Page 1.1 Motion Technology BEARINGS INTRODUCTION The Uses and Limitations of This Manual This publication is a compilation of material from the Manufacturers whose products we are proud to distribute throughout Australia. The material has been selected to make it easy for bearings to be identified, so a replacement can be ordered, confident that the right bearing is being fitted and will give satisfactory service. While containing some technical information, this Manual is primarily for the identification of a replacement and not for selecting a bearing by load carrying capacity. There could, however, be occasions when the information contained in the Manual will prompt a question as to whether by selecting another type or size of bearing there would be a more satisfactory performance of the equipment into which the bearing is to be fitted. On these occasions BSC would welcome your inquiry so we can provide expert advice. Before replacing a failed bearing it is a wise practice to consider if the failure appears premature. If it seems likely that this could be the case it may be worthwhile to refer to Table 2-26 on page 1.409 in the Engineering Section of this manual showing various bearing failures and their likely causes. After all, there is little point in spending the money to carry out the replacement if the cause of the premature failure is not removed and rectified. The two common causes for bearing failure are lack of cleanliness and the fit of the bearing on the shaft and/or in the housing not being correct. They may well have been correct once upon a time - but what about now! That is why we have included tables which show some basic recommended tolerances in the Engineering Section of this Manual for the most important detail effecting bearing performance. If you are designing some new equipment and need to make an initial selection , please contact your nearest BSC branch for assistance. When Should a Bearing Be Replaced? The usual signs that there is a troublesome bearing will be one or all of the following:- n Rough running of the equipment effecting its performance n Significant increase in the bearing temperature n Abnormal noise from the bearing housing These conditions will prompt the scheduling of the equipment for inspection. After dismantling the equipment and identifying the problem, it is strongly recommended that even if the other bearing(s) on the same shaft as the failed bearing appears to be okay, it, too, should be replaced. In the long run this will prove to be an economically sound policy. Some may be cautious about that recommendation as well as the proposition that if a machine is being overhauled for reasons other than the bearings that, nonetheless, all the bearings are replaced. The reasons for these recommendations are:- n The other bearing(s) on a shaft with a failed bearing have almost certainly been subjected to abnormal loading resulting from the rough running of that failed bearing which will cause it to fail at some time before the new bearing now being fitted. n The same reasoning applies to a machine overhaul. In both cases, the following points are worth considering:- n The cost of bearings is very small, relative to the cost of the loss of machine availability and its effect on production. n There is no additional labour costs to fit new bearings while the machine is being reassembled. n Stripping down a machine for major overhaul is frequently carried out in less than ideally clean conditions which makes it likely that rubbish will find its way into those parts of the bearing which are difficult to clean out and almost impossible to inspect, particularly Double Row Bearings - both ball and spherical roller. Even a single row tapered roller bearing is not really easy to clean thoroughly. n When dismantling equipment, it is difficult to avoid the risk of bruising the tracks of ball bearings and scoring the tracks of roller bearings. In fact, some machine designs are such that to take them apart is almost impossible to avoid. Damage to bearings will probably not become obvious until the machine goes back into service - with frustrations to all concerned when it has to be returned to the workshop to be reworked. ROLLING BEARINGS: STRUCTURES & TYPES Structure Rolling bearings (bearings hereinafter) normally comprise bearing rings, rolling elements and a cage. (see Fig. 1-1). Rolling elements are arranged between inner and outer General Information
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
BEARINGS
INTRODUCTION
General Information
The Uses and Limitations of This Manual
This publication is a compilation of material from theManufacturers whose products we are proud to distributethroughout Australia. The material has been selected tomake it easy for bearings to be identified, so a replacementcan be ordered, confident that the right bearing is beingfitted and will give satisfactory service.
While containing some technical information, this Manualis primarily for the identification of a replacement and notfor selecting a bearing by load carrying capacity. Therecould, however, be occasions when the informationcontained in the Manual will prompt a question as towhether by selecting another type or size of bearing therewould be a more satisfactory performance of the equipmentinto which the bearing is to be fitted. On these occasionsBSC would welcome your inquiry so we can provide expertadvice.
Before replacing a failed bearing it is a wise practice toconsider if the failure appears premature. If it seems likelythat this could be the case it may be worthwhile to refer toTable 2-26 on page 1.409 in the Engineering Section ofthis manual showing various bearing failures and their likelycauses. After all, there is little point in spending the moneyto carry out the replacement if the cause of the prematurefailure is not removed and rectified.
The two common causes for bearing failure are lack ofcleanliness and the fit of the bearing on the shaft and/or inthe housing not being correct. They may well have beencorrect once upon a time - but what about now! That iswhy we have included tables which show some basicrecommended tolerances in the Engineering Section of thisManual for the most important detail effecting bearingperformance.
If you are designing some new equipment and need tomake an initial selection , please contact your nearest BSCbranch for assistance.
ROLLING BEARINGS: STRUCTURES & TYPES
When Should a Bearing Be Replaced?The usual signs that there is a troublesome bearing will beone or all of the following:-
n Rough running of the equipment effecting itsperformance
n Significant increase in the bearing temperaturen Abnormal noise from the bearing housing
These conditions will prompt the scheduling of theequipment for inspection. After dismantling the equipmentand identifying the problem, it is strongly recommended
that even if the other bearing(s) on the same shaft as thefailed bearing appears to be okay, it, too, should bereplaced. In the long run this will prove to be aneconomically sound policy.
Some may be cautious about that recommendation as wellas the proposition that if a machine is being overhauled forreasons other than the bearings that, nonetheless, all thebearings are replaced. The reasons for theserecommendations are:-
n The other bearing(s) on a shaft with a failed bearinghave almost certainly been subjected to abnormalloading resulting from the rough running of that failedbearing which will cause it to fail at some time beforethe new bearing now being fitted.
n The same reasoning applies to a machine overhaul.
In both cases, the following points are worth considering:-
n The cost of bearings is very small, relative to thecost of the loss of machine availability and its effecton production.
n There is no additional labour costs to fit new bearingswhile the machine is being reassembled.
n Stripping down a machine for major overhaul isfrequently carried out in less than ideally cleanconditions which makes it likely that rubbish will findits way into those parts of the bearing which aredifficult to clean out and almost impossible to inspect,particularly Double Row Bearings - both ball andspherical roller. Even a single row tapered rollerbearing is not really easy to clean thoroughly.
n When dismantling equipment, it is difficult to avoidthe risk of bruising the tracks of ball bearings andscoring the tracks of roller bearings. In fact, somemachine designs are such that to take them apart isalmost impossible to avoid.
Damage to bearings will probably not become obvious untilthe machine goes back into service - with frustrations to allconcerned when it has to be returned to the workshop tobe reworked.
Structure
Rolling bearings (bearings hereinafter) normally comprisebearing rings, rolling elements and a cage. (see Fig. 1-1).
Rolling elements are arranged between inner and outer
Page 1.1Motion Technology
BEARINGS General Information
rings with a cage, which retains the rolling elements incorrect relative position, so they do not touch one another.With this structure, a smooth rolling motion is realizedduring operation.
Bearings are classified by the number of rows of rollingelements: e.g. single-row, double-row, or multi-row (tripleor four-row) bearings.
Tapered RollerBearing
Deep Groove BallBearing
Thrust Ball Bearing
Note: In thrust bearings inner and outer rings are also called�shaft washer� and �housing washer�, respectively; in taperedroller bearings, the respective forms are �cone� and �cup�.
Fig. 1-1: Bearing Structure
1) Bearing rings
The path of the rolling elements is called the raceway; and,the section of the bearing rings where the elements roll iscalled the raceway surface. In the case of ball bearings,since grooves are provided for the balls, they are alsoreferred to as raceway grooves.
The inner ring is normally engaged with a shaft; and, theouter ring with a housing.
Page 1.2 Motion Technology
2) Rolling element
Rolling elements may be either balls or rollers. Many typesof bearings with various shapes of rollers are available.
Spherical roller (barrel shape)
3) Cage
The cage guides the rolling elements along the bearingrings, retaining the rolling elements in correct relativeposition. There are various materials and types of cagesincluding pressed, machined, moulded, and pin type cagesin Steel, Brass and �Plastics�.
Due to lower friction resistance than that found in fullcomplement roller and ball bearings, bearings with a cageare more suitable for use under high speed rotation.
accommodate mainly axial load.
Rolling bearings are classified in Fig. 1-2, andcharacteristics of each bearing type are described in Tables1-1 to 1-13.
Type
The contact angle (a) is the angle formed by the directionof the load applied to the bearing rings and rolling elements,and a plan perpendicular to the shaft center, when thebearing is loaded.
Bearings are classified into two types in accordance withthe contact angle (a).
n Radial bearings (0° < a < 45°) -designed toaccommodate mainly radial load.
n The most popular types among rolling bearings, widely usedin a variety of industries.
n Radial load and axial load in both directions can beaccommodated.
n Suitable for operation at high speed, with low noise and lowvibration.
n Sealed bearings employing steel shields or rubber sealsare filled with the appropriate volume of grease whenmanufactured.
n Bearings with a flange or locating snap ring attached on theouter ring are easily mounted in housings for simplepositioning of housing location.
n In spite of having the same boundary dimensions asstandard bearings, maximum type bearings have a higherload rating because a filling slot on each of the inner andouter rings, allows a greater number of balls to be insertedthan do standard bearings.
Automobile: Front and rear wheels, transmissions, electri devices
Electric Equipment: Standard motors, electric appliances fo domestic use
Others: Measuring instruments, internal combustionengines, construction equipment, railway rollingstock, cargo transport equipment, agriculturaequipment, equipment for other industrial uses
n Bearing rings and balls possess their own contact angle which is normally 15°, 30°, or40°.
(Larger contact angle ... higher resistance against axial load)(Smaller contact angle...more advantageous for high-speed rotation)
n Single-row bearings can accommodate radial load and axial load in one direction.n DB and DF matched pair bearings and double-row bearings can accommodate radial
load and axial load in both directions.DT matched pair bearing are used for applications where axial load in one direction istoo large for one bearing to accept.
n ACH type high speed bearings were designed to contain more balls than standard bear-ings by minimizing the ball diameter, to offer improved performance in machine tools.
n Angular contact ball bearings are used for high accuracy and high-speed operation.
age 1.6 Motion Technology
ZZ(Shielded)
2RS(Sealed)
n Axial load in both directionsand radial load can be ac-commodated by adapting astructure pairing two single-row angular contact ballbearings back to back.
n For bearings with no fillingslot, the sealed type is avail-able.
Recommended cagesPressed steel cage (Conical type...single-row: S Type, Snap Type...double-row), copper alloy or phenolic resin machinedcage, synthetic resin moulded cage
Main applicationsSingle-row: Machine tool spindles, high frequency motors, gas turbines, centrifugal separators, front wheels of small size
One-piece type Two-piece inner ring Two-piece outer ring
n Radial load and axial load in both directions can be ac-commodated.
n A four-point contact ball bearing can substitute for a face-to-face or back-to-back arrangement of angular contactball bearings.
n Suitable for use under pure axial load or combined ra-dial and axial load with heavy axial load.
n This type of bearing possesses a contact angle (a) de-termined in accordance with the axial load direction. Thismeans that the bearing ring and balls contact each otherat two points on the lines forming the contact angle.
Recommended cageCopper alloy machined cage
Main applicationsAircraft jet engines, gas turbines
120, 130 11200, 11300...1200, 1300 extended inner ring type2200, 2300
( ) 2200 2RS2300 2RS
Cylindrical Bore Tapered Bore Sealed
Table 1-4: Self-Aligning Ball Bearings
n Spherical outer ring raceway allows self-alignment, ac-commodating shaft or housing deflection and misalignedmounting conditions.
n Tapered bore design can be mounted readily using anadaptor.
Pressed steel cage(Staggered type 12, 13, 22...2RS, 23...2RS)(Snap type 22, 23)
Power transmission shaft of wood working and spinningmachines, plummer blocks.
n Since the design allowing linear contact of cylindricalrollers with the raceway provides strong resistance toradial load, this type is suitable for use under heavy ra-dial load and impact load, as well as at high speed.
n N and NU types are ideal for use on the free side. Theyare movable in the shaft direction in response to changesin bearing position relative to the shaft or housing, whichare caused by heat expansion of the shaft or impropermounting.
n NJ and NF types can accommodate axial load in onedirection; and NH and NUP types can accommodatepartial axial load in both directions.
n With separable inner and outer ring, this type ensureseasy mounting.
n Due to their high rigidity, NNU and NN types are widelyused in machine tool spindles.
Recommended cages
Pressed steel cage (Z type), copper alloy machined cage,pin type cage, synthetic resin moulded cage
Main applications
Large and medium size motors, traction motors, gen-erators, internal combustion engines, gas turbines, ma-chine tool spindles, speed reducers, cargo transportequipment, and other industrial equipment
Page 1.9Motion Technology
Table 1-6: Machined Ring Needle Roller Bearings
BEARINGS General Information
NA4800NA4900NA5900
(NQI, NQIS)
RNA4800RNA4900RNA5900
(NQ, NQS)
--NA4900UU
--
NA6900 RNA6900
With inner ring Without inner ring
n In spite of their basic structure, which is the same asthat of NU type cylindrical roller bearings, bearingswith minimum ring sections offer space savings andgreater resistance to radial load, by using needle roll-ers.
n Bearings with no inner rings function using heat treatedand ground shafts as their raceway surface.
Reference:Many needle roller bearings other than those withmachined ring are available.For further details, refer to the section, �NeedleRoller Bearing Specification Table�.
Page 1.10 Motion Technology
Table 1-7: Tapered Roller Bearings
BEARINGS General Information
Standard Intermediate Steep Contact Angle Contact Contact
n Tapered rollers assembled in the bearings are guided by thecone back face rib.
n The raceway surfaces of cone and cup and the rolling con-tact surface of rollers are designed so that the respectiveapexes converge at a point on the bearing center line.
n Single-row bearings can accommodate radial load and axialload in one direction, and double-row bearings can accom-modate radial load and axial load in both directions.
n This type of bearing is suitable for use under heavy load orimpact load.
n Bearings are classified into standard, intermediate and steeptypes, in accordance with their contact angle (a). The largerthe contact angle is, the greater the bearing resistance to axialload.
n Since cup and cone assembly can be separated from eachother, mounting is easy.
n Bearings designated by the suffix �J� are interchangeableinternationally.
Main applicationsAutomobile: Front and rear wheels, transmissions, differentialpinion.Others: Machine tool spindles, construction equipment, largesize agricultural equipment, railway rolling stock speed reduc-tion gears, rolling mill roll necks and speed reducers, etc
Page 1.11Motion Technology
Table 1-8: Spherical Roller Bearings
Torrington SD CJ YM CFSKF -- CC CA --Fag MB -- EAM ETVPBNSK M C & CD CAM H K or K30KOYO R RH RHA SR K or K30
BEARINGS General Information
(For shaker screenapplications)
n Spherical roller bearings comprising barrel-shaped con-vex rollers, double-row inner ring and outer ring are clas-sified into four types: R, RH, RHA and SR, according totheir internal structure.
n With the bearing designed such that the circular arccenter of the outer ring raceway matches with the bear-ing center, the bearing is self-aligning, insensitive to er-rors of alignment of the shaft relative to the housing, andto shaft bending.
n This type can accommodate radial load and axial load inboth directions, which makes it especially suitable forapplications in which heavy load or impact load is ap-plied.
n The tapered bore type can be easily mounted/dis-mounted by using an adapter or withdrawal sleeve.There are two types of tapered bores (tapered ratio):
� 1 : 30 supplementary ...Suitable forcode K30 series 240 and 241
� 1 : 12 supplementary ...Suitable for seriescode K other than 240 & 241
n Lubrication holes, a lubrication groove and anti-rotationpin hole can be provided on the outer ring. Lubricationholes and a lubrication groove can be provided on theinner ring, too.
Convex asymmetrical roller type Convex symmetrical roller type
Page 1.12 Motion Technology
BEARINGS General Information
Table 1-9: Thrust Ball Bearings
51100512005130051400
-532005330053400
-53200U53300U53400U
-522005230052400
-542005430054400
-53200U54300U54400U
n This type of bearing comprises washer-shaped ringswith raceway groove and ball and cage assembly.
n Washers to be mounted on shafts are called shaftwashers (or inner rings); and, washers to be mountedinto housings are housing washers (or outer rings).Central washers of double direction bearings aremounted on the shafts.
n Single direction bearings accommodate axial load inone direction, and double direction bearingsaccommodate axial load in both directions. (Both ofthese bearings cannot accommodate radial loads).
n Since bearings with a spherical back face are self-aligning, ithelps to compensate for mounting errors.
Main ApplicationsAutomobile king pins, machine tool spindles
Page 1.13Motion Technology
BEARINGS General Information
Table 1-10: Cylindrical RollerThrust Bearings
Single Direction
THR...RTPW
TPWSTPWWS
TKTPKTFK
n This type of bearing comprises washer-shaped rings(shaft and housing washer) and cylindrical roller andcage assembly. Crowned cylindrical rollers produceuniform pressure distribution on roller/raceway contactsurface.
n Axial load can be accommodated in one direction.n Great axial load resistance and high axial rigidity areprovided.
Recommended cagesCopper alloy machined cage.
Main applicationsOil excavators, iron and steel equipment.
Table 1-11: Needle Roller ThrustBearings
n The separable type, comprising needle roller and cagethrust assembly and a washer, can be matched with apressed thin washer (W) or machined thick washer(WS).
n The non-separable type comprises needle roller andcage thrust assembly and a precision pressed washer.
n Axial load can be accommodated in one direction.n Due to the very small installation space required, this
type contributes greatly to size reduction of applicationequipment.
n In many cases, needle roller and cage thrust assemblyfunction by using the mounting surface of theapplication equipment, including shafts and housings,as its raceway surface.
Main applicationsTransmissions for automobiles, cultivators and machinetools.
Page 1.14 Motion Technology
BEARINGS General Information
Table 1-12: Tapered RollerThrust Bearings
TTHR 2THR
292002930029400
n This type of bearing comprises tapered rollers (with sphericallarge end), which are uniformly guided by the ribs of the shaftand housing washers.
n Both shaft and housing washers and rollers have taperedsurfaces whose apexes converge at a point on the bearingaxis.
n Single direction bearings can accommodate axial load in onedirection; and, double direction bearings can accommodateaxial load in both directions.
n Double direction bearings are to be mounted such that theircentral washer is placed on the shaft shoulder. Since thistype is treated with a clearance fit, the central washer mustbe fixed with a sleeve, etc
Recommended cagesCopper alloy machined cage
Main applicationsSingle direction: Crane hooks, oil excavator swivelsDouble direction: Rolling mill roll necks
Table 1-13: Spherical RollerThrust Bearings
n This type of bearing, comprising barrel-shapedconvex rollers arranged at an angle with theaxis, is self-aligning due to spherical housingwasher raceway; therefore, shaft inclination canbe compensated for to a certain degree.
n Great axial load resistance is provided . Thistype can accommodate a small amount of radialload as well as heavy axial load.
n Normally, oil lubrication is employed.
Recommended cagesCopper alloy machined cage
Main applicationsHydroelectric generators, vertical motors, propellershafts for ships, screw down speed reducers, jibcranes, coal mills, pushing machines, mouldingmachines
Page 1.15Motion Technology
BALL BEARINGSSingle Row - Radial..........................................................................1.16 Metric .................................................................................................................... 1.16Single Row - Maximum Capacity .....................................................1.19Single Row - Radial..........................................................................1.20 Inch ........................................................................................................................ 1.20 Inch and Inch Bore Metric .................................................................................... 1.21Single Row - Spherical OD ..............................................................1.22 Metric .................................................................................................................... 1.22Extra Small & Miniature ...................................................................1.23 Metric .................................................................................................................... 1.23 Flanged - Metric .................................................................................................... 1.24Single Row - Angular Contact .........................................................1.26 Metric .................................................................................................................... 1.26 Inch ........................................................................................................................ 1.28Single Row - Duplex.........................................................................1.29 Metric & Inch ......................................................................................................... 1.29Single Row - Magneto......................................................................1.30 Metric .................................................................................................................... 1.30Thrust ...............................................................................................1.31 Metric - Single Direction ....................................................................................... 1.31 Metric - Double Direction...................................................................................... 1.33 Inch - Single Direction .......................................................................................... 1.34Double Row - Self Aligning..............................................................1.36 Metric .................................................................................................................... 1.36 Inch ........................................................................................................................ 1.38Double Row - Radial ........................................................................1.39 Metric .................................................................................................................... 1.39Double Row - Angular Contact........................................................1.40 Metric .................................................................................................................... 1.40Triangle�s Lazy Susan ......................................................................1.41Sprag Clutches ................................................................................1.42NSK One-Way Clutches ...................................................................1.43Super Precision ...............................................................................1.45INA Track Roller - Single Row .......................................................1.144INA Track Roller - Double Row ......................................................1.146
BSC State Office NSW (02) 9824 2099 VIC (03) 9560 3222 QLD (07) 3866 8300Phone Numbers: SA (08) 8349 8388 TAS (03) 6326 6011 WA (08) 9337 3000
DIMENSIONS BEARING VARIANCEID OD W NUMBER ZZ DDU NR
R series bearings equivalent to Koyo EE serieshave a greater width in the ZZ and 2RS varieties.The �W� measurement listed above refers to theopen bearing. Please contact your local BSCbranch for other measurements.
Dimensions in inches.
If the product you need is not listed,please contact your local BSC branch.
Page 1.21Motion Technology
BALL BEARINGS Single Row - RadialInch and Inch Bore Metric
Ground face bearings are identified by the suffix�G�. These bearings have a standout betweenthe inner ring and outer ring on both sides thatare equal in size and can be matched in a varietyof ways. The clearance size of such bearingswhen mounted should be �C2� in general. Exam-ple: 7309 BG
The standard contact angle is 40° and is identi-fied by the suffix �B�. Other angles of contactavailable are 30° with a suffix �A� and 15° with asuffix �C�.
Other cage materials available in some sizes aremachined brass identified by suffix �FY� andphenolic resin with suffix �FT�.
If the product you need is not listed,please contact your local BSC branch.
Ground face bearings are identified by thesuffix �G�. These bearings have a standoutbetween the inner ring and outer ring on bothsides that are equal in size and can bematched in a variety of ways. The clearancesize of such bearings when mounted shouldbe �C2� in general. Example: 7309 BG
The standard contact angle is 40° and isidentified by the suffix �B�. Other angles ofcontact available are 30° with a suffix �A� and15° with a suffix �C�.
Other cage materials available in some sizesare machined brass identified by suffix �FY�and phenolic resin with suffix �FT�.
If the product you need is not listed,please contact your local BSC branch.
The 52 and 53 series are a standard capacitytype and are available shielded or sealed.
The 32 and 33 series are a maximum capac-ity type provided with a filling slot and no sealoptions.
32 and 33 series: contact angle 32°52 and 53 series: contact angle 24°
Page 1.40 Motion Technology
225 87.3 3321110 200 69.8 3222
240 92.1 3322
If the product you need is not listed,please contact your local BSC branch.
®
BALL BEARINGS Triangle’s Lazy Susan
FEATURES• Attaches easily to second surface even though
hidden after it is fastened to first surface.
• Only 5/16” thick! Engineered to add a minimumof height to item, with only a rolling contactbetween sections. (Can be recessed into sur-faces, reducing space to 1/8”. Also can be in-verted if desirable.)
• Triangle’s large ball race designed for maximumstability. Has a full race of precision ground ballbearings for smooth gliding rotation.
• One-unit construction. No separate parts, butpreassembled so there is no contact under loadexcept through the rolling balls. Center openingallows for center post and ease of centering theunit.
• Triangle’s 360° interlock prevents separation ofmoving parts. Bearing is interlocked for lifetimeof unit. No rivet to work loose or bind.
NSK’s GX-series One-Way Clutches incorporate a host of features designed to support further improvements in theproductivity and safety of industrial machinery.
Maintenance-free operation
GX series One-Way Clutches are permanently lubricated and are supplied “ready-to-use”. They require no mainte-nance such as greasing up, cleaning grease changing, offering significant economies of time and labour.
A broad operating temperature range
The lubricant used in GX series is a special high-performance grease developed by NSK. It assures outstandingreliability over an ambient operating temperature range of -20° to +80°C.
High Torque capacity
Wide cams with a larger radius of curvature than conventional models achieve high torque capacity under high loadsfor improved safety. A unique cam shape allows the GX series to withstand even shock loads without slipping.
Long service life
NSK’s expertise in ball bearing manufacturing technology ensures high dimensional precision of the cams, andinner and outer races, offering long service life. The high performance grease used to lubricate the GX series alsohelps minimise the wear on each part and prolong its life.
Easy to use
GX series One-Way Clutches are supplied as integral systems with all components built in. They are ready to beused “as it is”.
If the product you need is n
1. Outer race 5. Bearing2. Inner race 6. Retaining ring3. Cam 7. Side plate4. Garter Spring
Page 1.43Motion Technology
ot listed, please contact your local BSC branch.
Page 1.44 Motion Technology
Page 1.45Motion Technology
SUPER PRECISIONRadial - Super Precision ...................................................... 1.46Angular Contact - Super Precision ..................................... 1.47
BSC State Office NSW (02) 9824 2100 VIC (03) 9560 3222 QLD (07) 3260 6888Phone Numbers: SA (08) 8349 8388 TAS (03) 6272 4344 WA (08) 9337 3000
Page 1.46 Motion Technology
BALL BEARINGS Radial - Super PrecisionMetric
DIMENSIONS BEARINGID OD W NUMBER10 26 8 6000 TBHEP7
Cylindrical roller bearings feature high radial load capacity be-cause the rollers and raceway are in linear contact. These bear-ings are suitable for applications that involve heavy radial andimpact loading.
They are also appropriate for high-speed applications in that theycan be machined very accurately due to their structure.
Having a separable inner ring or outer ring, these bearings canbe mounted and dismounted easily.
Single-Row cylindrical roller bearings
ROLLER BEARINGS Cylindrical Roller Bearings
� The NU and N types exhibit their best performance when usedas free side bearings since they adjust to the shaft�s axialmovement, to a certain extent, relative to the housing posi-tion.
� The NJ and NF types carry axial load in one direction, whilethe NUP and NH types can carry a certain degree of axial loadin both directions.
� Type R cylindrical roller bearings feature enhanced load ratingcapacity compared with standard series, though both haveequal dimensions. They are identified by supplementary code�R�.*
Double-Row cylindrical roller bearings
� Double-row cylindrical roller bearings come in two types: witha cylindrical bore, and with a tapered bore. As for those with atapered bore, the specified amount of clearance can be ob-tained by adjusting the press-in distance.
Some bearings have lubrication holes and lubrication grooveson the outer ring. They are identified by supplementary code�W�. (Do not confuse this with the �W� used by NSK to indi-cate Cage Design.)
� These bearings can accommodatehigh radial loads, and are often usedon machine tool spindles.
� Bearings with internal clearancegreater than standard (eg identified bysuffix C3) are also available.
� When ordering, please advise any spe-cial requirement such as high speed,high temperature or high running ac-curacy.
* Note: Koyo use suffix �R� to denote Extra
Capacity whilst other manufacturers use suffix �E�.
DIMENSIONS VARIANCE REFERENCEI D O D W NU NJ NUP N NF SIZE CODE
If the product you need is not listed,please contact your local BSC branch.
* Note: Koyo use suffix �R� to denote Extra Capacity whilst other manufacturers use suffix �E�. Part Number Example: NU2206R
®
Page 1.59Motion Technology
ROLLER BEARINGS Cylindrical Single RowImperial
Used in applications where high radial loads exist or when axial shaft expansion has to beaccommodated. Normally used in conjunction with another bearing capable of taking axialloads, but can be used with the appropriate rib configuration to provide shaft axial location andto support modest axial loading.
The various rib formations are chosen to suit the needs of the application in terms of shaft axiallocation and ring retention.RHP bearings have rollers with optimised contour to avoid the stress raiser effects of edgeloading under heavy load situations and in misaligned running.
Cylindrical roller bearings are also made with specially controlled running tolerances and de-sign features for traction motor type applications.
ROLLER BEARINGS Cylindrical HyloadSeries M - Metric
Separable Cylindrical Inner Ring TypeMA ___TV, MA ___TAV Formed steel retainerMA ___UV, MA ___UAV Formed steel retainerMA ___EX, MA ___EAX Segmented steel retainerMA ___EB, MA ___EAB Polymeric retainerUse where shaft location is not required; functions as anexpansion bearing.
Outer Ring and Roller AssemblyM ___TV, M ___TAV Formed steel retainerM ___UV, M ___UAV Formed steel retainerM ___EX, M ___EAX Segmented steel retainerM ___EB, M ___EAB Polymeric retainerRollers are in direct contact with hardened shaft raceway.
Separable Single-ribbed Inner Ring TypeMR ___TV, MR ___TAV Formed steel retainerMR ___UV, MR ___UAV Formed steel retainerMR ___EX, MR ___FAX Segmented steel retainerMR ___EB, MR ___EAB Polymeric retainerUse for one-direction shaft location.
Separable Inner Ring With End PlateMSN___EX, MSN___EAX Segmented steel retainerMSN___EB, MSN___EAB Polymeric retainerThe inner ring and end plate operate as a two-ribbed innerring when held in place axially on the shaft. Used for two-direction shaft location and moderate thrust loads.
Separable Outer Ring With End PlateMU ___SNX, MU ___SNAX Segmented steel retainerMU ___SNB, MU ___SNAB Polymeric retainerThe outer ring and end plate operate as a two-ribbed outerring when held in place axially in the housing. Used for two-direction housing location and moderate thrust loads.
Page 1.64 Motion Technology
Page 1.65Motion Technology
ROLLER BEARINGS Cylindrical HyloadSeries M - Metric
Non-separable Type BearingMU ___TV, MU ___TAV Formed steel retainerMU ___UV, MU ___UAV Formed steel retainer
Use as a locating bearing or when only one race is retained axially.
Separable Cylindrical Outer RingMU ___CX, MU ___CAX Segmented steel retainerMU ___CB, MU ___CAB Polymeric retainerFor applications where an inner ring and roller sub-assemblyis required; a non-locating or expansion type bearing.
Inner Ring and Roller AssemblyMU ___X Segmented steel retainerMU ___B Polymeric retainerPermits smaller housing bore. Rollers are in direct contactwith hardened housing raceway.
Separable Single-ribbed Outer RaceMU ___DX, MU ___DAX Segmented steel retainerMU ___DB, MU ___DAB Polymeric retainerUse for one-direction location and moderate thrust loads.For applications where an inner ring and roller sub-assembly is required.
Non-separable, Full Complement BearingMU ___TM Full roller complementMU ___UM Full roller complementUse as a locating bearing or when only one race is retainedaxially. Full complement of rollers provide greater capacitythan the same size bearing with a retainer.
Note: Other series are available - Contact your nearest BSC branch for information
Page 1.66 Motion Technology
omitted ifouter ringnot furnished
ROLLER BEARINGS Cylindrical HyloadSeries M - Metric
Nomenclature
Series M 1000, 1200, 1300, 1900, 5200, 5300, 7300
Symbol Description M A I 2 05 GEA X / W101 / C0
M Metric series designation
A Plain cylindrical inner ringR Single rib inner ring
SN Short, single rib w/inner ring side plateU Double rib inner ring
S Metric bore size of next smaller bearingNone Standard capacity
6 High capacity series
1 Narrow width5 Wide width7 Intermediate width
0 Extra light series2 Light series3 Medium series9 Extra extra light series
05 One-fifth of bore diameter (mm)
G Snap ring groove in outer ring O.D.GG Two snap ring grooves in outer ring O.D.
R Snap ring groove in outer ring O.D.; snap rings includedRR Two snap ring grooves in outer ring O.D.; snap rings included
C Plain cylindrical outer ringD Single rib outer ringE Double rib outer ring
SN Short single rib w/outer ring side plateT Outer ring w/two retaining rings in I.D.U Single rib outer ring, one retaining ring in I.D.A Oversize O.D. outer ringH Blind dowel hole in outer ring O.D.
X Segmented retainerM Full complement (no retainer)V Formed steel retainerB Polymeric retainer
omitted ifinner ringnot furnished
Page 1.67Motion Technology
ROLLER BEARINGS Cylindrical HyloadSeries M - Metric
Nomenclature
Series M 1000, 1200, 1300, 1900, 5200, 5300, 7300
Symbol Description M A I 2 05 GEA X / W101 / C0
W101 Inner ring bore radius to clear .060" shaft filletW102 Inner ring bore radius to clear .080" shaft filletW105 Inner ring bore radius to clear .100" shaft filletW104 Inner ring bore radius to clear .125" shaft filletW105 Inner ring bore radius to clear .156" shaft filletW106 Inner ring bore radius to clear .187" shaft filletW107 Inner ring bore radius to clear .250" shaft filletW108 Inner ring with double bore radius, standard shaft fillet radiusW110 Outer ring with reduced width tol.W111 Outer ring width .0787" oversize (symmetrical ring)W112 Outer ring width .1575" oversize (symmetrical ring)W121 Outer ring width .0787" oversize and inner ring bore radius clear .060" filletW122 Outer ring width .1575" oversize and inner ring bore radius clear .156" filletW131 I.R. bore radius to clear .060" shaft fillet both sidesW132 I.R. bore radius to clear .080" shaft fillet both sidesW133 I.R. bore radius to clear .100" shaft fillet both sidesW140 O.R. snap ring groove on side opposite rib ringW141 O.R. snap ring groove on side opposite rib ring with W131 I.R.W142 O.R. snap ring groove on side opposite rib ring with W132 I.R.W143 O.R. snap ring groove on side opposite rib ring with W133 I.R.
None Standard commercial clearanceC2 Less than basic clearanceC0 Basic clearanceC3 Greater than basic clearanceC4 Greater than C3 clearanceC5 Greater than standard clearance(Standard for assembly with �A�
outer ring and omitted in model number)Cxxx Special specific clearance or range - ie/C002 or/C35-49 or C3549
The nomenclature is provided to identify the basic and optional features of bearing and mounted unitassemblies. The most commonly specified variations are listed; however availability of all variations cannotbe assumed. BSC Bearing Division should be consulted regarding optional features, availability, and theapplication requirements.
Procedure for Mounting Spherical Roller Bearingswith Tapered Bore and using an Adapter Sleeve
11111 Unwrap bearing and inspect for internal clearancegroup. When supplied with housings they willusually be �Normal Clearance� - no suffix afternumber - or, �C3 Clearance� one group greater thannormal. Multiply last two numerals of bearingnumber by 5 to determine nominal bore size inmillimetres.
22222 Measure bearing with feeler gaugesand note actualinternal clearance.Two rollers should belined up side by sideat top of the bearingand progressivelylarger feelers slid
between rollers and outer race untilbeginning of interference isfelt. Under no circum-stances should bearing berotated to �roll� feelersthrough - this will result inan erroneous reading.
33333 From �Actual Clearance� measured, subtract �Decrease in Radial Clearance�from column B of TABLE 1 below to obtain required �Residual Clearance�.
Example : 22232KC3 is measured at .230mm actual clearance which fallswithin the I.S.O. standard actual clearance range of .180 to .230mm. The�Decrease in Radial Clearance� for 22232KC3 column reads .075 to.100mm. Therefore the �Residual Clearance� range, which is what thebearing should measure within after tightening adapter, is :-Max = (.230 - .075) = .155mm and Min = (.230 - .100) = .130mm.
44444 Bearings should be �located� or �fixed� in one housing and allowed to �float� inthe other. Therefore, spacer rings will be used in one housing only. One or twospacer rings are used according to bearing size. If one is used, it should belocated on locknut size. If two, they should be positioned each side of bearing.
Two types of spacer rings commonly used are Solid (fully circular) and Gaptypes.
1 01 01 01 01 0 Housing cap, after cleaning, can be assembled to bodies (not interchangeable).Feeler gauge should be �tried� between housing base and frame pad to ensureflatness and that shims are not required. Base bolts can be tightened. Check thatrotation is free and not impaired. Taconite seals should be fitted. Adjust housingbase alignment to allow constant clearance around circumference of rotatinglabyrinth and taconite cover body. Seals should be lubricated until greaseextrudes fully around labyrinth circumference. DO NOT �overgrease� bearinghousing as damage and overheating can occur during initial running period.
88888 The floating bearing should be positionedslightly off housing centre toward locknutside of sleeve so that as nut is tightened,bearing will be displaced approximatelyback to centre line. No spacer rings areused.
99999 Grease should be �worked� into bearing for as much of circumference aspossible, rotating occasionally. Basic grease capacity rule is that 1/2 - 1/3 ofhousing volumetric capacity be filled. This can be done by hand prior to fittingcap which can be �plugged� and only the taconite seals lubricated via nipples ona regular basis.
High temperature or unusual applications may require a special grease selectionand should be referred to your nearest BSC branch.
55555 Bearings, adapter sleeves,rotating seal componentsand solid spacer ringsshould be fitted loosely toshaft in approximatelyrequired positions. Thetaconite seals (with outercasting) can be positionedalready assembled.Otherwise, rotatinglabyrinth and oil seal can bepositioned loosely.
77777 When bearings are in position, theadapter sleeves can be tightened.Fixed bearing should be tightenedfirst, �C� spanners should be usedwhere possible. Progressively,tighten locknut whilst feeler gaugereadings are taken to achievedesired �Residual Clearance�.
66666 After cleaning, set up bases in position. Fit base bolts (if on base frame) butleave loose so that bases can bemoved later to provide correctshaft alignment. Lower bearingsand shaft assembly into positioncarefully, re-spacing compo-nents as required.
� These bearings consist of convex asymmetric rollersand a prong type, copper alloy, outer ring guided,machined cage. This cage possesses optimumcharacteristics for use with shaker screens.
� The bearings most commonly used with shakerscreens are 223 series spherical roller bearings. Theyare identified by the supplementary code �ROVSW502.� The outer ring outside diameter tolerance ofthese bearings is held to a small allowable variation.
DIMENSIONSI D O D W40 90 3345 100 3650 110 4055 120 4360 130 4665 140 4870 150 5175 160 5580 170 5885 180 6090 190 6495 200 67
Interchange Table - Spherical Roller Bearings for Vibrating Equipment
Page 1.75®
Motion Technology
TAPERED ROLLER BEARING
Tapered Bearing types .......................................................... 1.76Examples of Applications...................................................... 1.79Single Row - Tapered: Metric ............................................... 1.82Single Row - Tapered: Inch .................................................. 1.83Tapered - By Reference: Inch............................................... 1.93Tapered - Thrust: Inch .......................................................... 1.99
1. CURRENT BEARING TYPES
ROLLER BEARINGS Tapered Bearing Types
1.1 Single Row Bearings - Most common typesThese bearings are usually mounted in pairs in �O� or �X�arrangement. During equipment assembly they need to be setto the required clearance (end play) or preload condition tooptimise performance.
TS (Pressed steel cage)I.D. 7.937 - 863.600 mm
(0.3125 - 34.000 in)O.D. 31.991 - 977.900 mm
(1.2595 - 38.5000 in)The TS bearing is especially suited tomost automobile and industrial applica-tions
TS (Pin type cage)I.D. 152.400 - 1701.800 mm
(6.0000 - 67.0000 in)O.D. 307.975 - 1828.800 mm
12.1250 - 72.0000 in)Medium and large bore TS bearings canhave more rollers (and increased load-carrying capacity) when designed with apin type cage.
TSF (Flanged outer race)I.D. 7.937 - 1270.000 mm
(0.3125 - 50.0000 in)O.D. 31.991 - 1435.100 mm
(1.2595 - 56.5000 in)The TSF bearing is popular in gearreduction units, modern automotivetransaxles and transmissions andmachine tool spindles.
1.2 Two-Row bearings
TDO (2 row double outer race)I.D. 9.525 - 2085.000 mm
(0.3750 - 82.0866 in)O.D. 30.480 - 2460.000 mm
(1.2000 - 96.8504 in)TDO bearings are applied to heavy dutygear drives and a variety of otherapplications. These bearings can either beused at fixed or floating positions.
TDI (2 row double inner race)I.D. 25.400 - 1200.150 mm
(1.0000 - 47.2500 in)O.D. 50.005 - 1593.850 mm
(1.9687 - 62.7500 in)The TDI bearing is applied to gearreduction units, cranes, calender rolls andother industrial machinery. A similarbearing, TDIT, is available with a taperedinner race bore. The TDIT is designed forlarge adapter-type pillow blocks, rollingmill roll necks and calender rolls. TDIbearings can either be used at fixed orfloating positions.
TNA (2 row non-adjustable)I.D. 19.050 - 406.400 mm
(0.7500 - 16.0000 in)O.D. 45.984 - 574.675 mm
(1.8104 - 22.6250 in)The TNA bearing is preset duringmanufacture and can either be used atfixed or floating positions.
TNASW (TNA with lubrication grooves)I.D. 30.000 - 260.350 mm
(1.811 - 10.2500 in)O.D. 71.438 - 400.050 mm
(2.8125 - 15.7500 in)The TNASW bearing is used in sheavesand other dead shaft applications wherelubrication is necessary through the shaft.This bearing can either be used at fixedor floating positions.
TNASWE (TNASW with extended ribs)I.D. 19.050 - 304.800 mm
(0.7500 - 12.0000 in)O.D. 47.000 - 393.700 mm
(1.8504 - 15.5000 in)The TNASWE bearing is extensivelyapplied to crane sheaves and oil fielddrilling rig sheaves. This bearing caneither be used at fixed or floatingpositions.
ROLLER BEARINGS Tapered Bearing Types
1.3 Spacer assemblies
2S (2 row snap ring spacer assembly)I.D. 17.462 - 83.345 mm
(0.6875 - 3.2813 in)O.D. 39.878 - 125.412 mm
(1.5700 - 4.9375 in)The 2S bearing is used in many applica-tions where a two row preset bearing isrequired with a close range of adjustment,and uses a snap ring for axial location.
SR (2 row �SET-RIGHT�TM spacer assembly)I.D. 25.000 - 200.000 mm
(0.9842 - 7.8740 in)O.D. 47.000 - 300.000 mm
(1.8504 - 11.8110 in)The SR bearing is used in manyapplications where a two row presetbearing is required with a close range ofadjustment.
1.5 Thrust bearings
2TS-IM assembly (O arrangement) and2TS-DM assembly (X arrangement)Available in all TS sizes.
The 2TS-IM/DM bearing assemblies areused in many applications such as gearreduction units and industrial machines.These preset two row assemblies areused at the fixed position.
2TS-TM assembly (tandem arrangement)I.D. 45.000 - 80.000 mm
(1.7717 - 3.1496 in)O.D. 80.000 - 160.000 mm
(3.1496 - 6.2993 in)The 2TS-TM bearing is applied tohydrostatic axial piston pumps and motors,where high axial loads are present.
1.4 Package bearings
TDOUP - UNIPACTM
I.D. 25.000 - 39.954 mm(0.9843 - 1.5730 in)
O.D. 52.000 - 76.000 mm(2.0472 - 2.9921 in)
Originally designed for automotive wheels,the UNIPAC bearing can also be used inindustrial applications. The UNIPACbearing is a preset, prelubricated andsealed package.
�AP�TM - ALL-PURPOSE I.D. 85.725 - 203.200 mm
(3.3750 - 8.0000 in) O.D. 165.100 - 301.701mm
(6.5000 - 11.8780 in) The �AP� bearing is furnished as a self- contained, preset, prelubricated and sealed
assembly. Originally designed for railroad cars and locomo-tives, it is also used for crane wheels, table rolls and sheaves.These applications may require modifications to the end capand backing ring and the addition of lubrication fittings.
TTC (Cageless thrustbearing)I.D. 25.654 - 152.400 mm
(1.0100 - 6.0000 in)O.D. 55.562 - 241.300 mm
(2.1875 - 9.5000 in)The TTC bearing is aself-contained assemblyused in oscillating or slowrotating applicationswhere pure thrust loads are applied.
TTSP (Caged thrust bearing) I.D. 16.129 - 147.637 mm
(0.6350 - 5.8125 in) O.D. 41.275 - 177.800 mm
(1.6250 - 7.0000 in) The TTSP bearing is used in automotive steering pivots and industrial applications
where full rotation is not required.
ROLLER BEARINGS Tapered Bearing Types
TTHD (Heavy duty thrust bearing) I.D. 34.925 - 1352.550 mm
(1.3750 - 53.2500 in) O.D. 76.200 - 1524.000 mm
(3.0000 - 60.0000 in) The TTHD bearing is designed for slow to
moderately high speed applications including oil well swivels,extruders and piercing mill thrust blocks.
2. SEALED BEARINGS
TSL (With DUO FACE®-PLUS seals)I.D. 19.050 - 68.262 mm
(0.7500 - 2.6875 in)O.D. 45.237 - 110.000 mm
(1.7810 - 4.3307 in)The TSL bearing is similar to the TS, butwith a �DUO FACE-PLUS� seal pressed ontothe O.D. of the inner race rib. The TSLbearing is used in moderate to low speedapplications, such as farm implementwheels, idler rollers and side delivery hayrakes.
3. PRECISION BEARINGS
TS and TSF single row bearingsI.D. 60.000 - 215.900 mm
(2.3622 - 8.5000 in)O.D. 100.000 - 290.010 mm
(3.9370 - 11.4177 in)These bearings have to bemounted in pairs in �O� or �X�arrangement. They need to be setduring equipment assembly foroptimum performance.
�Hydra-Rib�TM bearings TSHRI.D. 50.000 - 270.000 mm
(1.9685 - 10.6299 in)O.D. 104.000 - 375.000 mm
(4.0945 - 14.7638 in)The �Hydra-Rib� bearing is designed forapplications where bearing setting is criticalover a wide range of speeds and/or loadconditions. The �Hydra-Rib� bearing is atypical machine tool bearing and is fitted tothe spindle rear position with a TSMA or TSas the companion spindle nose bearing.
Page 1.78 Motion Technology
High speed bearings TSMA(with axial oil manifold)The TSMA bearing is used in applicationswith speeds far in excess of those forwhich standard bearings are designed.This bearing is notably used in themachine tool industry.
Crossed roller bearings TXR I.D. 203.200 - 1879.600 mm
(8.0000 - 74.0000 in) O.D. 279.400 - 2197.100 mm
(11.0000 - 86.50000 in) The crossed roller bearing is ideal for machine tool applica-
tions such as vertical boring mills, vertical grinding machinesand other similar applications.
4. OTHER TYPES OF BEARINGS
TNASWH/TNASWHFI.D. 7.938 - 127.000 mm
(0.3125 - 5.0000 in)O.D. 28.575 - 355.600 mm
(1.1250 - 14.0000 in)TNASWH bearings are applied toback-up rollers, coil conveyors, carsand (in the case of TNASWHF)equipment moving on rails.
5. FOUR-ROW BEARINGS - MOST COMMON TYPES
TQO (Straight bore4 row assembly)I.D. 50.800 - 1500.000 mm
(2.0000 - 59.0551 in)O.D. 83.337 - 1915.000 mm
(3.2810 - 75.3937 in)TQO bearings are applied to rollnecks on low and medium-speedrolling mills.
®
ROLLER BEARINGS Tapered Bearing Types
TQITS (4 row taperedbore assembly)I.D. 123.022 - 1004.633 mm
(4.8434 - 39.5525 in)O.D. 174.625 - 1308. 100 mm
(6.8750 - 51.5000 in)TQITS bearings are applied with aheavy interference fit on roll necksof high speed rolling mills.
TQITSE (TQIT with extendedinner race)I.D. 165.456 - 1004.634 mm
(6.5140 - 39.5525 in)O.D. 229.946 - 1308.100 mm
(9.0530 - 51.5000 in)The TQITSE bearing is similar tothe TQITS, except the large boreinner race has an extension toprovide a hardened, concentricand smooth surface for radial lipseals. All roll neck bearings canbe provided with grooves cut intothe inner race bores.
®
ROLLER BEARINGS
Tractor gearbox an
TQOW (TQO with inner race facelubricant slots)I.D. 50.800 - 1499.872 mm
(2.0000 - 59.0501 in)O.D. 83.337 - 1914.873 mm
(3.2810 - 75.3887 in)Similar to type TQo, except that theinner race faces have lubrication slotsat each face.
6. HEAVY DUTY THRUST BEARINGS
TTHDFL (TTHD with one flat race) I.D. 124.993 - 1352.550 mm
(4.9210 - 53.2500 in) O.D. 135.737 - 1473.200 mm
(7.3125 - 58.0000 in) The TTHDFL bearing is similar to the TTHD. The TTHDFL bearing
consists of one tapered thrust race, one flat thrust race, a cageand a set of rollers.
Page 1.79Motion Technology
Examples of Applications
d power take-off
Page 1.80®
Motion Technology
ROLLER BEARINGS Examples of Applications
Loader front and rear axles
Four wheel drive passenger car - front and rear axles
This series of needle roller bear-ings consist of a thin walleddrawn cup outer ring and a nee-dle roller and cage assemblywhich together form the bearingunit.
Drawn cup needle roller bear-ings are available with openends (HK) or closed one end(BK). These bearings are alsoavailable in sealed one side (HKand BK) or sealed both sides(HK only).
These bearings must be fullysupported to ensure proper loadcarrying capacity and the bear-ings running surfaces must behardened and ground, otherwise,a suitable inner ring must be used.
Drawn cup needle rollerbearing, HK...2RS with openends, sealed on both sides.
Drawn cup needle rollerbearing BK with closed ends.
BK
With Open Ends With Closed End Dimensions (mm) Suitable Inner Rings (order separately)Shaft Stand. Special Designation F
wD C C
tr LR IR
Dia. Sizes Sizes -0.3 min. min. Designation DesignationDesignation Designation
TN=Plastic cage, permissible operating temperature: 120°C(continuous operation).+ =not available with lubrication hole.ø =double row with lubrication hole.
NEEDLE ROLLER BEARINGS
With Open Ends With Closed End Dimensions Suitable Inner Rings (order separately)Shaft Stand. Special Designation Fw D C Ct r LR IRDia. Sizes Sizes -0.3 min. min. Designation Designation
Designation Designation
Needle: Drawn CupHK and BK
With Open Ends With Closed End Dimensions Suitable Inner Rings (order separately)Shaft Stand. Special Designation FW D C Ct r LR IRDia. Sizes Sizes -0.3 min. min. Designation Designation
Designation Designation
Metric Series:HK = with open endsBK = with closed ends
Dia. ends,sealed ends,sealed end, sealed -0.3 -0.3 min. min. HK..2RS LR, IRon one side on both sides Designation LR Designation IR Designation Designation
HK..RS HK..2RS BK..RS
Dimensions
Metric Series:HK - RS = open ends sealed on one sideHK - 2RS = open ends sealed on both sides
Page 1.105Motion Technology
NEEDLE ROLLER BEARINGS Needle: Drawn CupInch
Series SCE, SCH Series BCE, BCH
Bearing DimensionsShaft Part No. Part No. Inside Dia. Outside Dia. Width End Recess Matching InnerDia. Open End Closed End F
W nom D nom C inch b max Inner Ring Ring Bore
inch inch inch No. Dia.
* (Also available in full complement design)
Imperial Series:SCE/SCH = open endsBCE/BCH = closed ends
Bearing DimensionsShaft Part No. Part No. Inside Dia. Outside Dia. Width End Recess Matching InnerDia. Open End Closed End FW nom D nom C inch b max Inner Ring Ring Bore
Note: Other inner ring bore diameters may be available if required.
Bearing DimensionsShaft Part No. Part No. Inside Dia. Outside Dia. Width End Recess Matching InnerDia. Open End Closed End FW nom D nom C inch b max Inner Ring Ring Bore
Bearing Dimensions Load Ratings in lbf Mounting Dimensions in Inch and mmShaft Part No. I.D. O.D. Width Dyna- Static Shaft Diameter F Housing Diameter GDia. FW nom D nom C inch mic C0 inch inch mm mm inch inch mm mm
inch inch C max min max min max min max min
Bearing DimensionsShaft Part No. Part No. I.D. O.D. Width End Recess Matching InnerDia. Open End Closed End FW nom D nom C inch b max Inner Ring Ring Bore
inch inch No. Dia.
1-1/4 S 2012 CS 2012 1.2500 1.5000 0.750 0.10 PI 162012 1S 2016 CS 2016 1.2500 1.5000 1.000 0.10 PI 162016 1S 2020 CS 2020 1.2500 1.5000 1.250 0.10 PI 162020 1SH 2020 CSH 2020 1.2500 1.6250 1.250 0.14 PI 162020 1
1-3/8 S 228 CS 228 1.3750 1.6250 0.500 0.10 PI 182208 1-1/8S 2212 CS 2212 1.3750 1.6250 0.750 0.10 PI 182212 1-1/8S 2220 CS 2220 1.3750 1.6250 1.250 0.10SH 2212 CSH 2212 1.3750 1.7500 0.750 0.14 PI 182212 1-1/8
These assemblies provide high accuracy and load car-rying capacity with good rigidity and low radial sec-tional height.
The running surfaces for needle roller and cage assem-blies must be a suitable hardened and ground surface.Otherwise, a suitable inner ring must be used.
The cages of this series are manufactured from steel,plastic for smaller diameters (TN) or brass for largerdiameters.
These assemblies are also available in double row (ZW)or split design (D).
Please note that the items in �special sizes designa-tion� column are not readily available and should notbe used for new designs.
* Special designs also available for connecting rod applications - please see INA catalogue.
4 C 647216 4.0000 4.5000 1.000C 647224 4.0000 4.5000 1.500
Series C
Bearing DimensionsShaft Part No. F
W nom E
W nom B
C inch
Dia. inch inch 0.000-0.015
Page 1.115Motion Technology
NEEDLE ROLLER BEARINGS Needle: Inner RingsMetric
Hardened and ground inner rings areused to provide a suitable running sur-face for needle roller bearings when theexisting running surface is unsuitable.Inner rings are available in series IR andLR.
IR inner rings are hardened and precisionmachined. They have lead chamfers onthe edges and are available in specialexecutions. These executions include in-creased accuracy, grinding tolerancesand lubrication holes.
LR inner rings are hardened and finemachined. The side faces are not groundand the corners are only broken. The LRseries is not available in special execu-tions.*Part number taken from dimensions e.g. IR 5 x 8 x 12
Inner Ring IR Inner Ring LR
5 IR 5 8 12 0.3IR 5 8 16 0.3
6 IR 6 9 12 0.3IR 6 9 16 0.3
ø IR 6 10 10 0.3þ IR 6 10 12 0.3
7 IR LR 7 10 10.5 0.3IR 7 10 12 0.3IR 7 10 16 0.3
8 ø IR 8 12 10 0.3IR LR 8 12 10.5 0.3
þ IR 8 12 12 0.3IR LR 8 12 12.5 0.3
9 IR 9 12 12 0.3IR 9 12 16 0.3
10 IR LR 10 13 12.5 0.3ø IR 10 14 12 0.3
IR 10 14 13 0.3þ IR 10 14 14 0.3
IR 10 14 16 0.3IR 10 14 20 0.3
12 IR 12 15 12 0.3IR LR 12 15 12.5 0.3IR 12 15 16 0.3IR LR 12 15 16.5 0.3IR LR 12 15 22.5 0.3
Inner Ring Dimensions Mounting Dimensions in inchShaft Part No. Mass I.D. O.D. Width Shaft Shaft Dia. Shaft Dia. Shaft Dia. Shaft Dia.Dia. approx. d nom F nom B inch Fillet press fit press fit slip fit slip fit
lbs inch inch +0.010 r max W inch W inch W inch W inch-0.005 inch max min max min
Page 1.118 Motion Technology
NEEDLE ROLLER BEARINGS Needle: With HardenedMetric Outer Rings
The needle rollers of this series have ahigh load carrying capacity and a smallsectional height. The hardened outerring has ribs and together with the nee-dle roller and cage assembly the com-plete bearing unit is formed.
This series is available with or withoutinner rings.
Sealed bearings are also available in thisseries. RNA49...RS, RNA49...2RS,NA49...RS and NA49...2RS are thesealed bearing part numbers.
Needle roller bearingNK,NKS,RNA49,RNA48
without inner ring
Needle roller bearingNKI,NKIS,NA49,NA48
with inner ring
Needle roller bearingNA49...2RS with
inner ring, sealed
Needle rollerbearing NA 69with inner ring
Needle rollerbearing RNA 69
without inner ring
Needle Roller Bearings: Without Inner ring - MetricSeries NK, NKS, RNA49 & RNA 69
NK (FW # 10mm)NKS (FW # 12mm)
NK (FW $ 12mm)NKS (F
W $ 14mm)
RNA 49, RNA 69 (FW # 35mm)
RNA 69 (FW $ 40mm)
Series Dimensions (mm)Shaft NK NKS RNA 49 RNA 69 FW D C rs
TN=Plastic cage, permissible operating temperature: 120°C(continuous operation).+ With closing rings, without lubrication hole and groove.ø Not to be used for new designs; production being phased out.
TN = Plastic cage, permissible operating temperature: 120°C (continuous operation). * Permissible axial displacement of the inner ring, with respect to the outer ring, from a central position.
+ With closing rings, without lubrication hole and groove. ø Not to be used for new designs; production being phased out.
NEEDLE ROLLER BEARINGS Needle: With Inner RingsNKI, NKIS, NA 49, NA 69 Metric
Series Dimensions (mm)Shaft NKI NKIS NA 49 NA 69 d F D B rs s*Dia. Designation Designation Designation Designation min.mm
Bearing Dimensions Mounting Dimensions in inch and mm Housing with slip fit Housing with press fit
Shaft Part No. I.D. O.D. Width Matching Shaft Shaft Housing Housing Shaft Shaft Housing HousingDia. FW nom D nom C inch Inner Ring Dia.F Dia. F Dia. G Dia. G Dia. F Dia. F Dia. G Dia. G
inch inch +0.000 No. Order inch inch inch inch inch inch inch inch-0.005 Separate max min min max max min min max
* Further sizes are available. Contact your nearest BSC branch for details.
TN=Plastic cage, permissible operating temperature: 120°C (continuous operation).+ Lubrication hole in inner ring.ø Double row, with lubrication groove and hole in outer ring.þ Outer ring width = 20mm.* Permissible axial displacement of the inner ring
With Inner Ring - Series NAO
Single Row Double RowLateral cage guidance
by the housingLateral cage guidance
by the shaft
Designation Dimensions (mm) Mounting Dimensions (mm) Shaft d D B F E rs s* d1 D1 d2 D2 ra Dia. min max
mm
Page 1.128 Motion Technology
NEEDLE ROLLER BEARINGS Needle Thrust Bearings
Axial Needle Roller andCage Assemblies Series AXK
The axial needle roller and cage assembly is the basic component ofaxial needle roller bearings. The needle rollers are retained and guidedin pockets arranged radially in the cages. For shaft diameters less than10mm, the cage is made from plastic. For larger diameters, the cage ismade from profiled and surface hardened steel strip.
The high accuracy of the needle rollers ensures uniform load distribu-tion.
As axial needle roller and cage assemblies are guided on the shaft, thisresults in relatively low circumferential speeds on the guiding surfaceeven at high speeds.
Axial needle roller and cage assemblies AXK can be combined with axialbearing washers of series AS, GS, WS, LS and ZS.
Centre washer ZS for doubledirection and axial bearing
combinations
Axial Cylindrical Roller and Cage Assemblies SeriesK811,K812,K874,K893,K894
Axial cylindrical roller and cage assemblies contain cylindrical rollerswhich are retained and guided in pockets arranged radially in the heavysection cages. The cages are made from plastic (suffix TN), light metalor brass.
All axial cylindrical roller and cage assemblies can be combined withhousing locating washers series GS and shaft locating washer seriesWS. Axial cylindrical roller and cage assemblies series K811 can alsobe combined with axial bearing washers of series AS, LS and ZS.
Axial Bearing Washers ZS
Centre washers guided in the housing or on the shaft are used be-tween two axial needle roller and cage assemblies series AXK or axialcylindrical roller and cage assemblies series K811. This provides dou-ble direction bearing combinations which can be combined with hous-ing locating washers series GS or shaft locating washers series WS.
INA centre washers series ZS are available, on request, in a specialexecution:
with an external lubrication groove and three radiallubrication holes(suffix ASR 3).
Axial Needle Axial Bearing Washers Dimensions in mm RacewayShaft Designation Bearing Washer Bearing Washer Housing Loc. Washer Shaft Loc. Washer DC1 D1 DC d1 DW B1 B a DimensionsDia. Designation Designation Designation Designation d D rs Eb Eamm min.
Raceway Dim. Shaft Axial Cylindrical Roller Bearing Axial Cyl. Axial Bearing Washers Dimensions (mm) Dia. Complete Bearing Designation Cage Ass. Housing Shaft Bearing DC1 D1 D d1 T DW B a rs Eb Ea mm 811 812 893 874 894 Designation Loc. Wash Loc. Wash Washer d DC min
Combination 2)with K811 andGS 1) The combination with axial needle
roller and cage assemblies AXKconsists of:
2 axial needle roller and cageassemblies AXK2 housing locating washers GS8111 centre washer ZS
SeriesZS
Shaft Centre Dimensions (mm) Axial Needle Axial Cyl. Housing Dia. Washer d D B rs & Cage Ass. & Cage Ass. LocatingWmm Designation min. Designation Designation Designation
Shaft Dimensions (mm) Axial Needle Axial Cyl. Housing Dia. Washer d D B rs & Cage Ass. & Cage Ass. LocatingWmm Designation min. Designation Designation Designation
2) The combination with axialcylindrical roller and cageassemblies K811 consists of:
2 axial needle roller and cageassemblies K8112 housing locating washers GS8111 centre washer ZS
3) The combination with axial needleroller and cage assemblies AXKconsists of:
2 axial needle roller and cageassemblies AXK2 housing locating washers WS8111 centre washer ZS
4) The combination with axialcylindrical roller and cageassemblies K811 consists of:
2 axial needle roller and cageassemblies K8112 housing locating washers WS8111 centre washer ZS
Bearing Dimensions Mounting Dimensions in Inch ThrustShaft Part No. I.D. O.D. R. D. ID Race OD Race Cage I.D. Guided Cage O.D. Guided WasherDia. DC1 nom DC nom DW inch Eb Ea Sh. Dia Sh. Dia. H. Dia. H. Dia. H. Dia. Sh. Dia. Des.inch inch inch +0.0000 inch inch F inch F inch G inch G inch G inch F inch TWA,TWB
This series of bearing can be loaded in aradial or axial (thrust) direction. NKIA canaccept axial (thrust) load in one directionwhereas series NKIB can accept axial(thrust) load in both directions.
These bearings are used in transmissionand machine tool applications such asdrilling spindles, centering spindles andsimilar applications.
Needle roller/angular contact ballbearing NKIA, single direction
Needle roller/angular contact ballbearing NKIB, double direction
Needle roller/axialball bearing NKX
Needle Roller/ Angular Contact Ball BearingsSingle Direction: Series NKIA Double Direction: Series NKIB
SeriesNKIA
SeriesNKIB
Shaft Dimensions (mm) Dia. Designation d F D B C r
15 NKXR15 NAXR15 NKXR15Z NAXR15Z 15 24 28.1 29.2 23 9 6.5 15 0.3 23.7 0.3 IR 12 x 15 x 1617 NKXR17 NAXR17 NKXR17Z NAXR17Z 17 26 30.1 31.2 25 9 8.0 17 0.3 25.7 0.3 IR 14 x 17 x 1720 NKXR20 NAXR20 NKXR20Z NAXR20Z 20 30 35.1 36.2 30 10 10.5 20 0.3 30.7 0.3 IR 17 x 20 x 2025 NKXR25 NAXR25 NKXR25Z NAXR25Z 25 37 42.1 43.2 30 11 9.5 25 0.6 37.7 0.6 IR 20 x 25 x 2030 NKXR30 NAXR30 NKXR30Z NAXR30Z 30 42 47.1 48.2 30 11 9.5 30 0.6 42.7 0.6 IR 25 x 30 x 2035 NKXR35 NAXR35 NKXR35Z NAXR35Z 35 47 52.1 53.2 30 12 9.0 35 0.6 47.7 0.6 IR 30 x 35 x 2040 NKXR40 NAXR40 NKXR40Z NAXR40Z 40 52 60.1 61.2 32 13 10.0 40 0.6 55.7 0.6 IR 35 x 40 x 2045 NKXR45 NAXR45 NKXR45Z NAXR45Z 45 58 65.2 66.5 32 14 9.0 45 0.6 60.6 0.6 IR 40 x 45 x 2050 NKXR50 NAXR50 NKXR50Z NAXR50Z 50 62 70.2 71.5 35 14 10.0 50 0.6 65.5 0.6 IR 45 x 50 x 25The axial cages are made of plastic, permissible operating temperature: 120°C (continuous operation).*Inner rings must be ordered separately.
10 NKX10TN NAXK10TN NKX10ZTN NAXK10ZTN 10 19 24.1 25.2 23 9 6.5 10 0.3 19.7 0.3 IR 7 x 10 x 1612 NKX12 NAXK12 NKX12Z NAXK12Z 12 21 26.1 27.2 23 9 6.5 12 0.3 21.7 0.3 IR 9 x 12 x 1615 NKX15 NAXK15 NKX15Z NAXK15Z 15 24 28.1 29.2 23 9 6.5 15 0.3 23.7 0.3 IR 12 x 15 x 1617 NKX17 NAXK17 NKX17Z NAXK17Z 17 26 30.1 31.2 25 9 8.0 17 0.3 25.7 0.3 IR 14 x 17 x 1720 NKX20 NAXK20 NKX20Z NAXK20Z 20 30 35.1 36.2 30 10 10.5 20 0.3 30.7 0.3 IR 17 x 20 x 2025 NKX25 NAXK25 NKX25Z NAXK25Z 25 37 42.1 43.2 30 11 9.5 25 0.6 37.7 0.6 IR 20 x 25 x 2030 NKX30 NAXK30 NKX30Z NAXK30Z 30 42 47.1 48.2 30 11 9.5 30 0.6 42.7 0.6 IR 25 x 30 x 2035 NKX35 NAXK35 NKX35Z NAXK35Z 35 47 52.1 53.2 30 12 9.0 35 0.6 47.7 0.6 IR 30 x 35 x 2040 NKX40 NAXK40 NKX40Z NAXK40Z 40 52 60.1 61.2 32 13 10.0 40 0.6 55.7 0.6 IR 35 x 40 x 2045 NKX45 NAXK45 NKX45Z NAXK45Z 45 58 65.2 66.5 32 14 9.0 45 0.6 60.5 0.6 IR 40 x 45 x 2050 NKX50 NAXK50 NKX50Z NAXK50Z 50 62 70.2 71.5 35 14 10.0 50 0.6 65.5 0.6 IR 45 x 50 x 2560 NKX60 NAXK60 NKX60Z NAXK60Z 60 72 85.2 86.5 40 17 12.0 60 1.0 80.5 1.0 IR 50 x 60 x 2570 NKX70 NAXK70 NKX70Z NAXK70Z 70 85 95.2 96.5 40 18 11.0 70 1.0 90.5 1.0 IR 60 x 70 x 25
TN=Plastic cage, permissible operating temperature: 120°C (continuous operation). With closing ring on one side.*Inner rings must be ordered separately.
SeriesNKXR
SeriesNKXR..Z
Mounting DimensionsSeriesNKX
SeriesNKX..Z
Mounting Dimensions
Needle Roller/Axial CylindricalRoller Bearings:Without or WithRetaining Cap
Needle Roller/Axial BallBearings:Without or WithRetaining Cap
Shaft Des. Dimensions (mm) Mounting Suitable Inner Ring*Dia. Des. to Bearing w/ Des. to FW D D1 D2 C C1 C2 dW rs Dimensions d F Bmm DIN 5429 Ret. Cap DIN 5429 max max -0.25 -0.2 E8 min da ra max
Shaft Des. Dimensions (mm) Mounting Suitable Inner Ring*Dia. Des. to Bearing w/ Des. to F
WD D
1D
2C C
1C
2d
Wr
sDimensions d F B
mm DIN 5429 Ret. Cap DIN 5429 max max -0.25 -0.2 E8 min da
TN=Plastic cage, permissible operating temperature: 120°C (continuous operation).*Inner rings and snap rings must be ordered separately.
Shaft Designation Dimensions (mm) Mounting Dimensions Suitable Inner Ring Snap Dia. for oil for grease FW D C C1 dW rs C2 D1 da ra d F B Rings* mm lub. lub. -0.25 E8 min -0.5 max Des.
Series NXfor oil lubrication
Series NX..Zfor grease lubrication
Mounting DimensionsSnap Ring in Outer Ring
CAM FOLLOWERS
STUD YOKE
Bearing OD Shaft/Stud Bearing ODStandard Crowned - Metric Standard Straight Shaft Standard Metric Crowned
Standard Cylindrical - Imperial Eccentric Bush Cylindrical Metric (X)eg. KRE, NUKRE, CFE eg. NUTR - X
Stud type cam followers consist of a thick walled outer ring, a high tensilestrength solid threaded stud and cage guided or full complement rolling ele-ments.
Stud type cam followers are supplied as standard with a crowned outsidediameter to prevent edge loading. They are also available with a cylindricaloutside diameter which is indicated by the suffix X (see note).
These cam followers are easily secured in their application by the threadedstud.
Nuts, grease nipples, and dust caps are also available for use with stud typecam followers and should be requested when ordering if required.
Note:
Cam followers are also available with eccentric collars to allow adjustment for wear compensation(Suffix E).
4 CF64 CFE64 4.0000 1.5000 2.250 0.118 5.781 3.500 0.750 1-1/2-12 1.500 0.250 0.125 0.031 1.5000 1.5005 2.281CFC64 CFCE64 4.0000 1.5000 2.250 0.118 5.781 3.500 0.750 1-1/2-12 1.500 0.250 0.125 0.031 1.5000 1.5005 2.281*For crowned outside diameter, add suffix �Y�, e.g. CF36Y. For sealed version, add suffix �PP�, e.g. CF36PP.**For crowned roller outside diameter, a tolerance of 0 to -0.002" applies.Sizes CF(C)(E)40 and CF(C)(E)44 have UNS instead of UNF thread.
CF*,CF..PP*
Imperial Sizes:Cage Guided andFull Complement;With and WithoutSeals.
CFE*,CFCE*
CFC*,CFC..PP*
CF..SK
Cam Follower Dimensions Mounting DimensionsRoller Part No.*Part No.* R.D.** Stud D. R. W. Corner Length Stud Loc. UNF Thread Lubr. Holes Distance Stud Housing ClampDia. D inch d inch C inch Radius B nom Length B2 Thread Length M nom M1 nom C1 nom Diameter Dia.Inch +0.0000 +0.0000 +0.0000 r nom inch B1 nom nom G G1 inch inch inch inch inch inch d2 inch
F=Raceway diameter of inner ring.Fw=Needle roller enveloping circle in the tolerance zone F6.
NEEDLE ROLLER BEARINGS Yoke Type Cam FollowersRSTO, RSTO..X, STO, STO..X
Metric
Yoke type cam followers consistof a thick walled outer ring andeither a cage guided of full com-plement set of rolling elements.These rolling elements can be ei-ther needle rollers or cylindricalrollers.
Yoke type cam followers are sup-plied as standard with a crownedoutside diameter to prevent edgeloading. They are also availablewith a cylindrical outside diameterwhich is indicated by the suffix X.
Yoke type track rollerNA22...2RS withoutaxial guidance, sealed
Yoke type track rollerNATR with axialguidance by washers
Yoke type track rollerNUTR with axialguidance by rollingelements, fullcomplement
RSTO
STO
RSTO..X
STO..X
Without Axial GuidanceSeries RSTO, RSTO..X, STO, STO..X
Dimensions (mm)O.D.Without With D d F* B C E rsmm Inner Ring Inner Ring FW min
1) F = raceway diameter of inner ring.Fw = needle roller enveloping circle in the tolerance zone F6.2) The basic load ratings C and C0 apply if the bearing outer ring (with cylindrical outside surface) is mounted in a housing bore with the normal ro
NEEDLE ROLLER BEARINGS Yoke Type Track RollersRNA, RNA..X, NA, NA..X
Without Axial GuidanceSeries RNA, RNA..X, NA, NA..X
Without With Dimensions Basic Load Ratings2) LimitingO.D. Inner Ring Mass Inner Ring Mass D d F1) B C rs r1s D1 Track roller Speed3)
Designation g Designation g Fw dyn. stat. dyn. stat. nGC C
NATV50 NATV50PP 50 90 32 30 1.1 0.6 76*The suffix X indicates a cylindrical outside surface e.g. NATR5X or NATR5PPX.
NUTR*
NUTR..X
NATR*
NATV*
NATR..PP
NATV.PP
Without Axial GuidanceSeries NATR, NATV, NATR..PP, NATV..PP
Without Axial GuidanceSeries NUTR, NUTR..X
Dimensions (mm)O.D. Designation* Designation* d D B C rs r1s d1mm min min
Page 1.143Motion Technology
Roller Part No.* I.D. I.D. R.Dia** R. Width Width Shaft Dia.-Slip Fit Shaft Dia.-Press Fit Dia.Dia. d inch d inch D inch C inch B inch inch inch inch inch d1 inchnom min max +0.0000 +0.000 +0.005 max min max min mininch -0.0010 -0.005 -0.010
*For crowned outside diameter, add suffix �Y�, e.g. RF36Y. For sealed version, add suffix �PP�, e.g. RF36PP.**For crowned roller outside diameter, a tolerance of 0 to -0.002" applies.
NEEDLE ROLLER BEARINGS Yoke Type Cam FollowersRF, RFC, RF..PP, RFC..PP
Inch
Series RF Series RFC SeriesRF..PP
RFC..PP
Cam Follower Dimensions Mounting Dimension in inch Clamp
When operating against a flat raceway or a cam plate, the effective load ratings CW and Cow and the limiting radial loads Fr and For must be used
due to the elastic deformation of the outer ring. With track rollers where Fr perm < Cw, the dynamic loading may not be greater than Fr perm.
Page 1.146 Motion Technology
LR50..NPPU LR52..KDDU LR53..KDDU∅ 5 to 40 LR52..KDD LR53..KDDLR..E KDDU LR52..NPPU LR53..NPPU∅ 12 to 30 ∅10 to 40 ∅ 12 to 40
Double row track rollers with thick-walled outer ring and without filling slotsare suitable for taking axial loads inboth directions. When the bearings areused normally as track rollers (in directcontact with a flat raceway or camplate), the effective load ratings Cw or
Cow must be used. The effective loadratings take into consideration thebending stress and elastic deformationof the outer ring under load and the re-sulting load distribution in the bearing.
Relubrication facility through the innerring. The grease must be pressed inslowly otherwise the sealing ring maybe damaged (applies to LR..NPPUonly).
Bearings with spherical outside surfacehave the suffix U.
Dimensions in mm/inch grease dyn. stat. dyn. stat.Mass lubrication C Co Cw Cow Fr perm For perm
D B B1 d F r rmin kg/lb min-1 N lbf N lbf N lbf N lbf N lbf N lbf
LR 52..KDDULR 53..KDDU
LR 50..NPPULR 52..NPPULR 53..NPPU
LR..KDD(U): sealing shields on bothsides.LR..NPPU: contact seals on bothsides.Tolerances to DIN 620, toleranceclass PN except for the sphericaloutside diameter D -0,05. Radialinternal clearance CN to DIN 620.
Series LR..E KDDU has an increasedload carrying capacity due to thegreater number of balls. This is madepossible by means of separate innerrings, which must be securely clampedtogether when the bearing isassembled.Bearings of this series have a radialinternal clearance C3 to DIN 620. Whenassembled with a shaft to tolerance m6,this gives a normal operating clearance.Lubrication: lithium base grease to DIN51825 - K 3 N.Sealing: sealing shields.
Page 1.147Motion Technology
NEEDLE ROLLER BEARINGS Double Row Yoke Type Track Rollers
* When operating against a flat raceway or a cam plate, the effective load ratings Cw and Cow and the limiting radial loads Fr and For must beused due to the elastic deformation of the outer ring. With track rollers where Fr perm <Cw , the dynamic loading may not be greater than Fr perm.
Page 1.149Motion Technology
NEEDLE ROLLER BEARINGS Drawn Cup RollerClutches HFZ, HFLZ
InchINA Shell Type Roller Clutches, Series HFZ
Shell type roller clutches of series HFZ consist of a thin-walled drawn cup with ramps on the inside, a plastic cagewith stainless steel springs and needle rollers. The rampconfiguration is designed to minimize friction in theoverrunning mode and backlash angle during engagement.The plastic cage ensures precise positioning and guidingof the needle rollers, which act as wedging elements.
The separate support needed to handle radial loads is bestprovided by placing INA shell bearings on each side of byutilizing a shell type roller clutch with integrated bearingsupports, series HFLZ. If a support is needed on only oneside, it should be placed in the loaded area.
INA Shell Type Roller Clutches, Series HFLZ
INA shell type roller clutches series HFLZ have low integralsupport bearings. The support bearings are arranged oneither side of the clutch unit and handle radial loads. Thesupport bearings consist of needle rollers retained by plasticcages.
The same design features as described for series HFZ applyfor the clutch portion.
SeriesHF,HFZ
1/4 HFZ040708* 0.2500 0.4375 0.500 0.2500 0.2495 0.4370 0.4380 SCE443/8 HFZ061008 0.3750 0.6250 0.500 0.3750 0.3745 0.6245 0.6255 SCH681/2 HFZ081208 0.5000 0.7500 0.500 0.5000 0.4995 0.7495 0.7505 SCH875/8 HFZ101410 0.6250 0.8750 0.625 0.6250 0.6245 0.8745 0.8755 SCH103/4 HFZ121610+ 0.7500 1.0000 0.625 0.7500 0.7495 0.9995 1.0005 SCE126* This size is also available with plastic springs, HFZ040708KF, for a maximum operating temp of +60øC (+140øF)+ Check for availability
Roller Clutch Dimensions Mounting Dimensions in inch Shell BearingShaft Part No. I.D. O.D. Width Shaft Dia. F Housing Dia. G Radial LoadDia. FW nom D nom C inch inch inch inch inch Support
1) The limiting speeds are valid for both grease and oil lubrication.2) Limiting speed for rotating shaft.3) Limiting speed for rotating outer ring.4) Drawn cup roller clutches with plain bearings (up to 6 mm shaft diameter). During operation, the product of the actual speed in and radial load Fr may not exceed the limiting load/speed value (Fr . n)max given in the table. Otherwise, the application limits are determined by the limiting speeds or the permissible radial load.5) Drawn cup roller clutches with roller bearings (from 8 mm shaft diameter).
SL04300 25.50 300 380 95 94 83.2 374.0 6.3 1.0 3.0 75.0 75.0 71 328.5 346 900.0 2260 950 550 WRE380 380x61) For bearings sealed on one side (contact seal): suffix �P�, e.g. SL04 5026P. 4) Not supplied by INA. For bearings sealed on both sides (contact seal): suffix �PP�, e.g. SL04 5026 PP. 5) For snap ring series WRE.2) For bearings with contact seals with the suffixes �P� or �PP�, 6) For retaining rings to DIN 471. only 40% of the values given in the table is permissible.3) Must be ordered separately.
NEEDLE ROLLER BEARINGS Cylindrical Roller Bearingswith snap ring grooves
SL 18 18, SL 18 22, SL 18 29, SL 18 30
Shaft Designation1) Mass Dimensions Mounting Dimensions Basic Load Limiting Reference Snap ring Retaining ringDia. Ratings speed2) speed WRE3) to DIN 4714)
d D B C C1
D1
m rs
t x Ca1
5) Ca2
6) d1
d2
dyn. stat. nG
nB
C C0kg +0.2 min. -0.2 -0.2 kN kN min-1 min-1
SL04 50SL04
SL04 50..PSL04..P
SL04 50..PPSL04..PP
Mountingdimensions
Page 1.156 Motion Technology
Page 1.157Motion Technology
SLEWING RINGS
Series M .................................................................................... 1.158Series H and T .......................................................................... 1.158Series R ..................................................................................... 1.159Series D..................................................................................... 1.159Series TR ................................................................................... 1.160Special Designs ........................................................................ 1.160
BSC State Office NSW (02) 9824 2100 VIC (03) 9560 3222 QLD (07) 3260 6888Phone Numbers: SA (08) 8349 8388 TAS (03) 6272 4344 WA (08) 9337 3000
Gearless designs as well asinternal and external gearing.
Features
Greatest static capacity given same unit size.High degree of stiffness and rigidity.
Requires stringent mounting structure precision.
SPECIALDESIGNS
4 Point ContactSingle Row Ball �V� Groove
Raceway
FEATURESProvides very low and consistent turning torque.
APPLICATIONS� Manually rotated turntables
� Automated storage equipment
2 PointAngular Contact,
Single and Double Row Ball
FEATURESDesigned to operate at high speeds and thru hardened.
APPLICATIONS� Oil well drilling tables� High speed turntables
Single RowTapered Crossed
Roller with Alternating Axis
FEATURESPreloaded to enhance stiffness and rigidity.
APPLICATIONS� Cranes and excavators
� Welding positioners� Tunnelling shields
Single Row Ball,2 Point Contact
Pure Thrust or Radial Axis
FEATURESMaximum capacity to given thrust or radial axis.
Low torque.APPLICATIONS
� Large turntables� Radar
� Communication Antennae
PRECISIONBEARINGS
Virtually any style of AVON BEARING can easily bemodified to meet higher precision levels....
� Gearing to AGMA Class 10� Minimal axial and radial runout� Preloaded to enhance stiffness� Precision ground mounting surfaces
Turntables
BSC has a range of Turntable Bearings available.Contact your nearest BSC branch for details.
Page 1.161Motion Technology
WIR 200 Series Housing Summary ................................... 1.162aWIR 200 Series Bearing Summary .................................... 1.162bPillow Blocks (2-Bolt): Cast Iron: UCP 200 LIGHT PILLOW BLOCK 2 BOLT SET SCREW BEARING ............1.163 UCP X00 X(USA) PILLOW BLOCK 2 BOLT SET SCREW BEARING ..........1.164 UCP 300 MEDIUM PILLOW BLOCK 2 BOLT SET SCREW BEARING .........1.165 UKP 200 LIGHT PILLOW BLOCK 2 BOLT ADAPTOR BEARING ...............1.166 UKP X00 X(USA) PILLOW BLOCK 2 BOLT SET SCREW BEARING ..........1.167 UKP 300 MEDIUM PILLOW BLOCK 2 BOLT ADAPTOR BEARING ............1.168 EWP 200 MEDIUM PILLOW BLOCK 2 BOLT ECCENTRIC BEARING ..........1.169 Normal Duty: UCSB2 LIGHT SAW BENCH 2 BOLT SET SCREW BEARING ................1.170 UKSB2 MEDIUM SAW BENCH 2 BOLT ADAPTOR BEARING ................1.171 UCSBX X(USA) SAW BENCH 2 BOLT SET SCREW BEARING ..............1.172 UKSBX X(USA) SAW BENCH 2 BOLT ADAPTOR BEARING .................1.173 Short Base: UCPA 200 COMPACT 2 BOLT TAPPED BASE SET SCREW BEARING ........ 1.174 Pressed Steel: PB, RPB PRESSED STEEL PILLOW BLOCK WITH RUBBER INSERT .........1.175 PBS ADJUSTABLE BASE PRESSED STEEL EN/UB BEARING .........1.176Flanged Units: 4 Bolt Square - Cast Iron: UCF 200 LIGHT FLANGED o 4 BOLT SET SCREW BEARING ................1.177 UCF X00 X(USA) FLANGED o 4 BOLT SET SCREW BEARING ..............1.178 UCF 300 MEDIUM FLANGED o 4 BOLT SET SCREW BEARING ............. 1.179 UKF 200 LIGHT FLANGED o 4 BOLT ADAPTOR BEARING ...................1.180 UKF 300 MEDIUM FLANGED o 4 BOLT ADAPTOR BEARING ................1.181 EWF 200 LIGHT FLANGED o 4 BOLT ECCENTRIC BEARING .................1.182 4 Bolt Round - Cast Iron: UCFC 200 LIGHT FLANGED m 4 BOLT SET SCREW BEARING ................1.183 UCFC X00 X(USA) FLANGED m 4 BOLT SET SCREW BEARING ..............1.184 UKFC 200 LIGHT FLANGED m 4 BOLT ADAPTOR BEARING ...................1.185 Pressed Metal Housing (2-Bolt, 3-Bolt): MST, MS PRESSED METAL UB/EN NARROW BRG (MSm),(MST ) 1.186 2 Bolt Hole - Cast Iron: UCFL 200 LIGHT OVAL 2 BOLT SET SCREW BEARING ....................1.187
BALL BEARING UNITS
BSC State Office NSW (02) 9824 2100 VIC (03) 9560 3222 QLD (07) 3866 8300Phone Numbers: SA (08) 8349 8388 TAS (03) 6272 4344 WA (08) 9337 3000
Page 1.162 Motion Technology
2 Bolt Hole - Cast Iron: UKFL 200 LIGHT OVAL 2 BOLT ADAPTOR BEARING .......................1.188 LF, UBLF 200J NARROW OVAL 2 BOLT UB BEARING (NONGREASABLE) ..1.189 ENLF 200J NARROW OVAL 2 BOLT EN BEARING (NONGREASABLE) ..1.190 Special Flanged Units: UCFA 200 LIGHT OVAL 2 BOLT SET SCREW BEARING ....................1.191 UCFK 200 OFFSET FLANGE 3 BOLT SET SCREW BEARING ...................1.192Take up Units: Cast Iron: UCT 200 LIGHT TAKE UP SET SCREW BEARING ..............................1.193 EWT 200 LIGHT TAKE UP ECCENTRIC BEARING ...............................1.194 UKT 200 LIGHT TAKE UP ADAPTOR BEARING ..................................1.195 Pressed Metal: MSTU PRESSED METAL TAKE UP UB/EN NARROW BEARING ........1.196Hanger Unit - Cast Iron: UCEH 200 LIGHT HANGER SET SCREW BEARING ...............................1.197Cartridge Type - Cast Iron: UCC2 LIGHT CARTRIDGE SET SCREW BEARING ...........................1.198 UKC2 LIGHT CARTRIDGE ADAPTOR BEARING ..............................1.199Bearing Inserts: Spherical O/D Selection Guide WITH DRAWINGS ...........................................................1.200 UC2 LIGHT WIDE SERIES GREASABLE SET SCREW LOCK ............1.201 UCX X(USA) WIDE SERIES GREASABLE SET SCREW LOCK ..........1.202 UC3 MEDIUM WIDE SERIES GREASABLE SET SCREW LOCK .........1.203 UB2 NARROW SERIES NONGREASABLE SET SCREW LOCK ...........1.204 EW2 LIGHT WIDE SERIES GREASABLE ECCENTRIC LOCK .............1.205 EN2 NARROW SERIES NONGREASABLE ECCENTRIC LOCK ............1.206 UR2 LIGHT WIDE AND NARROW CYLINDRICAL OD .....................1.206a ENR2 LIGHT WIDE AND NARROW CYLINDRICAL OD .....................1.206b UK2 LIGHT WIDE SERIES GREASABLE ADAPTOR LOCK ...............1.207 UKX X(USA) WIDE SERIES GREASABLE ADAPTOR LOCK .............1.208 UK3 MEDIUM WIDE SERIES GREASABLE ADAPTOR LOCK ............1.209 CS-(173) LIGHT BALL SPHERICAL OD (NON-LOCKING) .....................1.22RHP - Silver Lube PLASTIC HOUSINGS STAINLESS BEARING ............................1.210Disc Harrow Brgs SQUARE & ROUND BORE - SPHERICAL & FLAT OD.............1.216Dodge Pillow Blocks, Flanged Units & Bearings .............. 1.220
BALL BEARING UNITS
BSC State Office NSW (02) 9824 2100 VIC (03) 9560 3222 QLD (07) 3866 8300Phone Numbers: SA (08) 8349 8388 TAS (03) 6272 4344 WA (08) 9337 3000
Page 1.162aMotion Technology
NSK 200 Series Wide Re-greasable UnitsNSK 200 Series Wide Re-greasable UnitsNSK 200 Series Wide Re-greasable UnitsNSK 200 Series Wide Re-greasable UnitsNSK 200 Series Wide Re-greasable Units Shaft Bearing Diameter Series inch mm
Standard (200) Standard (1000) Triple Lip Seal (1000) Aligns Grease Track
NSK -RHP 200 Wide Series Re-greasable Insert Bearings (Superior Seals)
(T) (T)
Notes: 300, X Series housings and RHP housings are available. Limiting speeds apply depending on shaft tolerance.If RHP product is to be used in Japanese standard housings, the bearing Part Number is prefixed �J�.
Shaft NSK Wide 200 Series Adaptor RHP Wide 200 Series F/Outer RingDiameter Sleeve
inch mm (Use withUK Bearing)
Set Screw Eccentric Adaptor Set Screw Eccentric Eccentric
BALL BEARING UNITS WIR Bearing SummaryNSK 200 Series
Note: To obtain the shaft diameter in fractions, the second figure in the above unit numbers is the diameter in sixteenths of an inch.Example: For Unit No UCPX16-51, the shaft dia is 3-3/16 inches.
BALL BEARING UNITS Pillow Blocks - Cast IronUCPX 00, UCP300
Unit Shaft Bearing Dimensions in mm Bolt Hous ApprNo. Diameter No. H A E B S1 S2 G W Bi N Size No. Wt. mm inch mm Kg
Standard Pillow Blocks: UCPX 00with Set Screws
Shaft Diameter: 60-101.6mm
Standard Pillow Blocks:UCP 300
with Set ScrewsShaft Diameter:20.638-55.562
Part No. Example: For Bearing UC X15 Order Complete Unit UCP X15
Unit Shaft Bearing Dimensions in mm Bolt Hous ApprNo. Diameter No. H A E B S1 S2 G W Bi N Size No. Wt. mm inch mm Kg
BALL BEARING UNITS Pillow Blocks - Pressed SteelPB, RPB
Stamp Shaft Bearing Numbers Dimensions in mm LR LS RubberSize Dia. EN UB A B E F G H J K N O S T kgf RPM Insul
inch mm
RPB
PB
The PB type pillow block is designed for light-duty applications to provide the advantages of ball bearings at low cost. The unitconsists of a two-piece separable steel housing with spherical bearing seat. This allows the spherically-ground bearing initial self-alignment in all directions. The ball bearing is an EN 200 extended inner ring type with self-locking collar or UB 200 extended innerring with grub screw locking.
Part No. Example: For Bearing EN205-14 Order Stamping 52PB
Part No. Example: For Bearing EN205-16 Order Stamping 62RPB Order Insert T20661-3
Stamp Shaft Bearing Numbers Dimensions in mm LR LSSize Dia. EN UB A B E F G H J K N O S T kgf RPM
inch mm
The RPB type pillow block has the same construction as the PB type, but has a thick, electric-conductive rubberinterliner. Bearings in the RPB unit are designated as EN 200 extended inner ring type with self-locking collar.
* Thrust Rating is 20% of Radial Rating.A complete PBS unit consists of PBS stamping, MST flangette and EN/UB Bearings with collar.OTHER BEARING SIZES AND TYPES AVAILABLE ON REQUEST.
Recommended shaft tolerance -: Up to 50mm(2")dia. inclusive Nominal
BALL BEARING UNITS Pillow Blocks - PressedSteel
PBS
Stamp Shaft Bearing Number Flange Dimensions in mm Radial* BrgSize Dia. No. A B1 B2 C D E F G H J K L M N P R Load Limit
inch mm Rating Speed kg/lbf RPM
Part No. Example: For Bearing EN204-14 Order Stamping 47PBS Note: EN = Eccentric Locking Collar UB = Set Screw Locking
Note: Pressed Steel covers are also available. Please contact any BSC Branch near you for details.
Take Up UnitsUKT 200 + H
with AdapterShaft Diameter:
53.975 - 76.200mm
Part No. Example: For Bearing UK 208 Order Complete Unit UKT 208 + H2305
(to fit 35mm shaft)
Unit Shaft Diameter Bearing Dimensions in mm Hsg Approx No. mm inch No. O G P Q S B K E A W J l H L No. Wt.
Kg
Page 1.196 Motion Technology
BALL BEARING UNITS Take Up Unit-Pressed Metal: MSTU
Stamp Shaft Bearing Number Flng�t Dimensions in mm Bolt LR** LSSize Size No. Size kgf/lbf RPM
inch mm A B C D E F H J K L mm
The MSTU Pressed Steel Take-Up Unit is a light duty,economical, easy to mount unit for adjusting shafts andbelt tightening devices on many types of conveyors andelevators. It is adaptable to either guide type or bolttype methods of mounting.
The new design of bearing seat incorporated in the baseplate is made to a looser than normal fit to ensure bearingself-alignment without loosening the flangette bolts. This
assures self-alignment of the bearings, if the two take-up units are not pulled up evenly.
The MSTU Take-Up Unit incorporates an EN/UBseries wide inner ring bearing.
A complete MSTU Take-Up Unit consists of MSTUbase plate, MST flangette, and EN/UB bearing.
Part No. Example: For Bearing EN205-16 Order Stamping 52MSTU Note: EN = Eccentric Collar Locking
Part No. Example: Bearing to suit 2 inch shaft, order: UK 311 + HE2311
Bearing Shaft Diameter Dimensions in mm Basic Load Ratings Wt Adapter Dimensions in mmNumber mm inch d D Bi Be Dyn Stat kg No. L Y W
C Co
Page 1.210 Motion Technology
BALL BEARING UNITS
INTRODUCTION
The new RHP Silver-Lube series is a range of corrosion resistantbearing units specifically for use in industries where frequentthorough washdowns are necessary, optimum hygiene stand-ards are required and good chemical resistance is important overa wide temperature range.
The units are available in pillow block, two bolt and four bolt flangeconfigurations and are capable of accommodating initial misalign-ment from mounting errors. In operating the units have provenreliability in the most hostile applications. Relubrication is possi-ble for long trouble-free life - minimising maintenance, maximis-ing productivity and helping maintain hygiene standards.
Silver-Lube housings are made from Valoxâ 420 thermoplasticresin which in addition to being non-corrodable is resistant todetergents and a wide range of chemicals. The housings arepaint and coating free which prevents chipping or flaking andhave smooth surfaces to assist thorough washdowns. The hous-ing material also demonstrates fungicidal resistance.
Silver-Lube bearing inserts are made from stainless steel, areprovided with effective, efficient sealing arrangements, and arecharged with a USDA H1 approved food grade grease as stand-ard.
Full technical specifications, application details and descriptionsof the Silver-Lube range are provided within this document.
RHP-Silver Lube
n Corrosion Resistant Unitsn Stainless Steel Bearing Insertsn Effective, Efficient Sealingn Food Grade Grease Approved to USDA H1n Wide Operating Temperaturen End Covers Available
Stainless Steel
n Grease nipplen Bolt hole linersn Set screwsn Flingern Seal coren Bearing rings, cage and balls
Withstands FrequentWashdowns Resisting
n Corrosionn Detergentsn Chemicalsn Fungicides
ThermoplasticMoulded Housingn No coatingn No crackingn No peeling
RHP Shaft Basic Housing L H H1 H2 J N N1 G A A1 B S WeightDesignation Dia. Insert Group (kg)
Silver LubeSeries PNP, PSF, PSFT
UNIT DIMENSIONS
Silver-Lube mounting details are interchangeable withthe traditional RHP Self-Lube range. Some non-criticaldimensions do, however differ, see tables below.
RHP Shaft Basic Housing L H J G A A1 A4 B S Wt.Designation Dia . Insert Grp kg
RHP Shaft Basic Housing L J G A A1 A4 B S Wt.Designation Dia. Insert Group kg.
Housing End Cover Dimension Dimension DimensionGroup Reference D1 D2 L
END COVERSPolypropylene end covers areavailable to fit all Silver-Lubehousings. End covers can beused at temperatures rangingfrom -20°C to +90°C. Theymay be used as additionalprotection for the bearing inadverse environmentalconditions as well as an aid tomeeting safety requirements.
Page 1.212 Motion Technology
BALL BEARING UNITS Silver Lube Housings
Silver-Lube housings are manufactured from Valoxa® 420, a high quality, 30% glass filled thermo-plastic polyester resin which has excellent strength, rigidity, dimensional stability and chemicalresistance.
HYGIENESilver-Lube housings are non-corrodable and are paint and coating freeto prevent chipping and peeling. The smooth surfaces resist dirt, mouldand bacterial making Silver-Lube units ideal for use in industries wherecleanliness is paramount.
In tests in accordance with ASTM G21-70, Valoxa® resins have demon-strated fungicidal resistance to:
In general, Silver-Lube housings have excellent resistance to a widevariety of chemicals. In very generalised terms resistance by chemicalcategory can be summarised as:
Chemical Category Performance
Acids ExcellentBases Good to LimitedOrganic Solvents Excellent to FairKetones and Esters Fair to LimitedChlorinated Solvents Excellent to LimitedSalts ExcellentAutomotive Media Excellent to Fair
More detailed results from testing Valoxa® 420 resin in various mediaare listed in the adjacent table. This data describes exposure to a spe-cific chemical under specific time, temperature and concentration situ-ations, but not in combination with other chemical agents or environ-mental factors. It is therefore important that the user assess each appli-cation with regard to combined chemical exposures and environmentalconditions.
Chemical Resistance of Valoxa® 420(All data expressed in terms of % retention of tensile strength)
xx = brittle
ImmersionMedia Days Temp °C %
ACIDS10% Hydrochloric Acid 30 25 89
90 (77°F) 8510% Sulfuric Acid 30 25 97
90 9436% Sulfuric Acid 30 25 97
90 9730 60 8490 (140°F) 60
10% Acetic Acid 30 25 8890 88
BASES5% Potassium Hydroxide 30 25 88
90 1010% Sodium Hydroxide 30 25 xx
90 xx10% Ammonium Hydroxide 30 25 96
90 87
SALTS10% Zinc Chloride 30 25 97
90 9410% Calcium Chloride 30 25 98
90 985% Sodium Chloride 30 25 97
90 97
ORGANIC SOLVENTSEthyl Alcohol 30 25 99
90 96Methyl Alcohol 30 25 91
90 82Isopropyl Alcohol 30 25 100
90 100IPA-Water(50/50) 30 25 98
90 97
GENERAL AND AUTOMOTIVEHeptane 30 25 99
90 99Acetone 30 25 86
90 74Methylethylketone 30 25 90
90 80Ethyl Acetate 30 25 96
90 86Methylene Chloride 30 25 54
90 54Ethylene Glycol 30 25 100
90 100Motor Oil 30 25 100
90 10030 121 9690 (250°F) 63
The reported values are typical values only - they do not directly applyto the manufactured housings but to the Valox 420 resin itself.
Silver-Lube housings are suitable for use in applications wherefrequent washdowns occurs. After continuous immersion in water,Valox 420 resins exhibit very little loss of strength at water tem-peratures up to 150°F(65°C). Higher temperatures may be en-dured on an intermittent basis, but are not recommended forcontinuous use due to the associated loss of housing strength.See graph 1.
Silver-Lube housings are not recommended for prolonged im-mersion or extended exposure to water vapour. In applicationswhere prolonged water vapour exposure occurs some loss ofhousing strength may result. For more information please con-tact NSK-RHP.
ULTRAVIOLET RESISTANCE
Valox 420-1001 (natural coloured) resin has been tested for re-sistance to ultraviolet ageing by exposure to direct sunlight inFlorida and in Arizona for five years.
Valox 420-1001 retained approximately 75% of its original strength,toughness and flexibility after five years of Florida and Arizonaexposure.
HEAT RESISTANCE
The operating temperature range of Silver-Lube Valox 420 resinhousings is -20°C to +90°C.
Higher temperatures may be endured for short periods, for ex-ample during cleaning. However, where peak temperatures ex-ceed +100°C for an extended period please contact NSK-RHP.
The maximum housing loads published in this catalogue arebased on tests conducted at 20°C. The tensile strength of Valox420 resin varies with temperature, see graph 2, above.
Designers and end users must ensure that housing strength isadequate at the unit operating temperature by adjusting the pub-lished housing strength at 20°C, detailed in Tables 8, 9 and 10 byusing the �Housing Temperature/Strength Factor� listed in Table7. For example, the maximum housing load for a bearing operat-ing at 40°C is 1.75 of the published maximum housing load at20°C.
When evaluating housing strength it is important to establish thebearing operating temperature and not to consider the ambienttemperature alone. Bearing operating temperature is depend-ant on ambient temperature and bearing load and speed. Forhigh speed applications bearing temperatures in excess of 60°Care not uncommon. Please consult NSK-RHP in case of diffi-culty.
Page 1.214 Motion Technology
BALL BEARING UNITS Silver Lube Housings
HOUSING STRENGTH
Housing load carrying capacity varies depending on the application loading regime,which may be intermittent, continuous or cyclic. Maximum housing loads are given inthe tables below. These loads must not be exceeded without prior consultation withNSK-RHP.
Published housing maximum load capacities do not allow for any reduction in housingstrength caused by exposure of the housing to chemicals, water, steam, heat, ultravio-let light or any combination of these factors. If any of these factors are present in theapplication the designer or end user must establish the effect of these exposures andreduce the published maximum housing load accordingly.
To maximise load carrying capacity it is recommended that washers are used with thefixing bolts. The tables below also detail maximum fixing bolt tightening torques.
Standard Bearing Ball Flinger Set Cage Rings Screw
Silver-Lube bearing inserts are manufactured from QD51, a modified 440C type stain-less steel, and are charged with Chevron Poly FM 2, a USDA H1 approved food gradegrease.
Bearing insert operating temperature range is -20°C to +90°C.
Component Materials
RHP Bore D C B S S1 r h M SS Cr (N) Cor (N) WeightDesignation Dia. kg.
Insert Designation, Dimensions and Weights
Basic ISO h7 ISO h9Bearing Bearing Shaft Tolerance Bearing Shaft ToleranceInsert Limiting (0.001 mm Units) Limiting (0.001 mm Units)
Speed High Low Speed High Low(RPM) (RPM)
J1020-20GCR M6 x 6.5 LONG 4J1020-3/4GCR M6 x 6.5 LONG 4J1025-25GCR M6 x 6.5 LONG 4J1025-1GCR M6 x 6.5 LONG 4J1030-30GCR M6 x 6.5 LONG 4J1030-1.3/16GCR M6 x 6.5 LONG 4J1030-1.1/4GCR M6 x 6.5 LONG 4J1035-35GCR M8 x 9.0 LONG 8J1035-1.1/4GCR M8 x 9.0 LONG 8J1035-1.7/16GCR M8 x 9.0 LONG 8
Shaft Tolerances and Permissable Speeds
RHP Designation Set Screw Max TighteningTorque (Nm)
Set Screw Tightening Torques
10 18 +18 018 30 +21 030 50 +25 0
Nominal Bore Bore Tolerance Diameter d (mm) (0.001 mm Units)
Over Including Max Min
Bore Tolerance
Bearing insert permissible speed is de-pendant on shaft tolerance.
For higher speed applications an ISO h7shaft tolerance is recommended. An ISOh9 shaft tolerance may be used for lowspeed applications. For more details,please see Table 13.
Set screws for Silver-Lube bear-ing inserts are manufacturedfrom stainless steel and can frac-ture if overtightened. The limit-ing set screw torques listed be-low should be exceeded.
Silver-Lube inner ring bore tolerancesare on the plus side of the nominal bore.This enables the bearing to slip freelyover standard shafting.
Page 1.216 Motion Technology
Square Bore
BALL BEARING UNITS Disc Harrow Bearings:Tri-Ply Seal Series
Tri-Ply Seal ball bearings are designed for environments where severe contamination ispresent such as agricultural tillage equipment. The new one-piece Tri-Ply Seals incor-porate a highly effective seal design molded to an exterior shroud cap to provideexeptionally effective protection against the loss of lubricant and the entrance of wet orabrasive contaminants. A seven piece Tri-Ply construction is standard on certain sizes.The shroud cap nests closely with the outside seal and helps protect the rubber sealmembers from wrappage and abrasion.
A feature of these bearings is their balanced design identified by deep races, largeballs and extra wide or heavy, shock-resistant inner and outer rings. The use of Tri-PlySeal bearings simplifies housing designs, and their extra inner ring width provides greatersupport on the shaft.
Bearing Type Bore Bore O.D. Ring Width Balls Wt.Number Fig. in. mm mm +.00-.13mm No. Size kg.
W C Inner Outer
Round Bore
Bearing Type Shaft Size O.D. Ring Width Ball WtNumber Fig. in. mm mm +.00-.13mm No. Size kg.
This series is designed to be used either for outer or inner ring rotation in low speed, moder-ately loaded applications, primarily in agricultural implements and conveyors. The main advan-tage of these bearings is ease of mounting; except for end-wise positioning by adjacent parts,no collars, set screws, or other locking devices are required to lock the inner ring to the hexshaft. The tolerances of the hex bores in this series are suitable for mounting on cold rolled hexshafting. These bearings utilize the R type Shroud Seal.
Bearing Type Hex Hex Bore O.D. Width F G Balls WtNumber Shaft A A B B mm +.000-.43mm No. Size kg
Size Across Across Across Across Wo W1 Flats Flats Corners Corners Outer Inner in. mm in. mm
BALL BEARING UNITS Dodge Pillow Blocks:SC, SCB and SCU Bearings
Bearing Weight D F H J MShaft Part Number (lbs) A B C Bolt G L R SSize SC SCB SCU SC SCB SCU Min Max Dia. SC SCB SCU SC SCB SCU SC SCB SCU
P2B
Part No. Example: P2B-SCU208-108FF
The DODGE PROGUARD Seal with Flingers (FF)
R
DODGE SC/SCM/VSC/SLmounted ball bearings use thefield proven PROGUARDTM
land-riding contact seal withsteel shield protection. Thishighly effective positive sealdesign assures uniform lipcontact with the inner ring toseal out contaminants and sealin lubricants.
On SC/SCM option flingerscan be added to form a tightlabyrinth with thePROGUARD seal and pro-vide additional seal protec-tion against contaminantsand trash.
SC (P) = Standard, SCB (P) = Low centre height, SCU (P) = Metric equivalent.Note: In SC206 series, specify SCU206 as metric equivalent.
BALL BEARING UNITS Dodge 4-Bolt Flange:SC Bearings
SC 4-Bolt Flange BearingsThe SC 4-Bolt Flange Bearing was designed for mounting on vertical or horizontal frames or supports. Itsgrey iron housing combines a pleasing appearance with rugged construction. Where space limitations areencountered, the 2-bolt units may be desirable. If considerable thrust loads exist, a shaft collar should bemounted next to the bearing.
Shaft Part FSize No. Wt. A B C D Bolt H J L N
Dia.
Precision Hardened and Honed Innerand Outer Rings
R
For wear resistance, quiet operationand long life.
Grade 10 Balls for quieter operation andless vibration.
Superior Locking Force
The DODGE SC/SCM/VSC/SL line uses65° spacing for setscrews. The unique65° design offers an optimum balancebetween locking force and inner ringstress.
Page 1.222 Motion Technology
BALL BEARING UNITS Dodge 2-Bolt Flange:SC Bearings
SC 2-Bolt Flange BearingsThe SC 2-Bolt Flange Bearing was designed for mounting on vertical or horizontal frames or supports. It isidentical to the 4-bolt style except for the bolt holes and housing configuration. The more compact 2-bolt styleis particularly suited where space limitations are a factor. If considerable thrust loads exist, a shaft collarshould be mounted next to the bearing.
The ball cage is made of heat sta-bilised nylon with 33% fill short fi-breglass reinforcement for addedstrength. The nylon material pro-vides a natural lubricity for longerlife. Fibreglass reinforcement al-lows higher operating tempera-tures than plain nylon, yet is more resistant to fatigue than metal-lic cages. Short fibreglass allows greater flexibility than steel ornormal fibreglass, especially under misalignment. That meanslonger life in mounted bearings where some degree of misalign-ment is unavoidably encountered.
Anti-Rotation Pin (SC/SCM)
An anti-rotation pin prevents ro-tation of the outer race within thehousing. Simple and effective,it makes system inserts easier toreplace. There is no need to re-move and replace grease fit-tings, location pins or other de-vices.
Page 1.223Motion Technology
BALL BEARING UNITS Dodge E-Z KleenPillow Blocks
E-Z KLEEN Corrosion Resistant BearingWith Teflon or Nylon Coated Housings
DODGE E-Z KLEEN bearings are designed for thewet washdown environment of the food and chemi-cal industries. The coated housings and corrosionresistant inserts offer increased life over standard
units where washdown and exposure to the weatheroccur. They offer excellent non-stick properties thatare essential for the food industry duringwashdown.
Inserts - The domestically manufactured DODGE Cor-rosion Resistant E-Z KLEEN Bearing is installed in a
coated housing toproduce a depend-able rugged mountedunit. Corrosion resist-ant PROGUARD sealsand flingers provideadditional protectionfor washdown andchemical environ-ments. The 65° set-screw mounting pro-vides ease of installa-tion and excellentholding power. Thethin dense chromecoated inner race is
precision hardened to provide a hard surface for wearresistance and durability. The short fibreglass reinforcednylon cage is flexible and strong, providing long life andquiet operation. The through hardened thin densechrome coated outer race has an anti-rotation pin in thecircumference as added protection to prevent the insertfrom rotating in the housing under unbalanced load con-ditions.
R
Page 1.224 Motion Technology
in meat, poultry and seafood processing.)� Dairy Products� Bottling, Canning, Vegetable and Fruit Processing� Bakery and Confection� Cereal� Frozen Foods� Pharmaceutical� Cosmetic Industry
Lubrication - The E-Z KLEEN Corrosion ResistantBearings are lubricated with a FDA/USDA acceptable lu-bricant.
Available Configurations:E-Z KLEEN Corrosion Resistant Bearings are stocked instandard height pillow blocks and 4-bolt and 2-boltflanges. Other housing styles are available on a made-to-order basis.
Nomenclature:Each complete E-Z KLEEN Corrosion Resistant Bearingis designated by a 6-digit part number. There is a sepa-rate 6-digit number for each size and configuration.
For More Information:For more information about DODGE E-Z KLEEN Corro-sion Resistant Bearings with coated housings, consultyour nearest BSC branch.
Shaft A C D F M Size Other Pillow Blocks 4-Bolt 2-Bolt Pillow Take-inch mm Shaft Sizes Flanges Takeups min. max. Flange Flange Blocks Ups
+ Assemble to order
Housings - The one-piece grey iron housing is spe-cially machined to accommodate the Teflon or Nylon coat-ing and is designed to resist abrasion, chipping and flak-ing in acidic or caustic environments. The Teflon con-forms to FDA/USDA, and nylon conforms to USDA speci-fications for food contact.
Sealing - The DODGE PROGUARD Seal is a land-rid-ing, positive contact seal with corrosion resistant steelshield protection. The rubber seal lip is moulded as anintegral part of the steel shield. The highly effective land-riding design assures uniform lip contact with the groundO.D. of the inner ring. The nitrile rubber, especially com-pounded for minimum drag, provides full pillow blockspeed capabilities and outstanding wear characteristics.The corrosion resistant steel shield is mechanically an-chored into the bearing�s outer ring to resist blowout.
Flingers - Corrosion resistant flingers are mounted oneach side of the bearing inner ring immediately adjacentto the seals and act as deflectors and seal protectors.The flingers form a tight labyrinth with the seal providingadditional sealing, against ingress of water through theseal during pressure washdown and protection againstcontaminants and trash.
Shaft Mounting - The inner ring is locked to the shaftby two stainless steel setscrews spaced 65° apart. The65° setscrew angle provides an optimum balance betweenshaft holding power and inner ring stress.
Applications:� Meat processing and Packing. (Nylon is recommended for high pressure washdown
BALL BEARING UNITS Dodge E-Z KleenPillow Blocks
R
Page 1.225Motion Technology
BALL BEARING UNITS Dodge Unisphere II Pillow BlocksSpherical Roller Bearing
Pillow Block Bearing - Inch & Metric
R
� 2-bolt pillow blocks and 4-bolt flanged bearings 1-7/16�to 4�, 40 mm to 90mm.
� Same rolling elements and installation-ready features asthe s-2000 bearing.
� Ductile iron housing with 65 000 PSI tensile strength is92% the strength of steel.
� DODGE �R� Seal provides contacting lip protection,crimped to the outer race; maintains sealing effective-ness at maximum misalignment.
DIMENSIONALLY INTERCHANGEABLE WITH MOSTBALL BEARINGS
� Length through the bore� Base-to-centre height� Footprint
Approximately five times the rating of a ball bearing.
Page 1.226 Motion Technology
D E FShaft A B C Total Bolt G H J L M R SSize mm mm mm Min. Max. Exp. Dia. mm mm mm mm mm mm mm
BALL BEARING UNITS Dodge Unisphere II Pillow Block:Spherical Roller Bearing
Metric Unisphere II - Plummer Block - Part Numbers
Metric Unisphere II - Plummer Block - Dimensions (mm)�
SNA 200.............................................................................. 1.234 SNA 300.............................................................................. 1.235 SNA Sealing Arrangement ................................................ 1.236 SN 200 ................................................................................ 1.237 SN 300 ................................................................................ 1.238 SN 500 ................................................................................ 1.239 SSN 500.............................................................................. 1.241 SN 600 ................................................................................ 1.242 SD 3100 .............................................................................. 1.243 CSD 3100 ........................................................................... 1.244 AF 225 & SAF 226 ............................................................. 1.245 SAF 500 & SAF 600 ........................................................... 1.246SOLID HOUSINGS SERIES: SB 500 ............................................................................... 1.247 WB 500 .............................................................................. 1.248 WSB 500 ............................................................................ 1.249 TVN Series ........................................................................ 1.250 SN, SD & Solid Housing Sealing Arrangement .............. 1.251FLANGE HOUSINGS SERIES: FC 500 E ............................................................................ 1.252 FCM 500 ............................................................................ 1.253 RFS 500 ............................................................................. 1.254 CFCN 2220 ........................................................................ 1.255 TU 500-500 ........................................................................ 1.256 TH 500 ............................................................................... 1.257 THM 500 ............................................................................ 1.258
Page 1.229Motion Technology
PDN TWO-BEARING HOUSINGS: da 25-90mm ....................................................................... 1.259 da 95-120mm ..................................................................... 1.260DODGE: Bearing Units .................................................................... 1.261PLAIN BEARING UNITS: Light & Heavy Series ........................................................ 1.268COOPER SPLIT SERIES:Housing - Splits Pedestal Units ................................................................... 1.273 Flange Units ...................................................................... 1.277 Hanger Units ..................................................................... 1.278 Rod End............................................................................. 1.279 Seals .................................................................................. 1.281 22 Series ........................................................................... 1.282
HOUSINGS
BSC State Office NSW (02) 9824 2100 VIC (03) 9560 3222 QLD (07) 3866 8300Phone Numbers: SA (08) 8349 8388 TAS (03) 6272 4344 WA (08) 9337 3000
PagePage 1.230 Motion Technology
SEALING ARRANGEMENT SUFFIX
1. Std Felt Groove -2. �Z� Seal �Z�3. Triple Seal Vertical Labyrinth Collars:- i) Inch �TSE� ii) Metric �TSM�
4. Face Seal Horizontal Labyrinth Collars:- i) Inch �LSE� ii) Metric �LSM�
5. Face Seal and Wiping Lip Horizontal Labyrinth Collars:- i) Inch �LSE� Z ii) Metric �LSM� Z
6. Face Seal and Wiping Lip Horizontal Labyrinth Collars Grease Purge Sealing:- i) Inch �LSE� TAC ii) Metric �LSM� TAC
7. Triple Seal Combination Labyrinth Collar and Wiping Lip Grease Purge Sealing:- i) Inch �TSE� TAC ii) Metric �TSM� TAC
HOUSING SIZE
The first figure designates the series.
1. �500� Normal Duty2. �600� Heavy Duty
The last two figures designate the final twodigits of the Bearing Number.
BEARING AND ADAPTER SLEEVE
Selected Bearing from HousingTables with Adapter Sleeve.
Drilled Relief Hole no Slinger Disc. G.H.Housings supplied with Grease G.V.Relief Slinger Disc.Housings required with Oil Lubrication should be specified
CLOSED HOUSINGS SUFFIX
I.E 1 Side Open1 Side Closed �A�
OPEN HOUSINGS SUFFIX
I.E Both Sides Open �B�
SPLIT HOUSINGS
�SN� Medium Duty�SSN� Heavy Duty
Solid Base Undrilled�SD� Large Series for 231 Series
Bearings
NON-SPLIT HOUSINGS
�SB� Medium Duty Block�WB� Heavy Duty Block�FC� Square Flanged Housing�RFS� Spigot Flanged Housing
�CFCN� Spigot Circular FlangedHousing
�TH� Take-Up Housing
PREFIX BASE SECURINGBOLT HOLES
- �SN� Cast 2 Bolt Slot Standard - �SSN� Solid Base Undrilled T �SSN� 2 Bolt Hole Drilled F �SSN� 4 Bolt Hole Drilled
�SD� Cast 4 Bolt Hole Standard - �SSD� Solid Base Undrilled T �SSD� 2 Bolt Hole Drilled F �SSD� 4 Bolt Hole Drilled
HOUSINGS Designation Symbols: TBC Housings
* F S SN 511 A TS E GH SG 22211 K + H311
FOUR SOLID SPLIT SIZE CLOSED TRIPLE ENGLISH GREASE MATERIAL BEARING ADAPTERBOLT BASE PLUMMER HOUSING SEAL ENTRY HOLE NO. SLEEVE
SECURING BLOCK LABYRINTH (INCHES) NO.COLLAR
PREFIX BASIC HOUSINGDESIGNATION
* THIS SEQUENCE OF DESIGNATING SHOULD BE FOLLOWED WHEN ORDERING T.B.C. TRANSMISSION HOUSINGS.
The above housings are applicable to both adapter mountings SNA500-SNA600 using K type taper bore bearings and SNA200-SNA300 usingparallel bore bearings.For SNA200/SNA300 adapter sleeve is not required. Standard housings are available in cast iron. SG Iron and steel housings to order.
Housing No. H A E B B1 S1 S2 G W L d1 d2 J F C d3 Bolt Dia. E12 B. 4 B
Cylindrical Bore MountingSNA 219 - SNA 232SNA 308 - SNA 320
HOUSINGS SNA Sealing Arrangement
Adapter Mounting (Taper Bore Bearings)SNA 505 - SNA 532 SNA 605 - SNA 620
U-Lok Seal - USPLIT LIP SEAL
Labyrinth Seal - TSHIGH SPEED SEAL
Taconite Seal - TACTHE ULTIMATE SEAL
Closing Plate - ATA
Cylindrical Bore MountingSNA 205 - SNA 218
V Ring Seal - TA Felt Seal - TC V Ring Seal - TA
V Ring Seal - TA�STANDARD� SEAL
� Suits both Metric & Imperial shafts� Does not wear shaft� Max Temperature = 110 °C� Speed = Low to High
� Only available for Metric shafts� Split construction, easy to fit� Requires good shaft finish� Lubricate between lips on assembly� Max Temperature = 110 °C� Speed = Low to High
� Not recommended for low speed or wet applications� Gives maximum speed capacity� Gives maximum temperature capacity� Must be lubricated on assembly
� Best seal in all applications� Maximum temperature = 110 °C� Speed = Low to High
Note: Refer to Table on page 1.231 for Seal part number examples.
Unless specified �B� type open housings supplied. One housing per set should include spacer rings.
HOUSINGS
Unit Shaft Dia. Dimensions (mm) Bolt Dia. Bearing No. Adapt. Sleeve No. Spacer Ring HSG Wt. (Kg.) No. d H A E B S1 S2 G W L L1 L2 Z X E1 2 B. 4 B. Self Al. Spher. Metric Inch No. Q SN SSN
Unless specified �B� type open housings supplied.One housing per set should include spacer rings.
HOUSINGS
Unit Shaft Dia. Dimensions (mm) Bolt Dia. Bearing No. Adapt. Sleeve No. Spacer Ring HSG Wt. (Kg.) No. d H A E B S1 S2 G W L L1 L2 Z X E1 2 B. 4 B. Self Al. Spher. Metric Inch No. Q SN SSN
Unit Shaft Dia. Dimensions (mm) Bolt Dia. Bearing No. Adapt. Sleeve No. Spacer Ring Wt. (Kg.) No. d H A E B S1 S2 G W L L1 X E1 2 B. 4 B. Ball Roller Metric Inch No. Q SN6 (in) (mm) (SR)
One housing per set should include spacer rings.Dimension �X� may vary with fitting arrangements. Please check your application.Note: Lock nut must be located on oil well side of housing.
HOUSINGS
No. Unit Shaft Dia. Dimensions (mm) Bolt Spher. Adapt. Sleeve No. Spacer Ring HSG No. d H A E B G W L1 C E1 X T Z S Roll. B. Metric Inch No. Q Wt.
(in) (mm) (SR)
Labyrinth �TS� SealStandard on SD
Housings.Unless specified �B�Type Open Housings
Supplied.
TS Taconite Type Seal.Available Against
Order.
Split Housings:Series SD 3100 Heavy Duty
PagePage 1.244 Motion Technology
CSD3168 320 360 830 700 240 70 705 350 430 30 264 225 42 23168K H3168 580 x 10 2CSD3172 340 360 830 700 240 70 705 350 430 30 264 225 42 23172K H3172 600 x 10 2CSD3176 360 390 880 760 280 75 765 380 460 35 280 240 42 23176K H3176 620 x 10 2CSD3180 380 390 880 760 280 75 765 380 460 35 280 240 42 23180K H3180 650 x 10 2CSD3184 400 440 940 810 280 80 850 400 490 35 294 255 42 23184K H3184 700 x 10 2CSD3188 410 440 940 810 280 80 850 400 490 35 294 255 42 23188K H3188 720 x 10 2CSD3192 430 470 1040 880 310 80 920 440 530 35 314 275 52 23192K H3192 760 x 10 2CSD3196 450 470 1040 880 310 80 920 440 530 35 314 275 52 23196K H3196 790 x 10 2One housing per set should include spacer rings.Note: Lock nut must be located in oil well side of housing.
HOUSINGS
Unit No. Shaft Dimensions (mm) Bolt Spher. Adapter Spacer QDia. H A E E1 G W B L1 C T Z Dia. Roll. B. Sleeve Ring d S (SR)
Labyrinth �TS� SealStandard on CSD
Housings.Unless specified �B�Type Open Housings
Supplied.
TS Taconite Type Seal.Available Against
Order.
Split Housings:Series CSD 3100 Heavy Duty
Page 1.245Motion Technology
HOUSINGS
1-7/16 SAF22509 SAF509 22209K HA309 LER17 SR 85 x 61-11/16 SAF22510 SAF510 22210K HA310 LER20 SR 90 x 6.51-15/16 SAF22511 SAF511 22211K HA311 LER24 SR 100 x 62-3/16 SAF22513 SAF513 22213K HA313 LER29 SR 120 x 82-7/16 SAF22515 SAF515 22215K HA315 LER37 SR 130 x 102-11/16 SAF22516 SAF516 22216K HA316 LER44 SR 140 x 102-15/16 SAF22517 SAF517 22217K HA317 LER53 SR 150 x 103-3/16 SAF22518 SAF518 22218K HA318 LER188 SR 160 x 103-7/16 SAF22520 SAF520 22220K HA320 LER102 SR 180 x 103-15/16 SAF22522 SAF522 22222K HA322 LER109 SR 200 x 104-3/16 SAF22524 SAF524 22224K HA3124 LER113 SR 215 x 104-7/16 SAF22526 SAF526 22226K HA3126 LER117 SR 230 x 104-15/16 SAF22528 SAF528 22228K HA3128 LER122 SR 250 x 105-3/16 SAF22530 SAF530 22230K HA3130 LER125 SR 270 x 105-7/16 SAF22532 SAF532 22232K HA3132 LER130 SR 290 x 105-15/16 SAF22534 SAF534 22234K HA3134 LER140 SR 310 x 106-7/16 SAF22536 SAF536 22236K HA3136 LER148 SR 320 x 106-15/16 SAF22538 SAF538 22238K HA3138 LER155 SR 340 x 107-3/16 SAF22540 SAF540 22240K HA3140 LER159 SR 360 x 107-15/16 SAF22544 SAF544 22244K HA3144 LER167 SR 400 x 10
Shaft Complete Basic Spherical Adapter Labyrinth SpacerDia. d Plum. Block Housing Roller Sleeve Seal Ring Ringinch Number Only Bearing Number (2 Required) (1 Required)
1-7/16 SAF22609 SAF609 22309K HA2309 LER17 SR 100 x 61-11/16 SAF22610 SAF610 22310K HA2310 LER20 SR 110 x 81-15/16 SAF22611 SAF611 22311K HA2311 LER24 SR 120 x 102-3/16 SAF22613 SAF613 22313K HA2313 LER32 SR 140 x 8.52-7/16 SAF22615 SAF615 22315K HA2315 LER37 SR 160 x 102-11/16 SAF22616 SAF616 22316K HA2316 LER44 SR 170 x 102-15/16 SAF22617 SAF617 22317K HA2317 LER184 SR 180 x 103-3/16 SAF22618 SAF618 22318K HA2318 LER188 SR 190 x 9.53-7/16 SAF22620 SAF620 22320K HA2320 LER102 SR 215 x 9.53-15/16 SAF22622 SAF622 22322K HA2322 LER109 SR 240 x 9.54-3/16 SAF22624 SAF624 22324K HA2324 LER113 SR 260 x 9.54-7/16 SAF22626 SAF626 22326K HA2326 LER117 SR 280 x 9.54-15/16 SAF22628 SAF628 22328K HA2328 LER122 SR 300 x 9.55-3/16 SAF22630 SAF630 22330K HA2330 LER125 SR 320 x 9.55-7/16 SAF22632 SAF632 22332K HA2332 LER130 SR 340 x 9.55-15/16 SAF22634 SAF634 22334K HA2334 LER140 SR 360 x 106-7/16 SAF22636 SAF636 22336K HA2336 LER148 SR 380 x 106-15/16 SAF22638 SAF638 22338K HA2338 LER155 SR 400 x 107-3/16 SAF22640 SAF640 22340K HA2340 LER159 SR 420 x 10
Shaft Complete Basic Spherical Adapter Labyrinth SpacerDia. d Plum. Block Housing Roller Sleeve Seal Ring Ringinch Number Only Bearing Number (2 Required) (1 Required)
Basic A B E E F G H K L P Bolts (No. req�d) HSGHousing max min Static Wt.No. in. in. in. in. in. in. in. Oil Level in. in. in. in. Kg.
in.
Labyrinth �TS� SealStandard on SAF Housing.TS Taconite Seal AvailableAgainst Special Order.
Split Housings:Series SAF 500 & SAF 600
Fixed Bearing
Float Bearing
DESIGN FEATURES:
n Designed for both grease or oil lubrication, the housings havesubstantial oil capacity and are preferred when oil bath or oilcirculation is required.
n Seals are the frictionless Aluminium TS Labyrinth type whichexcludes foreign matter and retain grease and oil. Theyassure maximum sealing even under unusually dirtyconditions.
n Extra heavy wide base with flat, smooth top surface for betterbolt sealing.
n Lifting grips on each side of 4-bolt cap.
NOTE:
1) When ordering SAF 513-520 and SAF 611-617, please specifyeither 2 Bolt or 4 Bolt Mounting. Housing with prefix �F�denotes 4-bolt base.
2) One Housing per set should include Spacer Rings.
Dimension �X� may vary with fitting arrangements. Please check your application.Unless specified �B� type open covers supplied. One housing per set should include spacer rings.
HOUSINGS Solid HousingsSeries SB 500 Medium Duty
Felt Seal Standard on SB Housings
Unit Shaft Dia. d Dimensions (mm) Bolt Bearing No. Adapter Sleeve Spacer Ring No. (in) (mm) H A C D E B W L1 P X Y Wt L F Ball Roller Metric Inch No.(SR) Q
Labyrinth LS Seal and LS Taconite SealAvailable Against Order.
Note:SB505-SB515 Inclusive are 2 Bolt Mounting Cover.SB516-SB522 Inclusive are 4 Bolt Mounting Coveras shown.
Unless specified �B� type open covers supplied. One housing per set should include spacer rings.
Unit Shaft Dia. d Dimension (mm) Bolt Diameter Bearing No. Adapter Sleeve No. Spacer Ring No. (in) (mm) H A E Y C D B W W1 L L1 F P E1 X 2 Bolt 4 Bolt Ball Roller Metric Inch No.(SR) Q
Felt Seal Standard on WB Housings Labyrinth LS Seal and LS Taconite SealAvailable Against Order.
Unit No. Shaft Dia. Dimensions Bearing No. Lock Lock A-Type B-Type d da H A E B C D F G J K L1 L2 Bolt Ball Roller Nut Washer
�A� - TypeClosedCover
�B� - TypeOpenCover
Felt seals standard on TVN housings.
TVN Series housings are designedwith 1mm axial displacement bothsides of bearing.
Please specify either �A� type or �B�type covers.
1
Page 1.251Motion Technology
HOUSINGSSealing Arrangements
for SN, SD & Solid Housing
�Felt� Seal
(PRE-SOAK IN OIL)Standard sealing normal conditions.Limiting speeds 3-4 metres per second.SN & Solid housings have felt groove asstandard. Poor seal option.
Grub ScrewLocking
GreasePurgingAccess
Oil Seal
O-RingDrive
SplitTaconiteCover
�Z� Seal
(GOOD SHAFT FINISH)Wiping lip seal improves protection fornon-abrasive environment. Limitingspeed 10-15 metres per second. Betteralternative to Felt seal. Good in wet envi-ronments. SN & Solid housings have feltgroove as standard.
�LS� Seal�SOLID� HOUSINGS (FC, WB, SB, TH)
(NON-CONTACT, HIGH SPEED)(Horizontal Labyrinth) non-contact forabrasive environment. No limiting speed.Available on non-split housings only andsupplied on request.
�LS� TAC TypeULTIMATE SEAL
�SOLID� HOUSINGS (FC, WB, SB, TH)(Taconite) combination wiping lip and laby-rinth for extreme conditions. Grease nip-ple purges labyrinth seal. Oil seal preventscombination of bearing grease. Availableon non-split housings & on request only.
�TS� Type�SSN� & �SD� HOUSINGS
(Vertical Labyrinth) non-contact seal forabrasive environment. No limiting speed.Available on split type housings only. Thissealing supplied standard on SD & SSNhousings.
�TS� TAC TypeULTIMATE SEAL
�SSN� & �SD� HOUSINGS
(Taconite) combination wiping lip and laby-rinth for extreme conditions. Limitingspeeds 10-15 metres per second. Thissealing is available on SD and SSN splitplummer block or special application only.
Consider �SNA� Housings for Improved Sealing
Max. Temp.= 110 °CSpeed = Low
Max. Temp.= 110 °CSpeed = Low & High
Max.Temp.= Max. Bearing Temp.Speed = High (Max. Brg speed)
Not recommended for lowspeed and wet applications.
Max. Temp.= 110 °C (Nitrile)Max. Temp.= 200 °C (Viton)
Speed = Low to High
Max. Temp.= 110 °C (Nitrile)Max. Temp.= 200 °C (Viton)
Speed = Low to High
Max. Temp.= 110 °C (Nitrile)Max. Temp.= 200 °C (Viton)
Speed = Low to High
O-RingDrive
GreasePurgingAccess
Part No Example:Felt 2-1/2 (INCH & METRIC)
(USE IMPERIAL SIZES FOR METRIC)
Part No Example: �SN 515�ZF 15 E (2-1/2 INCHES)
ZF 15 (65 MM)
Part No Example: �FC 515�LS E 15 (2-1/2 INCHES)
LS15 (65 MM)
Part No Example: �WB 515�LS E TAC 15 (2-1/2 INCHES)
LS TAC 15 (65 MM)
Part No Example: �SSN 515�TS E 15 (2-1/2 INCHES)
TS 15 (65 MM)
Part No Example: �SSN 515�TS E TAC 15 (2-1/2 INCHES)
2222K H322 HE322 200 x 13.5 222222K H322 HE322 200 x 13.5 2
Unless specified �B� type open covers supplied. One housing per set should include spacer rings.When ordering specify both cover and housing sealing required.
HOUSINGS Flange HousingsSeries FC 500E Medium Duty
Unit Shaft Dia. d Dimensions (mm) Bolt Bearing No. Adapter Sleeve No. Spacer Ring No. (in) (mm) A E C G L L1 P R X Y Ball Roller Metric Inch No. Q
Felt Seal Standard on FCHousings
Unless Specified �B� TypeOpen Covers Supplied.
�C� Type Closed HousingUnit. (Blanking Plug Fitted).
�A� Type Closed Cover Unit.
Labyrinth �LS� Seal & LSTaconite Seal AvailableAgainst Order.
Closed Cover Unit �LS A�Type.
Closed Housing Unit �LS C�Type. (Blanking PlugFitted).
Note:
1) This Series is available with Inch (E) or Metric (M) shaft openings.Please specify Inch or Metric on order.
2) * - indicates Metric Shaft Housings which are common with FCMseries.
A
Page 1.253Motion Technology
HOUSINGS Flange HousingsSeries FCM 500 Medium Duty Metric
Unless specified �B� type open covers supplied. One housing per set should include spacer rings.When ordering specify both cover and housing sealing required.
Unit Shaft Dimensions (mm) Bolt Bearing No. Adapter Spacer Ring No. Dia d A E C G L L
1P R X Y Ball Roller Sleeve No. Q
Metric
�C� Type Closed Housing Unit.(Blanking Plug Fitted).
�A� Type ClosedCover Unit.
Felt Seal Standard on FCHousings.Unless specified, �B� TypeOpen Covers Supplied.
Labyrinth �LS� Seal & LSTaconite Seal Available AgainstOrder.
Closed Cover Unit �LS A� Type.
Closed Housing Unit �LS C�Type. (Blanking Plug Fitted).
This Series is Metric Only.
Page 1.254 Motion Technology
HOUSINGS Flange HousingsSeries RFS 500 Medium Duty
22222K H322 HE322 200 x 13.5 2RFS524 4-1/4 110 355 308 304 152 265 74 93 32 73 93 39 46 22 M20 22224K H3124 HE3124 215 x 14 1RFS526 4-1/2 115 374 332 324 162 280 73 92 32 78 99 44 48 26 M24 22226K H3126 HE3126 230 x 13 1RFS528 5 125 410 366 343 171.5 300 76.5 99 32 76 100 47.5 50 26 M24 22228K H3128 HE3128 250 x 15 1Unless specified �B� type open cover supplied. One housing per set should include spacer rings.
Unit Shaft Dia. Dimensions (mm) Hole Dia. S Bolt Bearing No. Adapter Sleeve No. Spacer Ring No. (in) (mm) A A1 P E F J J1 K G T I X 4 H 6 H Ball Roller Metric Inch No. Q
Felt Seal Standard onRFS Housings
Note:
RFS 508 - RFS 522 Inclusive are 4 Bolt Mounting Housing, as shown.RFS 524 - RFS 528 Inclusive are 6 Bolt Mounting Housing.
Labyrinth �LS� Seal & LSTaconite Seal Available AgainstOrder.
Page 1.255Motion Technology
HOUSINGS Flange HousingsSeries CFCN 2220 Heavy Duty
Unit No. Dimensions (mm) Max S S T T N Spher.d D1 D2 D3 A P F J J1 G G1 G2 K Y C X Z Shaft 4 Bolt 6 Bolt 2 Hole 3 Hole 3 Hole Roll B.
Rad R
Notes:
1) Specify required sealing for both housing and cover when ordering.2) Z Seals are not available for shafts above 140 diameter.3) Dimension �X� may vary with fitting arrangements. Please check your
TU534-500 TU534 6 150 500 440 M30 1470 1380 525 263 88 100 206 135 108 162 134 73 4.5 23134K H3134 HE3134 2-280 x 15 78.40Housing travel lengths, other than 500mm, are available against order.Larger size housings available on request.Unless specified �B� type open covers and 2 bolt frame mounting supplied. One housing per set should include spacer rings.
Unit No. Housing Shaft Dia. d Dimensions (mm) Bearing No. Adapter Sleeve Spacer Allow. No. (in) (mm) A B C M E F G H K R L L1 L2 L3 X U Ball Roller Metric Inch Ring Frame
kN
�A� Cover
LS Seal
Felt Seal
LS Taconite Seal
Optional 4 Bolt Mountingand 2 Nuts on �K� Centres
Felt Seal Standard on TU Housings.Labyrinth LS Seal & LS Taconite Seals Available Against Order.
Page 1.257Motion Technology
HOUSINGS Take-Up HousingsSeries TH 500 Medium Duty
2222K H322 HE322 200 x 13.5 222222K H322 HE322 200 x 13.5 2
Unless specified �B� type covers supplied. One housing per set should include spacer rings.
Unit No. Shaft Dia. d Dimensions (mm) Pin Dia. Bearing No. Adapter Sleeve No. Spacer Ring Hole E (in) M (mm) E K A L H O G B Q R L1 L2 X Ball Roller Metric Inch No. Q Dia.
Felt Seal Standard on TH Housings.
Labyrinth LS Seal & LS Taconite Seals Available AgainstOrder.
Page 1.258 Motion Technology
HOUSINGS Take-Up HousingsSeries THM 500 Medium Duty Metric
Unless specified �B� type open covers supplied.One housing per set should include spacer rings.Larger THM size housings to suit 231 seriesare available on request.
Unit No. Shaft Dimensions (mm) Pin Bearing No. Adapter Spacer Ring HoleDia.d E K A L H O G B Q R L1 L2 X Dia. Ball Roller Sleeve No. Q Dia.(mm) Metric
Felt Seal Standard on THM Housings.
Labyrinth LS Seal & LS Taconite SealsAvailable Against Order.
Page 1.259Motion Technology
HOUSINGS PDN Two-Bearing HousingsShaft Dia. 25-90 mm
6318 V-90 A FS 370 PDNB 318 VJ-PDNB 318 3400 135* No spring washer is supplied with housings PDN 317 and PDN 318.** Two-bearing units complete with shaft and bearings assembled ready for mounting can be supplied.
Shaft Appropriate Separate Components Two-Bearing Unit** Permissible MassDia. d
aBearing Spring V-ring Felt Designations Shaft Speed,
Washer* Strip Unit, incl. shaft grease lub.
Housings up to and includingPDN 211 AND PDN 309.
Housings from PDN 212and PDN 310
Shaft Housing Dimensions MassDia. Designation A A1 A2 A3 A4 Da H H1 H2 J J1 L N G G1da
DODGE BEARING UNITS Unitized Spherical BearingS2000, SN2000
DODGE® UNITIZED SPHERICAL BEARINGS
Longer bearing life by design...
R
INSTALLATION SAVINGS ...
� Factory lubed, sealed and adjusted � ready to slip onto the shaft� 65° Springlock collar mount for increased holding power versus 90° or 120°� Field convertible from non-expansion to expansion through 3½�/90 mm� Elongated bolt holes to facilitate mounting
Page 1.262 Motion Technology
DODGE BEARING UNITS Unitized Spherical BearingSN 2000 METRIC
SN 2000Dimensionally interchangeable with SN/SNU 500 Series
� Two-bolt plummer blocks available from 1-1/8 - 3-1/2�, 30mm up to 90mm.� Cast-in drilling location dimples for dowels or conversion from two-bolt to four-bolt mounting� H7 bearing seats provide 25% tighter bearing support than H8 fits - for improved, higher speed performance.
� Stiff ductile, higher shock resistant iron housing has 65 000 PSI tensile strength and withstands lower ambient temperatures.
S2S SEALS2R SEAL
R
Page 1.263Motion Technology
DODGE BEARING UNITS Unitized Spherical BearingSN 2000 METRIC
D F YBolt Set
Shaft A B C Min. Max. Dia. G H J J1 L M R S X� ScrewSize mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm Size
90mm 046912 P2BSN2090MR 046925 P2BSN2090MRE 046938 P2BSN2090MS 046951 P2BSN2090MSE 15.71) Furnished unless otherwise specified.2) Assembled to order. Consult Dodge for delivery.3) Consult Dodge for sizes not listed.
SN-2000 (S2R Seals)1) SN-2000 (S2S Seals)Shaft Fixed Type Exp. Type Fixed Type Exp. Type Approx. Size Part Part Part Part Part Part Part Part Wt./Kgs.3) Ref. No. Ref. No. Ref.2) No. Ref.2) No.
SN-2000 METRIC PLUMMER BLOCK ASSEMBLYinterchange with SN/SNU 500 series
Page 1.264 Motion Technology
DODGE BEARING UNITSSN-2000 PILLOW BLOCK 2-BOLT BASE - INCH
interchange with SN/SNU 500 series
D F YShaft Bolt SetSize A B C Min. Max. Dia. G H J J1 L M R S X* Screwinch mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm Size
* Offset of non-expansion bearing to centre of housing. � Dimension shown are for non-expansion units.
Unitized Spherical BearingSN 2000 INCH
R
SN-2000 PILLOW BLOCK DIMENSIONS�
S2R Seals* S2S SealsShaft Non-Expansion* Expansion Non-Expansion Expansion Approx.Size Part Part Part Part Part Part Part Part Wt./Lbs.inch Ref. No. Ref. No. Ref. No. Ref. No.
offers a wide variety of compact, grey ironconstructions to choose from. All S 2000 bearings include:� S2R and S2S seal options� Easy installation features� Extended life bearings
2-Bolt BaseS 2000 INCH
R
Page 1.266 Motion Technology
DODGE BEARING UNITS Unitized Spherical BearingS 2000 INCH
Max. Allow. DynamicSlip Fit Capacity
Shaft Basic Radial Load (C) Maximum RPMSize Bearing FA/FR<e FA/FR>e FR* S-2000 UNI-inch Description e X Y X Y Lbs. Lbs. S2S Seal S2R Seal Sphere II
S-2000 AND UNISPHERE II SPHERICAL ROLLER BEARINGSRADIAL AND THRUST FACTORS
* If load exceeds �Max. allowable slip fit load�, line to line to light press fit of shaft required. Maximum slip fit radial loads apply if recommended shaft sizes are used.
R
Page 1.267Motion Technology
DODGE BEARING UNITS Unitized Spherical BearingS 2000 INCH
D FShaft BoltSize A B C Min. Max. Dia. G H J J1 L M R S X
� Dimensions shown are for non-expansion units. The Expansion Bearing Centre and Housing Centre are on the same centreline.
R
S-2000 INCH 2-BOLT PILLOW BLOCKS (NON-EXPANSION/EXPANSION TYPES)
S2R Seals* S2S SealsShaft Non-Expansion* Expansion Non-Expansion Expansion Approx.Size Part Part Part Part Part Part Part Part Wt./Lbs.1) Ref. No. Ref. No. Ref. No. Ref. No.
Shaft Dimensions (mm) BoltDia. d A B E G H W L P K Dia. (in.)(in) 2 Bolt
Light Series
Heavy Series
R
Page 1.269Motion Technology
COOPER SPLIT BEARING UNITS
Page 1.270 Motion Technology
COOPER SPLIT BEARING UNITSCooper Split Roller BearingsThe Cooper Split Roller Bearing uses cylindrical roll-ers with modified line contact and has its main com-ponents made in halves. Simple assembly of thesehalves round the shaft eliminates axial threading in-volved with solid bearings and all special machiningthreaded portions and locknuts - it enables shaftingto be designed solely to strength requirements and isa unique asset in the development of less costly, lighterand more efficient machines.
Easily fitted to recessed shafts, crankpins and manyapplications where the installation of a solid bearingwould be impractical or impossible. Cooper SplitRoller Bearings are also preferred in countless otherapplications for their exceptional reliability and sim-ple maintenance - every part of the bearing, includingthe rolling surfaces, can be inspected or the bearingquickly replaced without disturbing any other equip-ment on the shaft.
The bearing races and rollers are made from first qual-ity carbon chrome steel, through hardened and pre-cision finished. Races have angled joints to ensurecontinuity of contact with the rollers. Cage halves aremade from light alloy or bronze and joined by springsteel clips.
Bearings for radial and axial loads. Positions theshaft endwise and resists axial thrust by cycloidalcontact of the roller ends within the outer racegroove and the inner face of the clamping rings.
Types of BearingsStandard Cooper Split Roller Bearings are suppliedas bearings only or in swivel cartridges with variousforms of pedestals, flanges, take-ups and rod ends.
Series 01 and 02 Cooper split roller bearings havebeen developed to provide a wider range of applica-tion and supersede the Medium and Heavy SN/SNAseries in sizes up to 150mm (6�). Bearing maximumspeeds are increased through the new productiontechniques and grooved inner races introduced onExpansion EX bearings, thereby raising their ratings.Bearings and cartridges in the new series have a highdegree of interchangeability with the correspondingMedium and Heavy Series SN/SNA Housings.
Pedestals are generally to ISO dimensions and, whereinterchangeability with Medium and Heavy series isnecessary, pedestal bases with modified height tocentreline (H2) can be supplied. For details of otherseries and sizes of Cooper roller bearings up to1500mm (60�) shaft dia., catalogues or dimensionswill be supplied on request.
Page 1.271Motion Technology
COOPER SPLIT BEARING UNITS
10 GOOD REASONS TO FITCOOPER SPLIT ROLLER BEARINGS
1. All components of the bearing are split axially in two places so the bearing and the housing are fitted to the shaft radially.Advantage:This permits the bearing to be fitted without disturbing other components which may be mounted on that shaft between thebearing and shaft end.
2. All internal wearing surfaces of the bearing can be inspected using only a socket head screw key and without disturbing anyof the components which may be mounted along the shaft.Advantage:Because of the ease of inspecting these wearing surfaces, it is possible to obtain the maximum life from the bearing onlyreplacing it when it has, in fact, fatigued to a point where it can no longer be relied upon. This ability to inspect the bearingmakes it possible for its replacement to be planned by observing the rate at which the bearing is fatiguing.
3. The only tools required are two sizes of socket hand screw keys, a hardwood block and hammer or resin hammer.Advantage:No expensive or special equipment, such as a hydraulic pump and hydraulic nuts are needed. Minimum time of assemblyand disassembly is achieved.
4. Dimensionally interchangeable with SN type housing.Advantage:In difficult, inaccessible locations when it is necessary to replace the bearin in an SN housing, this can be achieved byreplacing the whole unit with a Cooper split roller bearing without the shaft having to be lifted or the other mountings on theshaft being disturbed. This is because the base to centre line and bolt centres are the same for both types.
5. The inner race is clamped to the shaft and does not rely upon the tapered adaptor sleeve to obtain the necessary fit on theshaft.Advantage:The correct internal running clearance of the bearing is assured because the risk of expanding the inner race excessively andso removing the necessary diameteral clearance is eliminated. Also removed is the risk of the bearing being left loose on theshaft because no longer is there a dependence on the tapered sleeve being adjusted correctly into the bearing but by simplemeasurement of the shaft, the correct fit is assured.
6. The expansion or floating of the shaft is accomodated within the bearing and does not rely on the outer race of the bearingsliding within the housing.Advantage:Excessive axial loading resulting from the resistance of the bearing to move axially within the housing is eliminated, so removing unnecessary load on the locating bearing which in turn increases its operating life.
7. The self aligning feature is provided between the OD of the Cartridge and the ID of the Pedestal ensuring uniform, consistentand so minimal clearance between the shaft and the housing.Advantage:The sealing of the bearing is more effective which improves the bearing life through reduced ingress of foreign matter to thebearing.
8. The bearing and shaft can be lifted away from the pedestal without exposing the bearing.Advantage:This sub-assembly can be removed without the bearing being exposed so that it is kept clean while work is being carried outon other parts of this sub-assembly. By keeping the bearing clean, its life is significantly extended.
9. The bearing is made up of six major components.Advantage:As each of these six components are fitted separately, the weight of the largest of these six components is much less thanthe solid bearing. This makes for easier handling and may completely eliminate the need for lifting tackle which would benecessary in the case of a solid bearing.
10. The position of the inner race relative to the outer race of the locating bearing is always constant.Advantage:By fitting Cooper bearing to a grooved portion of the shaft, it is possible to guarantee constant and precise location of the shaftrelative to the framework on which the housing is mounted.
Page 1.272 Motion Technology
COOPER SPLIT BEARING UNITS
Split Roller Bearings Simplify Design, Reduce Assembly and Down Time
Unit Shaft 2 Bolt Bolt centre Shaft C. Complete* Shaft Complete UnitNo. Dia. Hole Identical Height Unit Dia. NumberSN(SNA) (in) Base identical Number (mm)
1. Clean the shaft and check diameter, roundness and parallelism. Lightly oil.2. Position the matched halves of the inner race.3. Fit the clamping rings with joints at 30 degrees to the inner racejoints - tighten screws with key and pipe extension.4. Tap down the race and clamping rings using a hammer and a block - retighten screws. Repeat until all bearing parts are fully seated.
Ensure a gap at both joints.5. Clip the roller cage halves around the inner race and coat with grease as required.6. Install the Aluminium Triple Labyrinth Seals. (NOTE: When limited access to the shaft exists, install seals first).7. Close the cartridge and tighten joint screws. Lubricate spherical seating (Molykote® �G� paste or similar).
* ALSO AVAILABLE FOR SHAFT DIAMETERS UP TO 63 INCH, 1600 mm.* Add suffix EX or GR to complete unit number to specify either expansion or fixed type e.g. 01BCP108 EX (expansion) or 01BCP200 GR (fixed).
Types of BearingsEXPANSION (EX)*For radial loads only,
permits axial movementof shaft.
FIXED (GR)*For combined radial
and axial load
Page 1.273Motion Technology
01 B 40 40 65 67 3.2 5400 84.14 23.8 50.1 1.001 B 50 50 75 80 3.6 4630 98.42 25.4 55.7 1.501 B 60 60 97 110 5.4 3940 114.30 27.0 55.7 1.501 B 65 6501 B 70 70 130 157 7.6 3310 133.35 31.8 61.2 2.501 B 75 7501 B 80 80 179 226 12.4 2790 152.40 38.9 70.7 4.001 B 85 8501 B 90 9001 B 100 100 239 318 16.0 2340 174.62 45.3 81.0 6.001 B 105 10501 B 110 110 298 407 18.6 1970 203.20 46.9 84.9 9.001 B 115 11501 B 120 120 348 484 22.2 1740 222.25 54.0 89.7 11.001 B 125 12501 B 130 13001 B 135 135 386 542 25.8 1570 241.30 55.6 98.4 14.001 B 140 14001 B 150 150 420 616 29.4 1450 254.00 55.6 98.4 16.001 B 155 15501 B 160 160 475 708 33.0 1320 273.05 60.3 109 2001 B 170 170 510 793 36.4 1220 285.75 55.5 109 2301 B 180 18001 B 190 190 534 883 41.0 1070 311.15 60.3 109 2501 B 200 20001 B 220 220 578 980 49.0 930 342.90 63.5 115 3201 B 240 240 640 1170 57.8 820 374.65 66.7 122 4001 B 260 260 725 1333 66.8 730 406.40 69.0 128 5001 B 280 28001 B 300 300 762 1456 78.2 650 438.15 74.6 143 6001 B 320 320 841 1642 89.0 590 463.55 74.6 136 7201 B 340 340 871 1778 99.6 540 488.95 74.6 136 7801 B 360 360 938 1929 110.4 500 520.70 76.2 140 8601 B 380 38001 B 400 400 970 2076 115.6 460 546.10 76.2 140 9501 B 420 420 992 2223 121.0 430 571.50 76.2 140 10401 B 440 440 1029 2370 127.2 410 596.90 76.2 140 11401 B 460 46001 B 480 480 1063 2433 132.6 380 628.65 81.0 144 12801 B 500 500 1102 2593 137.8 360 654.05 80.2 168 13601 B 530 530 1140 2755 140.6 340 692.15 81.0 168 16401 B 560 560 1176 2916 142.4 330 717.55 81.0 168 17801 B 600 600 1300 3311 146.8 300 774.70 84.1 172 210Add mm and EX or GR to reference.*160mm size can also be supplied with overall dimensions and ratings as 150mm. Ref. 01 B 600 160mm.*170mm size can also be supplied with overall dimensions and ratings as 160mm. Ref. 01 B 608 170mm.Note: Inch Shaft sizes also available Ex-Stock.
01 C 40 86 100.00 3 0.06 P0101 C 50 98 117.48 4 0.09 P0201 C 60 104 134.94 5 0.1501 C 65 P0301 C 70 114 157.16 8 0.1801 C 75 P0401 C 80 136 177.80 11 0.3001 C 8501 C 90 P0501 C 100 134 203.20 14 0.3601 C 105 P0601 C 110 142 231.78 21 0.5101 C 115 P0701 C 120 156 266.70 31 0.6001 C 125 P0801 C 13001 C 135 168 279.40 35 0.7801 C 140 P0901 C 150 174 295.28 42 0.9001 C 155 P1001 C 160 172 192 311.15 52 1.00 P1101 C 170 172 200 323.85 54 1.1001 C 180 P1201 C 190 172 200 358.78 66 1.4001 C 200 P1301 C 220 178 216 387.35 78 1.40 P1401 C 240 188 222 419.10 98 2.00 P1501 C 260 204 232 454.00 120 2.0001 C 280 P1601 C 300 216 248 489.00 146 2.00 P1701 C 320 260 520.70 178 2.70 P1801 C 340 260 546.10 195 3.00 P1901 C 360 260 571.50 212 3.0001 C 380 P2001 C 400 280 603.30 236 3.60 P2101 C 420 292 628.70 254 4.20 P2201 C 440 304 650.90 265 4.2001 C 460 P2301 C 480 304 682.60 290 4.80 P2401 C 500 304 717.60 328 4.80 P2501 C 530 330 755.70 390 5.40 P2601 C 560 336 781.10 430 5.40 P2701 C 600 342 841.40 500 6.00 P29Add mm and EX or GR to reference.*Sizes up to 160mm or 6 inch shaft diameterare normally available from stock. Larger
sizes are available ex-factory.*Refer page 1.281 for sealing options.
COOPER SPLIT BEARINGS Pedestal UnitsSeries 01 - Metric
Reference d Bearing Rating kN Max D B C Wt BBearing mm Dyn. Static Axial rpm kgOnly C Cor Ca
Reference L L1 G Wt Full PEDCartridge BC Pack No.Shell Only kg Grease
Wt kg
Series 01 CartridgeSeries 01 BearingExpansion EX Fixed GR
P01 60 228 x 60 22 2-M12 180 138 5P02 70 270 x 60 25 2-M16 214 158 8P03 80 280 x 70 32 2-M16 234 180 11P04 95 330 x 76 38 2-M20 270 208 16P05 112 380 x 90 44 2-M24 320 252 26P06 125 420 x 102 52 2-M24 354 272 30P07 143 466 x 120 60 2-M24 392 314 42P08 162 508 x 178 38 4-M24 450 x 120 372 76P09 181 558 x 178 40 4-M24 482 x 120 405 87P10 181 558 x 178 40 4-M24 496 x 120 415 97P11 213 508 x 178 32 4-M24 368 x 114 430 113P12 235 534 x 190 35 4-M24 388 x 128 470 123P13 248 572 x 204 38 4-M24 422 x 140 495 154P14 270 636 x 216 40 4-M30 460 x 140 540 190P15 292 686 x 228 44 4-M30 502 x 140 585 240P16 311 724 x 228 48 4-M30 534 x 140 620 286P17 343 762 x 254 50 4-M30 584 x 178 685 340P18 368 812 x 254 54 4-M36 622 x 178 735 386P19 387 850 x 254 57 4-M36 654 x 166 775 430P20 397 902 x 254 60 4-M36 676 x 166 795 500P21 432 940 x 254 67 4-M36 724 x 166 865 545P22 445 966 x 254 67 4-M36 756 x 166 890 570P23 464 1042 x 280 70 4-M42 788 x 190 925 635P24 483 1092 x 304 73 4-M42 816 x 188 965 750P25 489 1092 x 304 76 4-M42 844 x 216 980 770P26 553 1194 x 304 80 4-M42 904 x 206 1065 885P27 552 1220 x 304 83 4-M42 936 x 206 1110 1000P29 597 1372 x 304 90 8-M361118 & 908 x 200 1200 1220
Series 01 Pedestal
Pedestal Units
Metric Shaft Dia. Imperial Shaft Dia.mm REF Inch REF
The adjacent table shows the range of bearings available formetric and imperial shaft sizes.Additional sizes can be made to order. All bearings in a singlegroup have the same overall dimensions apart from bore size.
Ref. H Dimensions (mm) Bolts R x S T WtPedestal N x 0 P BCPCasting kg
Page 1.275Motion Technology
COOPER SPLIT BEARINGS Pedestal Units
02 B 50 50 117 124 6.2 4350 107.95 35.0 67.5 202 B 60 60 165 186 8.8 3680 127.00 38.9 72.3 302 B 65 6502 B 70 70 219 262 10.6 3080 149.22 46.1 82.6 502 B 75 7502 B 80 80 278 345 17.8 2520 169.86 48.4 89.7 702 B 85 8502 B 90 9002 B 100 100 360 456 25.0 2130 193.68 51.6 92.1 902 B 110 110 447 577 31.2 1820 228.60 57.2 100.0 1602 B 115 11502 B 120 120 548 714 38.2 1600 254.00 63.5 114.3 2002 B 125 12502 B 130 13002 B 140 140 612 809 45.4 1450 273.05 66.7 117.5 2402 B 150 150 730 1007 52.4 1320 292.10 68.3 123.8 2902 B 160 160 769 1033 61.4 1200 317.50 83.3 140 3902 B 170 17002 B 180 180 849 1191 71.2 1120 330.20 83.3 140 4502 B 190 190 990 1457 80.0 960 368.30 90.5 156 5902 B 200 20002 B 220 220 1067 1661 89.8 850 393.70 90.5 163 6802 B 240 240 1213 1756 98.8 750 431.80 96.8 170 7702 B 260 26002 B 280 280 1364 2145 113.8 670 463.55 101.6 186 8602 B 300 300 1462 2409 129.0 610 495.30 103.2 193 12302 B 320 320 1560 2622 144.2 550 527.05 106.4 192 15002 B 340 340 1729 2940 159.2 500 565.15 115.9 200 18202 B 360 36002 B 380 380 1822 3254 174.4 460 584.20 111.1 200 18602 B 400 400 1909 3438 188.4 430 615.95 115.9 200 20902 B 420 420 2013 3702 202.0 400 647.70 119.1 200 24102 B 440 440 2138 4057 216.0 380 666.75 115.9 200 25002 B 460 46002 B 480 480 2251 4419 230.0 360 698.50 119.1 223 26302 B 500 500 2346 4776 244.0 340 717.55 115.9 226 27202 B 530 530 2565 5137 258.0 330 762.00 119.1 229 30902 B 560 560 2675 5556 272.0 310 793.75 122.2 233 33602 B 600 600 2769 5992 300.0 290 838.20 119.1 214 381Add mm and EX or GR to reference.*160mm size can also be supplied with overall dimensions and ratings as 150mm. Ref: 02 B600 160mm.Note: Inch Shaft sizes also available Ex Stock.
Reference d Bearing Rating kN Max D B C Wt BBearing mm Dyn. Static Axial rpm kgOnly C Cor Ca
02 C 50 114 134.94 6 0.15 P0302 C 60 126 157.16 10 0.2102 C 65 P0402 C 70 140 177.80 14 0.3002 C 75 P0502 C 80 154 203.20 17 0.4502 C 85 P0602 C 9002 C 100 146 231.78 21 0.60 P0702 C 110 162 266.70 35 0.9002 C 115 P0802 C 120 184 295.28 46 1.1002 C 125 P0902 C 13002 C 140 188 323.85 57 1.40 P3002 C 150 204 336.55 68 1.40 P3102 C 160 206 232 368.3 95 1.4002 C 170 P3202 C 180 222 242 381.0 111 2.00 P3302 C 190 235 258 425.5 143 2.7002 C 200 P3402 C 220 242 274 457.2 166 3.60 P3502 C 240 248 280 495.3 182 4.2002 C 260 P3602 C 280 264 300 527.1 217 4.80 P3702 C 300 268 306 552.5 252 5.40 P3802 C 320 298 587.4 322 6.60 P3902 C 340 305 628.7 368 7.2002 C 360 P4002 C 380 305 647.7 395 7.80 P4102 C 400 324 685.8 463 9.00 P4202 C 420 324 717.6 505 9.60 P4302 C 440 324 733.4 515 9.6002 C 460 P4402 C 480 338 762.0 535 10.20 P4502 C 500 350 787.4 595 10.80 P4602 C 530 350 831.9 660 11.40 P4702 C 560 356 866.8 715 11.40 P4802 C 600 388 914.4 835 12.60 P50Add mm and EX or GR to reference.*Sizes up to 160mm or 6 inch shaft diameterare normally available from stock. Largersizes are available ex-factory.*Refer page 1.281 for sealing options.
Reference L L1 G Wt Full PEDCartridge BC Pack No.Shell Only kg Grease
Wt kg
Series 02 CartridgeSeries 02 Bearing
Expansion EX Fixed GR
Page 1.275aMotion Technology
COOPER SPLIT BEARINGS Pedestal Units Series 02 - Imperial
The adjacent table shows the range of bearings available formetric and imperial shaft sizes.Additional sizes can be made to order. All bearings in a singlegroup have the same overall dimensions apart from bore size.
Flange housings to suit up to 160mm or 6inch shaft diameter are normally available from stock.Larger sizes are available ex factory.
Flange units provide a simple means of mount-ing Cooper Split roller Bearings against a verti-cal or horizontal face. These units embodystandard swivel cartridges which may be as-sembled with Expansion or Fixed type bearings.
Where shafts terminate at the bearings, car-tridge ends may be fitted with blanking platesor, in the case of Expansion bearings to 90mm,blanking plates with thrust bearings for one-waypositioning.
The rear face of the flange is recessed for usewith the spigot if required. The top halves ofboth flange unit and cartridge can be lifted forinspection of the rolling surfaces.
Standard cast iron flanges normally have drilledbolt holes, outer surface as cast � fit flat washerunder bolt heads. Cast steel flanges normallyhave drilled holes, spot faced.
Tolerance f8 on spigot to fit recess N. Flangesfor bearings above 300 mm bore and in Series03 � prices and availability according to quan-tity.
Vertical shafts � bearings and vertical shaftsmay require modified construction, special sealsand lubrication.
Maximum load on C.I. Flanges 0.26 Cor or 0.25Ca. Higher loads at slow speeds and shockconditions require steel or nodular iron flangesand HT bolts. The support plate must be ad-equate. Please consult our Sales Department.
R pcd - holes equaly spaced
d mm Flange T Bolts R P H N V L WtCast. kg
d mm Flange T Bolts R P H N V L WtCast. kg
Series 01
Series 02
Page 1.278 Motion Technology
COOPER SPLIT BEARINGS Hanger Units
Hangers are a compact means of supporting the shafts of screwconveyors and similar equipment. The unit comprises a splitroller bearing in a cast iron split housing with threaded boss tofacilitate suspension from the conveyor cross-bracing. A swivelfixing at the cross-bracing joint is recommended to provide align-ment of the bearings.
Double felt or lipped rubber seals are provided, air purge sealsare also available. The aspect of sealing should be carefully con-sidered for each application. Continuous grease feed is some-times desirable and provision may be made through the hangerrods.
Maximum loads 0.16 Cor. Normal maximum speeds dn = 20,000.
Sizes up to 100mm shaft diameter are normally available from stock.Larger sizes are available ex factory.Expansion type bearings (Ex) only are applicable to hanger housings.Note: Inch Shaft sizes also available Ex-Stock.Add mm to Reference - e.g.: 01 BH 40mm
d Reference Dimensions (mm)mm Hanger Hanger C G L H X Y R Wt
Complete Casting kg
Page 1.279Motion Technology
40 01 BCRET 40 RET 01 92 3.0 86 x 30 76 140 152 57 x M12* 650 01 BCRET 50 RET 02 104 3.0 102 x 32 102 166 190 70 x M10 860 01 BCRET 60 RET 03 113 4.5 115 x 38 95 198 194 76 x M16* 965 01 BCRET 65 RET 03 113 4.5 115 x 38 95 198 194 76 x M16* 970 01 BCRET 70 RET 04 126 6.0 128 x 44 108 216 220 89 x M16* 1375 01 BCRET 75 RET 04 126 6.0 128 x 44 108 216 220 89 x M16* 1380 01 BCRET 80 RET 05/1 148 6.0 146 x 48 127 248 256 102 x M20* 2085 01 BCRET 85 RET 05/1 148 6.0 146 x 48 127 248 256 102 x M20* 2090 01 BCRET 90 RET 05/1 148 6.0 146 x 48 127 248 256 102 x M20* 20
100 01 BCRET 100 RET 06 146 6.0 170 x 76 200 308 356 124 x M24 36105 01 BCRET 105 RET 06 146 6.0 170 x 76 200 308 356 124 x M24 36110 01 BCRET 110 RET 07/3 154 6.0 190 x 86 222 334 390 136 x M30 52115 01 BCRET 115 RET 07/3 154 6.0 190 x 86 222 334 390 136 x M30 52120 01 BCRET 120 RET 08 168 6.0 190 x 86 222 375 425 136 x M30 65125 01 BCRET 125 RET 08 168 6.0 190 x 86 222 375 425 136 x M30 65130 01 BCRET 130 RET 08 168 6.0 190 x 86 222 375 425 136 x M30 65135 01 BCRET 135 RET 09 187 9.5 204 x 102 279 442 502 140 x M30 89140 01 BCRET 140 RET 09 187 9.5 204 x 102 279 442 502 140 x M30 89150 01 BCRET 150 RET 10 193 9.5 204 x 102 279 442 502 140 x M30 99155 01 BCRET 155 RET 10 193 9.5 204 x 102 279 442 502 140 x M30 99
Add mm to reference.*Tapped holes in end facing.
COOPER SPLIT BEARINGS Rod End
40 01 BCRES 40 RES 01 92 3.0 62 x 10 65 160 258 550 01 BCRES 50 RES 02 104 3.0 62 x 10 70 166 308 760 01 BCRES 60 RES 03/2 113 4.5 62 x 10 79 190 330 1365 01 BCRES 65 RES 03/2 113 4.5 62 x 10 79 190 330 1370 01 BCRES 70 RES 04 126 6.0 88 x 50 108 248 432 2275 01 BCRES 75 RES 04 126 6.0 88 x 50 108 248 432 2280 01 BCRES 80 RES 05 148 6.0 100 x 50 133 264 602 4385 01 BCRES 85 RES 05 148 6.0 100 x 50 133 264 602 4390 01 BCRES 90 RES 05 148 6.0 100 x 50 133 264 602 43
100 01 BCRES 100 RES 06 146 6.0 100 x 58 125 308 572 44105 01 BCRES 105 RES 06 146 6.0 100 x 58 125 308 572 44110 01 BCRES 110 RES 07 154 6.0 126 x 58 149 354 618 63115 01 BCRES 115 RES 07 154 6.0 126 x 58 149 354 618 63120 01 BCRES 120 RES 08 168 6.0 126 x 64 158 400 654 83125 01 BCRES 125 RES 08 168 6.0 126 x 64 158 400 654 83130 01 BCRES 130 RES 08 168 6.0 126 x 64 158 400 654 83135 01 BCRES 135 RES 09 187 9.5 152 x 76 177 442 696 98140 01 BCRES 140 RES 09 187 9.5 152 x 76 177 442 696 98150 01 BCRES 150 RES 10 193 9.5 152 x 76 177 442 696 107155 01 BCRES 155 RES 10 193 9.5 152 x 76 177 442 696 107
d Referencemm Rod End Rod End W r A x Y H K T Wt
Complete Casting kg
d Referencemm Rod End Rod End W r N x J H K T R x Bolts Wt
Complete Casting kg
Shoe Type01 BCRES02 BCRES
Rod fixing variesfrom 2 to 6 boltsaccording tosize.
50 02 BCRES 50 RES 03/1 123 4.5 62 x 32 76 190 330 1060 02 BCRES 60 RES 04 138 6.0 88 x 50 108 248 432 2065 02 BCRES 65 RES 04 138 6.0 88 x 50 108 248 432 2070 02 BCRES 70 RES 05/3 152 6.0 114 x 38 130 248 540 4075 02 BCRES 75 RES 05/3 152 6.0 114 x 38 130 248 540 4080 02 BCRES 80 RES 06/6 173 9.5 126 x 76 149 334 610 6285 02 BCRES 85 RES 06/6 173 9.5 126 x 76 149 334 610 6290 02 BCRES 90 RES 06/6 173 9.5 126 x 76 149 334 610 62
100 02 BCRES 100 RES 07/3 171 12.5 126 x 76 149 354 618 71110 02 BCRES 110 RES 08/2 187 12.5 126 x 76 162 400 654 91115 02 BCRES 115 RES 08/2 187 12.5 126 x 76 162 400 654 91120 02 BCRES 120 RES 10 209 12.5 152 x 76 177 442 696 124125 02 BCRES 125 RES 10 209 12.5 152 x 76 177 442 696 124130 02 BCRES 130 RES 10 209 12.5 152 x 76 177 442 696 124140 02 BCRES 140 RES 30 213 12.5 152 x 76 177 442 696 145150 02 BCRES 150 RES 31 229 12.5 152 x 64 203 444 736 166
50 02 BCRET 50 RET 03 123 4.5 115 x 38 95 198 194 75 x M16 960 02 BCRET 60 RET 04 138 6.0 128 x 44 108 216 220 89 x M16 1465 02 BCRET 65 RET 04 138 6.0 128 x 44 108 216 220 89 x M16 1470 02 BCRET 70 RET 05/1 152 6.0 146 x 48 127 248 256 102 x M20 2075 02 BCRET 75 RET 05/1 152 6.0 146 x 48 127 248 256 102 x M20 2080 02 BCRET 80 RET 06 173 9.5 170 x 76 200 308 356 124 x M24 4185 02 BCRET 85 RET 06 173 9.5 170 x 76 200 308 356 124 x M24 4190 02 BCRET 90 RET 06 173 9.5 170 x 76 200 308 356 124 x M24 41
100 02 BCRET 100 RET 07 171 12.5 204 x 102 241 324 445 140 x M30 57110 02 BCRET 110 RET 08/1 187 12.5 204 x 102 279 442 502 140 x M30 84115 02 BCRET 115 RET 08/1 187 12.5 204 x 102 279 442 502 140 x M30 84120 02 BCRET 120 RET 10 209 12.5 204 x 102 279 442 502 140 x M30 101125 02 BCRET 125 RET 10 209 12.5 204 x 102 279 442 502 140 x M30 101130 02 BCRET 130 RET 10 209 12.5 204 x 102 279 442 502 140 x M30 101140 02 BCRET 140 RET 30 213 12.5 204 x 102 279 445 558 140 x M30 119150 02 BCRET 150 RET 31 229 12.5 204 x 102 279 445 558 140 x M30 131
d Referencemm Rod End Rod End W r N x J H K T R x Bolts Wt
Complete Casting kg
Rod End
For solid crankshafts Cooper Split Roller Bearings can be simplyapplied. Cooper rod Ends are specially designed to form con-necting units for these and other reciprocating mechanisms.
Each unit consists of a split outer casting which encloses aGrooved Race Bearing in swivel cartridge.
Normally made in cast iron, these units are available as shoe-end and tee-end types shown and can be modified to suit vari-ous rods and attachments.
When enquiring or ordering please specify type and equipmentfor which the Rod Ends are required, including details of duty.
Special Rod Ends with or without swivel cartridges and with re-duced length on shaft are also manufactured.
Series 03 Rod Ends and other sizes � prices and availabilityaccording to quantity.
Series 02
Page 1.281Motion Technology
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
SealTemp
Max °C
Shaft Surface TextureMax Roughness µm
Ra Notes
dn<20,00 dn>20000
Neoprene Triple LabyrinthStandard up to 100mm (4")
Part No Examples:
NTL 2-1/2" NTL 65 mm
100
3.2 1.6
Available for sizes up to105mm, in neoprene rubber.
The cartridge has the samebasic number as the pedestalfor TL seals.
eg. 01C3EX
Aluminium Triple Labyrinth O-ring Grade 1 O-ring Grade 2Std for 100mm (4") and over
Part No Examples:
ATL 100mm ATL 4
100150
3.2 1.6
Available for sizes110-300mm with cartridgelength L .Larger sizes are made toorder.
The cartridge has the samebasic number as the pedestalfor TL seals.
eg. 01C6GR
Felt (Std seal if not specified)High temp. HT packing
Note: Felt supplied as part of cartridge
100250
1.6 0.8
Available for sizes to 300mm.Maximum speedsdn=150,000.Cartridge length L
The cartridge has the samebasic number as the bearing.
eg. 01C208EX
Split Rubber Seal(Used in Felt Groove) Grade 1 Grade 2
Part No Examples:
SRS 65 mm SRS 2-1/2"
100175
0.8 0.4
Available for sizes to 300mm.Maximum speedsdn=150,000Cartridge length L
The cartridge has the samebasic number as the bearing.
eg. 01C208EX
Grease Groove
- - -
Standard for sizes over300mm and normally forMarine applications.Cartridge length L.
Blanking Plate
- - -
Available for sizes to 300mm.Sizes to 90mm in Series 01and 02 can be fitted withthrust bearings, for shafttermination.
100°C is the maximum temperature for standard bearings.
Cartridges to 300mm are usually supplied with a general pur-pose felt seal. The felt groove will also accommodate HT pack-ing seals, lipped rubber seals or suitable blanking plates.
Triple labyrinth seals have precision non-rubbing characteristicsand are readily available on request to suit the more difficult seal-ing environments. Note that the cartridge end profile is differentfrom the felt groove.
For special applications seals may be made from other materialsand alternative special seals can be supplied to suit specific con-ditions.
COOPER SPLIT BEARINGS Seals
Page 1.282 Motion Technology
THE COOPER �22� SERIESNEW BEARING SERIES - Fits into your existing SAF, SNH, SNA or
Cooper Bearings leads the world in the design, manufac-ture and application of totally split roller bearings for proc-ess industries. When replacement is necessary, Cooperusers save valuable production time that otherwise wouldbe lost by the use of standard non-split roller bearings.Simple assembly of the two halves of the Cooper unitaround the shaft eliminates all special shaft machining andadaptors required with solid bearings.
WHY USE A SPLIT HOUSING AND NOT A SPLIT BEARING?
Cooper Bearings give you an alternative when replacingstandard spherical roller bearings. When change out be-comes necessary, you can buy the same replacement bear-ing or you can use the best solution to reduce downtimeproblems.
THE 22 SERIES CYLINDRICAL BEARING DESIGN
Cooper�s 22 series bearings have a cylindrical bore andclamp directly onto the shaft. The inner race, outer raceand roller cage assembly are axially split. The inner race isheld together with removable split clamping collars andthe outer race, which has a spherically machined O.D., isheld together with a self aligning ring. Two types of bear-ings are available; an expansion (EX) and a fixed (GR).The EX type is used as a radial bearing. The GR type isused to locate shafting as well as take radial and thrustloads without the need for a stabilising ring.
OTHER BENEFITS
Ease of axial expansionThe rollers move across the I.D. of a plain, hardened andlubricated stationary outer race. The spherical bearingdesign requires that the entire bearing move axially toaccommodate thermal expansion and contraction of theshafting. One fifth of the radial load must be appliedaxially to overcome the friction between the O.D. of theouter race and the bore of the housing before the shaftcan expand. The life of Cooper�s expansion cylindricalroller bearing is not impacted by axial loads.
Easy inspection and replacementNow all of the components are split, inspections andreplacements are carried out in the shortest period oftime.
Pre set mounted radial clearanceCooper manufactures its bearings to be mounted withoutthe need to refer to charts because we provide factoryset clearances. Proper installation of spherical rollerbearings requires you to measure and set internalclearances. This step takes time and creates the oppor-tunity for potential installation errors.
Easy to use computer selection diskCooper gives you a user friendly windows based selec-tion disk to make your selection as simple as possible.Its use will ensure acceptable performance and housingfit for your intended 22 series installation.
Technical ServiceCooper has a century of manufacturing experiencedevoted to split bearing technology. Call your nearestBSC branch for assistance with your 22 series applica-tion. Also, ask how many other ranges of Cooperbearings can provide split solutions to solid problems.
Page 1.283Motion Technology
THE COOPER �22� SERIES
SN-SNA Shaft Diameter Reference Dimensions (inches/mm Part (in) (mm) Bearing Only D B B C F EminNumber (in) (mm) (SN/SAF) (SN/SNA)
Cooper Roller Bearings - 22 Series
Maximum Shaft Size Range Bearing Rating Ibf/kN Speed (in) (mm) Dynamic,C Static,Cor Axial,Ca (rpm)
DU Bearings: Metric Range Bushes ....................................................... 1.285 Inch Range Bushes .......................................................... 1.288 Flanged Bushes ................................................................ 1.289 Thrust Washers & Strip .................................................... 1.290DX Bearings: Thrust Washers & Strip ..................................................... 1.291 Machinable Metric Range Bushes .................................... 1.292 Prefinished Metric Range Bushes .................................... 1.293 Range Bushes - Inch ......................................................... 1.294aGlacier Product Range .......................................................... 1.295Solid & Hollow Bronze: Continuous & Centrifugally Cast Bronze Bushing .......... 1.297 Solid & Hollow Stock Sizes & Weights ............................ 1.298 Fraser Bronze Bearings ................................................... 1.300Plastics ................................................................................... 1.303Orkot Composites.................................................................. 1.309Orkot TLM: Standard Size Range ......................................... 1.312Rod Ends................................................................................ 1.313Hydraulic Rod Ends............................................................... 1.317Rod Ends: Metric .................................................................. 1.319THK Link Ball Type BL ........................................................... 1.320Interchange Tables ................................................................ 1.322Radial Spherical..................................................................... 1.323
Page 1.285Motion Technology
PLAIN BEARINGS
DU Metric Range Bushes
DU and Associated Materials Basic Information
The DU bearing material incorporates a PTFE(polytetrafluoroethylene) and lead lining and is designedto operate without lubrication at temperatures between -200°C and +280°C. It can withstand specific loads up to250N/mm², dependent on conditions.
DU resists most solvents and many industrial liquids andgases; including water and oil, most of which improve itsperformance. It has negligible �stick-slip�, is tolerant ofdusty environments and does not accumulate static elec-tricity. It is a conductor of electricity and can resist moder-ate levels of nuclear radiation.
During normal operation, a thin film from the PTFE lining istransferred to the mating surface and maintained therethroughout the working life of the bearing. The backingmaterial of DU is normally mild steel, but a bronze backedversion, identified as DU(B), is available where corrosionresistance is important.
The Plain Bearing Designers� Handbook provides informa-tion about the rate at which lead is released from DU bearings.
Thermal Conductivity and Expansion
The poor thermal conductivity of plastics is one of the mainfactors which normally limits their use as dry bearings tolight duty applications.
However, due to its composite structure, the thermal con-ductivity of a DU bush, measured from bore to housing issimilar to that of steel and thus promotes the dissipation ofthe generated heat from the bearing surface. The circum-ferential thermal expansion of the DU material is also thesame as that for steel, with the result that throughout theoperating temperature range, adequate interference ismaintained in steel and cast iron housings.
DX is a steel backed, acetal co-polymer lined, compositebearings material designed for marginally lubricated op-eration and is particularly suitable where continuous oil lu-brication is uneconomic or inappropriate.
The bearing surface may be supplied indented for greaselubrication, or it may be plain for applications where fluidlubrication is available. The indented material surface,
DX Bearings
which should be filled with suitable grease during assem-bly, is designed to provide optimum distribution of the lu-bricant over the bearing surface. Dependent on condi-tions, DX can withstand temperatures from -40°C up to130°C for short periods and specific loads up to 140N/mm2.
DX is available in the form of wrapped bushes, thrust wash-ers, and strip. The wrapped bushes are available inprefinished or machinable form. The latter may be bored,reamed or broached to size after installation.
DX Thrust Washers and Strip
Part No. d D T H J Ta
Metric DX Thrust Washers
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
DX STRIP METRICIn lengths (L) of approx. 460mm
Group No. T (mm) W mm
BM 1.03-1.06 70
CM 1.52-1.55 100
DM 2.02-2.05 100
EM 2.53-2.56 100
* Imperial size DX Thrust Washers also available on request.
PLAIN BEARINGS Other Specialised Plain BearingMaterial within the Glacier Product Range
Material Type Forms available Material Structure Operating Applications InstallationConditions
GlacierDU�-Bbearingmaterial
GlacierHi-eX�bearingmaterial
SY�bearingmaterial
DEVA� -BM
(Strip Metal)
dry, mainte-nance-free non-magneticimprovedcorrosion-resistancecompared toGlacier DU(suitable for usein saltwater)
Full andmarginallubrication low-maintenance
Standard range ex-stock.DU-B has the same dynamic andstatic load characteristics as DU.In addition, DU-B bronze backingoffers: corrosion protection, suitablefor use in salt-water, non-magnetic.Under extreme loads, after removalof the DU bearing lining, additionalemergency running properties areprovided by the bronze backing -especially if lubricants are present.Protection against atmosphericattack, various salt solutions.
Housing tolerance: up to 5.5 H6,over 5.5 H7.Shaft tolerance: up to 4 h6
5 - 75 f 7above 80 h8
Suitable for use with unhardenedshafts.Mating surface finish:
Ra < 0.4 µm.Lubrication increases service life.May be used in water andhydraulic oils. Grease lubricationis not recommended. MoS
2filled lubricants not recom-mended.Press fitting of bushes:- use stepped mandrel- 15° / 20° lead-in chamfer on housing bore- lightly oil back of bush or housing bore- increase housing bore if there is additional plating on the back of the bearing for corrosion protection.Fixing: No additional measuresare required other than pressfitting. Adhesive bonding ispossible if required.
Temperature range: -150°C to+250°C. Maximum specific load:140 N/mm². Very high fatiguestrength under dynamic load(laboratory tests indicate valuesequivalent to conventionalcrankshaft bearing bearings). Hi-excan be manufactured with/withoutlubrication indents and with/withoutmachining allowance in the polymerlining. For grease lubrication theindents in the bearing surface act asa lubricant reservoir. unindentedmaterial is available for fullylubricated hydrodynamicapplications. The bearingperformance depends upon thelubricant and the operatingconditions. Hi-eX can be used innon lubricating fluids, water/oilemulsions, mineral oils to 150°C.Hi-eX is resistant to the acidicdegradation products which occurin mineral oils after prolonged hightemperature operation. Typicalapplications: diesel fuel injectionpump bearings, hydraulic radialpiston motor piston seat bearings.
A high performance material formarginal or fully lubricatedapplications.Limited dry running operationalso possible.Assembly tolerances as for DXmaterial.
Grease or oillubricated, low-maintenance
Conventional lubricants (grease, oil-also containing MoS
2) required.
Ludents filled with lubricants onassembly.Embossed grooves in place ofindents are possible.Max. temperature 250°C, max.specific load 300 N/mm².Particularly suitable for oscillatingmotion.Typical applications: Small endbushes, bing pin, flor- and rockerarmbushes.Rinning for bushes in agriculturalmachines, off-road machines.
Housing tolerance: H7.Shaft tolerance: h7/h8.Press-fit in housing.Shaft HB min. 250, surface finishRa < 0.8 µm.Bushes can be moduned afterinstallation for minimumtolerance requirements.
maintenance-free
Standard range, can be supplied atshort notice.Temperature range -150°C to+250°C.Maximum permissible static loading320 N/mm².Maximum dynamic load 120 N/mm².DEVA-BM, Steel backing + DEVA-metal bearing lining, offers the sametechnical characteristics at generallylower cost.Typical applications: water turbines,injection moulding machines, foodand beverage industry machines,packing machines, print machines,mechanical engineering, tyre mouldsetc.
Installation by pressing in with astepped mandrel.Housing bore: H7.Bearing OD: t6/u6.Bearing ID: H8/H9 afterinstallation.Shaft: d7.Shaft hardness: > 220 HB.Shaft surface finish:
Ra 0.2-0.8 µm.
PTFE-Pbsurface layer
PTFE-Pb
Tin-bronze
Steel backing
Bearingpolymer liningthickness 0.18to 0.26mm
Tin-bronzelayer 0.24 to0.36mm
Steel backing
PEEK + PTFE + filters, tin-bronze, steelbacking, with and without lubricationindents in surface. Can be machined asrequired.
CuPb10Sn10Composition:approx. 80% Cu 10% Pb 10% Sn
Steel backingwith approx.0.01-0.02mmcopper plated
Bearing surface(running-in film)
Solid Lubricant(Graphite)
Steel backing(Steel,stainless steel)
Bearing lining(Bronze)
Page 1.296 Motion Technology
Bronze
Material Type Forms available Material Structure Operating Applications InstallationConditions
PLAIN BEARINGS
DEVA� -Metal
(Material System)
DEVA-GLIDE�
GAR-MAX�
bearingmaterial
maintenance-free
DEVA metal bearing materials aresuitable for a wide range ofoperating conditions.The optimum material is determinedfrom the specified operatingconditions and bearings aremanufactured to the customer�sdrawings.Temperature range -
200°C to +900°C.Maximum static load 200 N/mm².Maximum dynamic load 100 N/mm².Maximum sliding speed V = 1.0 m/sMaximum P x V (50 N/mm² x 0.01m/s) = 0.5 N/mm² x m/s.Maximum P x V (2.0 N/mm² x 1.0 m/s) = 2.0 N/m² x m/s.Friction coefficient µ 0.08 to 0.15according to operating conditions.DEVA metal is particularly suitablefor low sliding speeds at highloadsand has excellent temperature andcorrosion-resistance. It is resistantto dirt ingress and edge loading.DEVA metal can be machined ifrequired.Typical applications: Mining andsteelworks, furnace construction,ventilators, foundry machines,sewage processing plants, water,steam and gas turbines, pumps andcompressors, food and beverageindustry machines, packingmachines, plant construction,mechanical handling etc.
Shrink fitting is recommended.Housing bore: H7.Bearing OD: r6/s6.Bearing ID: C8 for D8 afterinstallation.Shaft: d7.Shaft hardness: > 220 HB.Shaft surface finish:
Ra 0.2-0.8 µm.Other methods of installation arealso permissible, provided thatpermissible, provided thatpermanent, secure seating andthe required bearing clearanceare obtained.Additional lubrication is possible(for increased service life).
maintenance-free
The optimum material is determinedfrom the specified operatingconditions and bearings manufac-tured to the customer�s drawings.Temperature range -
100°C to +250°C.Maximum static load 150 N/mm².Maximum dynamic load 40 N/mm².Maximum sliding speed V = 0.4 m/s.Maximum P x V (40 N/mm² x 0.01 m/s) = 0.4 N/mm² x m/s.Maximum P x V (3.0 N/mm² x 0.4 m/s) = 1.2 N/mm² x m/s.Friction coefficient µ 0.07 to 0.18.devalgleit/DEVAGLIDE is particularlysuitabel for low movement frequencyapplicaitons with low sliding speeds,high loads and large dimensions.Typical applicaitons: marine steelconstruction projects, ofshoreindustry, mining and steelsworks,heavy machinery, crane andtransport systems, underground andopen-face mining, building and earth-moving machines etc.
Shrink fitting is recommended.Housing bore: H7.Bearing OD: s6.Bearing ID: E8 for H10 afterinstallation.Shaft: d8.Shaft hardness: > 220 HB.Shaft surface finish:
Ra 0.2-0.8 µm.
dry, mainte-nance-free
Standard range.Temperature range: -100°C to+160°C.Maximum static load: 200 N/mm².Highly shock resistance.Optimum performance under dryrunning conditions.V to 0.13 m/s dry, P x V to 0.9 N/mm² x m/s.V to 0.4 m/s, P x V to 1.1 N/mm² xm/s.Coefficient of frictionextremely lowand dependent on specific loading.Negligible stick-slip.Typical applicaitons: constructionmachines, diggers, graders,agricultural machines.
Ra 0.2-0.4 µm.Press fit bushes in housingusing stepped mandrel; noadditional fixing is required inthe normal temperature range.A 15°/20° lead-in chamfer isrequired on the housing forassembly.
A. W. Fraser Alloy 954 is a high strengthaluminium bronze conforming to therequirements of ASTM B505 for ContinuousCast and ASTM B271 for Centrifugal Cast Alloy95400.
Alloy 954 is a very hard and abrasion resistant,having excellent strength and wear resistancewith reasonable machining properties. Thesephysical properties remain good at elevatedtemperatures. General corrosion resistance isgood but under some circumstances may sufferdealuminification.
Alloy 954 is suitable for high strength bearings,and has good impact resistance, but poor anti-seizure properties requiring reliable full filmlubrication to prevent metal to metal contactand possible scoring.
The composition of A.W. Fraser Alloy 954 isstrictly controlled as are the casting conditions.Alloy 954 products are manufactured using thelatest continuous and centrifugal castingtechnology.
Page 1.297aMotion Technology
PLAIN BEARINGS Product Information Sheet
Fraser Bronze Alloy LG2 - LEADED GUNMETAL (85-5-5-5)ISSUE D
A. W. Fraser Alloy LG2 is a general purposeleaded gunmetal conforming to therequirements of B.S. 1400 - 1985 Alloy LG2.
LG2 has excellent machining properties,medium strength, good pressure tightness andis not subject to dezincification (Category IAlloy), and has reasonable corrosionresistance to seawater and brine, making itsuitable for pump and valve components.
LG2 is suitable for bearing having light loadsand low to medium speeds with adequatelubrication, and for very light duty gears whenloading is negligible.
The composition of A.W. Fraser Alloy LG2 isstrictly controlled as are the casting conditions.LG2 products are manufactured using the latestcontinuous and centrifugal casting technology.
SUMMARY OF PROPERTIES
Chemical Composition - Percent
ELEMENT NOMINALTin Sn 4.0 - 6.0 4.4Lead Pb 4.0 - 6.0 5.5Zinc Zn 4.0 - 6.0 5.5Nickel Ni 1.0 maximumIron Fe 0.30 maximumAluminium Al 0.005 maximumAntimony Sb 0.25 maximumCopper Cu Balance
Compressive Strength 0.1% Permanent Set 100 MPa (15,000 psi)Specific Gravity 8.8Machinability Rating (Free Machining Brass = 100) 84Max Operating Temperature 230°C (450°F)Stress Relieving Temperature 260°C (500°F)Time at Temperature 1 hour per 25mm of section thickness
Fraser Bronze Alloy PB1 - PHOSPHOR BRONZE (90-10)ISSUE C
A. W. Fraser Alloy PB1 is a phosphor bronzeconforming to the requirements of B.S.1400 -1985 Alloy PB1.
Alloy PB1 has good machining properties, highstrength and good corrosion resistance toseawater and brine, making it suitable for pumpand valve components.
PB1 is suitable for heavy duty gears andwormwheels with high working loads and highspeeds and adequate lubrication andalignment.
The composition of A.W. Fraser Alloy PB1 isstrictly controlled as are the casting conditions.PB1 products are manufactured using the latestcontinuous and centrifugal casting technology.
SUMMARY OF PROPERTIES
Chemical Composition - Percent
ELEMENT NOMINALTin Sn 10.0 - 11.0 10.5Lead Pb 0.25 maximumZinc Zn 0.05 maximumNickel Ni 0.10 maximumIron Fe 0.10 maximumAluminium Al 0.01 maximumAntimony Sb 0.50 - 1.0 0.7Copper Cu Balance
Specific Gravity 8.8Machinability Rating (Free Machining Brass = 100) 30Max Operating Temperature 250°CStress Relieving Temperature 260°CTime at Temperature 1 hour per 25mm of section thickness
Specifications:Fraser Bronze bearings are manufactured from continuously cast bronze conformingto AS 1565 grade C83600 (BS 1400 LG2).
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAA
Mechanical
Properties
Max.OperatingTemp.
230°C
Max. UnitPressure Load
270 MPa
TensileStrength
270 - 230 MPa
Proof Stress0.2%
100 - 140 MPa
Elongation 13 - 30%
HardnessBrinell
75 - 90 BHN
Coefficient ofFriction
0.14 - 0.8
ThermalCoefficient ofExpansion
19.6 10 per °C
Tolerances
Imp.inch
Metricmm
InsideDiameter
-0.0005 -0.01
0.0015 0.04
OutsideDiameter
0.002 0.06
0.004 0.1
Length 0.01 0.25
-0.01 -0.25
x 6
Part No. Example: FB 8 x 10 x 10 = 8mm ID x 10mm OD x 10mm Length
FRASER BRONZE
Page 1.303Motion Technology
PLAIN BEARINGS Engineering Plastics
INTRODUCTION
Today�s industrial processes demand bearing products whichare capable of operating in environments where traditional bear-ing materials fail to perform.
Engineering plastics such as various grades of Nylon, Acetals,and Ultra High Molecular Weight Polyethylene and other Poly-mer formulations, are designed to provide great strength, ther-mal and chemical resistance, coupled with high load and lowfrictional properties.
Some detail on the more popular materials and their applica-tions follow. However, BSC, in consultation with our principalmanufacturers, can design a product to suit applications as re-quired.
Page 1.304 Motion TechnologyLUBRON
PLAIN BEARINGS Engineering Plastics
LUBRON®
SOLID ROD (Nominal O.D. Sizes) Part Number O.D. Size Metric Inch
Part Number O.D. Size Metric Inch
LUB 6MM LUB 1/4LUB 10MM LUB 3/8LUB 13MM LUB 1/2LUB 16MM LUB 5/8LUB 20MM LUB 3/4LUB 22MM LUB 7/8LUB 25MM LUB 1LUB 30MM LUB 1-1/8LUB 35MM LUB 1-1/4LUB 38MM LUB 1-3/8LUB 40MM LUB 1-1/2LUB 45MM LUB 1-3/4
LUB 50MM LUB 2LUB 55MM LUB 2-1/8LUB 60MM LUB 2-1/4LUB 65MM LUB 2-1/2LUB 70MM LUB 2-3/4LUB 75MM LUB 2-7/8LUB 80MM LUB 3LUB 90MM LUB 3-1/2LUB 100MM LUB 4LUB 120MM LUB 4-1/2LUB 125MM LUB 4-3/4LUB 130MM LUB 5
BSC Lubron® is a self lubricating bearingmaterial manufactured from a high impactresistant filled nylon compound. This is atough and resilient friction modified type IIgrade nylon filled with graphite, providing lowfrictional properties and low bearing heat gen-eration even when operating under the mostrugged conditions. Dimensional stability andcompressive strength is maintained throughminimal moisture absorption.
These exceptional properties of BSC Lubron®
open up new concepts of design application.
Properties and Advantages of Lubron® Self-Lubricating Bearing Material.
Wear and Abrasion Resistance LUBRON® outlasts metal bearings in gritty or dirty conditions because of the tough,slightly yielding surface.
Resilience and Toughness LUBRON® withstands shock loads that cause other bearing materials to fail frompoundout or fatigue.
Excellent Strength to Weight Ratio Where weight is critical, LUBRON® at 1/8 the weight of bronze, is a valuable bearingmaterial.
Easily Machined ... by oils, greases etc. when the bush is operated dry or with the product liquidacting as a lubricant. In the event of wear particles of LUBRON® beingobjectionable to product appearance, natural NYLON can be supplied.
Chemical Resistance LUBRON® resists strong reagents and can be used in many conditions where metalparts will corrode. It is particularly resistant to alkalis and organic solvents, enablingLUBRON® to function satisfactorily in detergents and gasoline without lubrication.
Low Heat Generation This stems from the naturally low co-efficient of friction of Nylon, improved stillfurther by the addition of graphite or molybdenum disulphide.
Mechanical Vibration and ... is affected by the natural resilience of LUBRON® and the absence of metal toNoise Dampening metal contact.
Dry Operation ... Where lubrication is difficult or impractical, LUBRON® will operate reliably atreasonable speeds.
Good Electrical Insulation ...LUBRON® insulates shafting - particularly advantageous in electroplatingapplications.
Range A comprehensive range of bushes machined to sizes generally used by industry isavailable from Bearing Service distributors.
Special sizes and other parts - such as Gears, Cams, Pulleys, Wear Strips etc., can be produced to order or ma-chined by the customer from LUBRON® rod or sections.
*LUBRON is the registered trade name for self-lubricating grades of Nylon
Page 1.305Motion Technology
As the workhorse of engineering plastics, due to its wide variety of mechanical properties, nylon has been in demand for anumber of years as a bearing material. Because of its good abrasion resistance, chemical, thermal and low friction properties, ithas earned a reputation for its resistance to wear. Hardness and strength, yet toughness and tenacity are the combination thatmakes nylon so versatile and the chosen product for many applications.
- Useful working temperature range of -40°C to +140°C- Self lubricating properties can be further enhanced with fillers- Available in a wide variety of grades to suit specific applications- Typical applications include bushes, bearings, gears, cams, pulleys and wear pads
STANDARD EXTRUDED GRADES
Type 6 : Natural & BlackType 6.6 : Natural & BlackType 11 : NaturalType 12 : NaturalType 46 : High temperature
PLAIN BEARINGS Engineering Plastics
NYLON (P.A. - POLYAMIDE)
MONOMER CAST GRADES
Natural & Black :MoS2 : Molybdenum DisulphideYellow : Oil filledGlass filled : 30%6/12 : High Impact
NYLON (POLYAMIDE)
RODS...TYPE 6.6 & 65 min - 150 minSHEETS...1mm - 6mmNATURALMONOMER CAST NYLON RODS...40mm - 600mmNATURAL MOS2 - OIL FILLEDSHEETS...10mm - 100mm THICKNATURAL MOS2 - OIL FILLEDTUBES...up to 500mm DIASPECIALTY SHAPES AVAILABLE ON REQUEST
ACETAL (P.O.M)Acetals display good impact resistance, dimensional stability, high mechanical strength with natural lubricity and outstandingsurface hardness. They have a high dielectric strength and are resistant to many solvents. Moisture absorption is very low andhas little or no effect on strength properties. Acetals have a wide working temperature range of -45°C to +100°C.
- Copolymer grades are beat suited for high temperature water applications- Acetals are widely used as parts in the food industry*- Typical applications include bearings, gears, bushing and wear resistant components* Not all acetals are F.D.A. approved
This material is high density polyethylene with an average molecular weight of 6,000,000 which results in this materialhaving high physical strength and increased chemical stability. The properties that make this superior to otherplastics are abrasion resistance, impact resistance, extremely low coefficient of friction, self lubrication and chemicalresistance, with a wide working temperature range of -269°C to +80°C.
- F.D.A. approval for food and drug industries- Excellent general purpose material- Superior wear resistance and friction properties- Typical applications include hopper lining, chain wear strip, rollers, bottle stars and feed screws, cryogenic parts
A slow spiral drill with polished flutes isideal as the large flute areas permits afree discharge of chips. The point angleshould be 80° to 90° included with a lipclearance of from 10° to 15°. Generalpurpose drills can be made suitable bygrinding the point angles to 118°included, and lip clearance of from 12° to16°. The lip rake should be ground off,and the web thinned.
Dimensional accuracy will be achievedby holding the work in a jig, or in theevent of having to drill a piece with anumber of holes, a sizing pin should beplaced in each hole after drilling. 2,000to 3,000 rpm will be suitable speed fordrills in the general range.
Reaming
Spiral fluted reamers, well sharpened to agreater than normal clearance angle, willproduce good results. 0.015� is an idealreaming allowance. Shrinkage of holediameter of .004� to .005� under thereamer size should be anticipated.
Sawing
As in other machining operations,sawing does not present problemsproviding the blade is sharp and thework is kept cool. A band-saw is idealbecause the length of blade permitsbetter heat dissipation than otherblades, such as hack-saws and circularsaws. A coolant is always beneficial, butdry cutting is quite practical, using askip-tooth metal cutting blade of 4 to 6t.p.l.
Turning
Since overheating leads to instability,precautions must be taken to keep theheat generated in the work as low aspossible. This position can be achievedby ensuring tool sharpness, andproviding generous clearances.
High speeds and low feeds, a tool whereonly the cutting edge contacts the workto prevent rubbing and therefore loss offinish and accuracy and the use of asoluble oil type coolant all contributetowards a cool workpiece and asatisfactory result.
Tools as generally recommended for themachining of soft metals like aluminiumare suitable.
Roughing cuts are not normally requiredas a good finish can be produced fromboth light and heavy cuts, using this toolform.
Carbide tip tools are preferable so longas the cutting edges are carefully honed.
Tangent type box tools, or V-rests, willgive good results. The cutter should beslightly below centre, ground to a radiusand have a positive rake of from 0° to 5°.
Plunge forming is practical, providingthe cutting surface of the tool is no widerthan the minimum work diameter.Larger areas can be formed by usingtwo or more tools, or by supporting thestock so that it will not be deflected.Either circular or dove-tail form tools canbe used with a front clearance of from10° to 15°. Negative backrake of from 0°to 2° is also recommended.
The feed rate of the forming tool will beinfluenced by the deflection of the stock.Between .004� and .010� per spindlerevolution will be found suitable. Screwmachining work will be helped bybreaking up the swarf by using serratedcams that produce a momentaryinterruption of the feed. Parting off isbest performed with conventional bladetype tools. The blade would be squareto the work, otherwise, a convex orconcave surface will result. Keep theoverhang to a minimum and allow ampleside clearance to prevent rubbing. Zeroto negative backrake should be applied.
Page 1.309Motion Technology
PLAIN BEARINGS Orkot Composites
Fabric Reinforced Thermoset Composite
�Orkot� is manufactured by impregnating cloths or fibres with ther-mosetting resin.
The composite�s physical and mechanical properties make Orkotan ideal bearing material.
By adjusting the composition of the material, ie the reinforce-ment and resin used, the physical and chemical properties arechanged to suit specific applications.
Orkot�s chemical resistance properties allow process liquors,solvents, sludges, etc, to be used as lubricants.
Orkot has exceptional wear resistance properties with or withoutlubrication.
TL grades in particular are ideal for water applications having anextremely low rate of moisture absorption and therefore negligi-ble dimensional change.
Orkot has a low density and its strength/weight ratio comparesfavourably with other materials.
GradesSL Ideal for general purpose wear pads, bushes, etc. With
low swell in water, acids and chemical solutions, pro-duce a good machining finish and can be supplied oildipped. Approved for railway use.
TL Manufactured from medium weave fabrics with excel-lent mechanical strength and possessing exceptionaldimensional stability when immersed in water, acids andchemical solutions.
TX Supplied as finished components for low friction slidepads and bearings. Incorporating a unique low frictioncomposite bearing surface.
All grades of �Orkot� are available with a solid lubricant incorpo-rated. These grades contain either graphite, PTFE or molybde-num disulphide dispersed evenly throughout the material so thatwear of a bearing surface continually releases further lubricant.These materials are recommended for use where other forms oflubrication are either not desirable or are erratic, intermittent ornon-existent: In addition, in numerous cases where the mainte-nance of lubricant films is difficult, this type of bearing has beenfound to give improved performance. Each grade of materialmay also be impregnated or coated with mineral oil.
ApplicationsTypical applications include:-
n Bushes n Bearings n Slide Padsn Fabricated Componentsn Thermal Insulation Components
Within industries such as aerospace, agriculture, automotive,construction, food, hydraulic, marine, mechanical handling, min-ing, nuclear, railway and water engineering.
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAA
AAAAAAAAAAAA
AA
Strength To Weight ComparisonsStrength To Weight Comparisons
Material Density CompressiveStrength
StrengthWeightRatio
g/cm lbs/in p.s.i. N/mm
Stainless Steel 7.85 0.283 150000 1034 19100
Aluminium Alloy 2.3 0.083 40000 276 17400
Magnesium Alloy 1.81 0.065 35000 241 19300
Typical Hardwoods 0.7 0.025 9250 64 13200
Typical Softwoods 0.45 0.016 6500 45 14500
'Orkot TL' 1.25 0.047 50000 345 38000
3 3 2
Page 1.310 Motion Technology
Construction Application
PLAIN BEARINGS
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAA
AAAAAA
Physical and MechanicalPhysical and MechanicalPropertiesProperties
Grade SL TL TX
Tensile Strength (lb/sq.in.) (N/mm )
5,80040
8,00055
8,00055
Compressive Strength(i) Normal to laminate (lb./sq.in.) (N/mm )(ii) Parallel to laminate (lb./sq.in.) (N/mm )
34,000235
14,500100
50,000345
14,00097
50,000345
14,00097
Elastic Modulus (bending) (lb./sq.in. x 10 ) (N/mm x 10 )
0.350.24
0.280.19
0.260.18
Impact StrengthNormal to laminate (Notched Izod) ft lb/in. BS 2782 & ISO 179-1982
>10.0 >10.0 >10.0
Shear Strength (lb./sq.in.) (N/mm )
8,70060
12,00083
12,00083
Hardness Rockwell M 90 100 100
Density (g/cm ) 1.25 1.25 1.25
Swell in Water (% Wall Thickness) <0.1 <0.1 <0.1
The above grades represent the base grades incorporatingstandard resins without the addition of dry lubricants. Thesegrades can be offered with PTFE, MOS as dry lubricants and forimproved resistance against acids and alkalis modified resins areused.
2
2
6
42
2
3
2
Orkot Composites
Railway Track Bogie
Bushes for a butterfly valve
TLM Marine Bearings
Availability
�Orkot� is available in tube, rod or sheet form, or it can be sup-plied fully machined to customer�s own drawing. Our modernmachining facility is capable of dealing with large schedule or-ders or small quantity runs.
The following range of maximum and minimum sizes are avail-able:-
TUBE
Minimum bore 5.00mmMaximum O.D. 2000mm
Larger sizes available on requestStandard Lengths 670mm
Larger sizes available on request
ROD
Minimum diameter 13mmMaximum diameter 305mm
Larger sizes available on requestStandard Lengths 250mm and 500mm
Larger sizes available on request
SHEET
Minimum thickness 1.50mmMaximum thickness 102mm
Thicker to special orderMaximum width 610mmMaximum lengths 2000mm
2
Page 1.311Motion Technology
PLAIN BEARINGS Orkot Composites
ORKOT - FOR THE WATER INDUSTRY
Bearings and Slide Pads
Orkot is fabric reinforced thermoset composite which offers ben-efits in the water control and processing industry, it can be filledwith solid lubricants or a unique low friction layer can be incorpo-rated to reduce the coefficient of friction. The material has highmechanical strength with no swell in water and no change to themechanical properties.
Some Applications where Orkot has been usedsuccessfully
Water Control General BearingsBearings
Dock Gate Vertical Pump ShaftLock Gates Butterfly ValvesStorm Barriers HydraulicsFlood Control Gates
Low Friction Corrosion FreePollution Free Easily MachinedSelf Lubricating Easily FittedTolerates High Edge Load Tolerates High Shock LoadLong Life High Load CapabilitiesLow Moisture Absorption Potable Water ApprovalLarge Size Range Immediate AvailabilityNon-Toxic Protects the Shaft
Roll Covering
Most sizes can be handled in our machine shops but for excep-tionally large rolls please contact our Sales Department.
Special Products
Special components can be manufactured to customers� draw-ings from all grades of �Orkot�. Please consult Orkot�s TechnicalService Department for special applications.
Machining
�Orkot� is really machinable by conventional engineering tech-niques and, as a general guide, may be treated as brass or lig-num vitae but should be machined dry without coolant.
For turning, tungsten carbide-tipped tools should be used to ob-tain a fine finish. High-speed steel tools can be used for machin-ing where accuracy below 0.13mm is not required and for small-quantity production.
No asbestos is used in the manufacture of �Orkot� products andthe material is completely non-toxic. It is, however, advisable touse adequate dust extraction when machining �Orkot�.
Tool Cutting Angles
Top Rake 0° to 5°Side Rake 5° to 7°Front Rake 5°
Cutting Speeds
For good surface finish 6.1 m/sec.For longer tool life 5.1 - 5.6 m/sec.For form tools 4.6 - 6.1 m/sec.
Cutting Feeds
Rough turning 0.51 - 0.76 mm per rev.Finishing cut 0.25 - 0.38 mm per rev.
Milling
This follows metal machining techniques and cutting speeds areas for turning. Feeds should be limited to 0.25 - 0.38 mm pertooth to prolong cutter life and reduce excessive heat build-up.
Drilling
This should be carried out with high-speed tungsten twists at 0.5- 0.6 m/sec peripheral speed. Feed should be limited to 51 - 76mm per minute.
A more detailed machining data sheet is available on request.
Page 1.312 Motion Technology
PLAIN BEARINGS Orkot TLM : Standard Size Range
TUBEStandard Length - 26 inches
(660mm)
Finish OD x ID
TLM 1 x 1/2TLM 1-1/4 x 3/4TLM 1-1/2 x 3-4TLM 1-1/2 x 1TLM 1-3/4 x 1TLM 1-3/4 x 1-1/4TLM 2 x 1TLM 2-1/4 x 1-1/2TLM 2-1/4 x 1-3/4TLM 2-1/2 x 3/4TLM 2-1/2 x 1TLM 2-1/2 x 1-1/2TLM 2-1/2 x 1-3/4TLM 2-1/2 x 2TLM 2-3/4 x 1-3/4TLM 2-3/4 x 2TLM 3 x 1TLM 3 x 1-1/2TLM 3 x 2TLM 3 x 2-1/4TLM 3 x 2-1/2TLM 3-1/4 x 2-1/4TLM 3-1/4 x 2-1/2TLM 3-1/2 x 1-1/2TLM 3-1/2 x 2-1/2TLM 3-1/2 x 3TLM 3-3/4 x 2-3/4TLM 3-3/4 x 3TLM 4 x 2TLM 4 x 2-3/4TLM 4 x 3TLM 4-1/4 x 3-1/2TLM 4-3/8 x 3-5/8TLM 4-1/2 x 3TLM 4-1/2 x 3-1/2TLM 4-5/8 x 2-7/8TLM 4-3/4 x 3-3/4TLM 5 x 2TLM 5 x 3TLM 5 x 4TLM 5-1/2 x 3TLM 5-3/4 x 4-1/2TLM 5-3/4 x 5TLM 6 x 5TLM 7 x 5
1) For left-hand thread, the letter �R� is replaced by �L� e.g. GIL...2) Cannot be relubricated3) Relubrication via a lubricating hole in the housing4) Thread end or thread undercut at manufacturer�s discretion5) Housing capacity
Female Rod End Metric
Sliding Contact Surface: Steel to Steel
Rod end manufactured to DIN 648Dimension series K-ISO6126
Page 1.314 Motion Technology
PLAIN BEARINGS Rod EndsSeries GAR..DO, GAR..DO-2RS
Designation1) Dimensions (mm) Chamfer Basic Load Ratings Radial Massd D B dk d1 d2 d3 h C1 a l1 l2 l7 dim. dyn stat. internal
1) For left-hand thread, the letter �R� is replaced by �L� e.g. GIL...2) Cannot be relubricated3) Relubrication via a lubricating hole in the housing4) Housing capacity
Male Rod End Metric
Sliding Contact Surface: Steel to Steel
Rod end manufactured to DIN 648Dimension series K-ISO6126
Page 1.315Motion Technology
PLAIN BEARINGS Rod EndsSeries GIKFR..PB
Designation1) Dimensions (mm) Chamfer Basic Load Ratings Radial Massd2) D B dk d1 d2 d3 d4 h1 C1 a l3 l4 l5 l7 d5 W dim. dyn stat. internal
1) For left-hand thread, the letter �R� is replaced by �L� e.g. GIKFL..2) Bore tolerance: H7 (arithmetical mean value)3) Not included in DIN 648, dimension series K4) Housing capacity
Female Rod End Metric
Sliding Contact Surface: Steel to Bronze
Rod end manufactured to DIN 648Dimension series K-ISO6126
Page 1.316 Motion Technology
PLAIN BEARINGS Rod EndsSeries GAKFR..PB
Designation1) Dimensions (mm) Chamfer Basic Load Ratings Radial Massd2) D B dk d1 d2 d3 h C1 a l1 l2 l7 dim. dyn stat. internal
1) For left-hand thread, the letter �R� is replaced by �L� e.g. GIKFL..2) Bore tolerance: H7 (arithmetical mean value)3) Not included in DIN 648, dimension series K4) Housing capacity
Male Rod End Metric
Sliding Contact Surface: Steel to Bronze
Rod end manufactured to DIN 648Dimension series K-ISO6126
Page 1.317Motion Technology
PLAIN BEARINGS Hydraulic Rod EndsSeries GIHN-K..LO
Designation Dimensions (mm) Basic Load Ratings Radial Nominal Screws to Tighten -Massd1) D B dk d1 d2 d3 d4 h1 C1 a l3 l4 l7 d5 C2 dyn stat. internal cyl. DIN 912-8.8 ing torque
1) Bore tolerance: H72) Cannot be relubricated3) Not included in DIN 243384) Cylindrical across whole dimension d5) Values as for dimension table on page 776) Thread end or thread undercut at manufacturer�s discretion7) DIN 912-10.98) Housing capacity
SLIDING CONTACT SURFACE
Steel/steel Hydraulic rod ends with internal thread according to DIN 24 338. Housings madefrom forged steel up to nominal size 50, from nominal size 63 of spheroidal graphitecast iron. Spherical plain bearing fixed in housing by snap rings. Thread clampingby two hexagon socket screws to DIN 912-8.8 or 10.9.
For standard hydraulic cylinders to CETOP recommendation RP 58 H; DIN 24 333;DIN 24 336; ISO/DIS 6020 I; ISO/DIS 6022.
Page 1.318 Motion Technology
PLAIN BEARINGS Hydraulic Rod EndsSeries GF..DO
Designation Dimensions (mm) Chamfer Basic Load Ratings Radial Massd D B d
Steel/steel Rod ends with rectangular welding face, housings up to nominal size 50 made fromforged steel St 52-3. Spherical plain bearings to DIN 648, dimension series E, fixed inhousing by snap rings.
Rod end with very sturdy housing design for welding onto hydraulic cylinder bottoms,usable in plain and equipment engineering and in other welded constructions. Thespherical plain bearing can be removed.
THK rod ends are self-aligning bearings using a spherical inner ring which hasbeen given the same accuracy and hardness as a bearing steel ball. The slidingsurfaces are a combination of a spherical inner ring finished to mirror finish anda rational holder, so that very smooth rotation and oscillation movement withoutlooseness can be obtained.
Type PHS (with female thread)With this construction: a special copper alloy with good running-in characteris-tics is inserted between the color-chromated holder and the hard chrome-platedspherical inner ring, so that the stiffness is high and the wear resistance and thecorrosion resistance are high.
The grease nipple on the holder permits suitable lubrication of the slide sur-faces.
Type POS (with male thread)This is a high-stiffness rod end with a male thread for the holder instead of thefemale thread of the type PHS.
Model Thread S Main Dimensions mm Ball Dia. i No. JIS Gr 2 d D B B 1 d1 L I 1 L 1 L 2 W D 2 D 3 r mm inch
±0.1 0 0-0.1 -0.1
Type PHS
1) Accuracy standardsClassification as shown below is madeaccording to the dimension tolerance for theinner diameter d of the spherical inner ring.
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AccuracyClass
DimensionTolerance for d
AccuracySymbol
CommercialType
+0.063-0.012
C
High Grade H7 NoSymbol
2) Left hand thread is indicated by �L� at the end of the code number. This is stamped at thespanner application part of the holder on the product. Example:
PHS10 C L
Model No.b
Accuracy Symbolb
Left-hand Threadb
3) Lubrication can be executed at suitable intervals via the grease nipple.
Type POS
1) Accuracy standardsClassification as shown on table above (referto Type PHS) is made according to thedimension tolerance for the inner diameter d ofthe spherical inner ring.
Model d Thread S Main Dimensions (mm) Ball Dia. i No. JIS Gr 2 D B B
1 d
1L L
1L
2r mm inch
±0.1 0-0.1
2) Lubrication for POS5, 6 is executed via theoil hole of the holder, while the grease nipple isused for the other sizes.
Notes:1. For left hand threads add �L� to prefix. Example: ML4SB2. For grease fittings add �Z� to suffix. Example: M6SBZ3. For Stud Type Rod Ends, add �Y� to suffix. Example F6SBY4. Larger sizes are available. Details upon request.
All Dimensions in Inches
REVIEW OF POPULAR ROD END SERIESCM / CF ECONOMY SERIES
FEATURES: LOW PRICE, 2 PIECE STEEL ON STEEL ROD ENDAPPLICATIONS: TRUCK, BUS AND RECREATIONAL VEHICLE LINKAGES
M-SB / F-SB COMMERCIAL SERIES
FEATURES: 3 PIECE DESIGN WITH SINTERED BRONZE SELF LUBERACE
APPLICATIONS: MOST POPULAR GENERAL INDUSTRIAL SERIES
SCM-T / SCF-T STAINLESS SERIES
FEATURES: STAINLESS STEEL BALL AND BODY, TEFLONFABRIC LINER
FEATURES: 3 PIECE, DESIGNED WITH 52100 BEARING STEEL BALL,ALLOY RACE, LOW CARBON OR 4130 (PREFIX-X) STEELBODY. AVAILABLE WITH THE POPULAR TEFLON LINER(ADD SUFFIX-T). �J� SERIES HAS A STANDARD SHANK.�RS� SERIES HAS A HEAVY SHANK.
APPLICATIONS: RACE CARS AND PRECISION MACHINERY.
ALJM / ALRSM ALUMINIUM SERIES
FEATURES: BASICALLY A �JM� OR �RSM� SERIES ROD END WITH A REDANODIZED ALUMINIUM BODY. TOTAL WEIGHT IS LESSTHAN HALF THAT OF THE STANDARD ROD END YET STATICCAPACITY IS HIGHER.
APPLICATIONS: RACE CARS WHERE WEIGHT IS A CRITICAL CONCERN.
Part No. Chrome Stainless Phosphor NickelSize Steel Steel Bronze Cad
Metric
Imperial
Note: Sizes not listed in Stainless Steel, Phosper Bronze and Nickelcad may be available to special order. Larger Sizes are also available. Contact your nearest BSC branch for details.
Page 1.327Motion Technology
ACCESSORIES
3MM X 3MM3MM X 5MM3.5MM X 5MM4MM X 4MM4MM X 6MM4MM X 8MM4.5MM X 4.5MM4.5MM X 6MM5MM X 5MM5MM X 8MM5MM X 10MM5.5MM X 5.5MM5.5MM X 8MM6MM X 6MM6MM X 8MM6MM X 12MM6.5MM X 6.5MM6.5MM X 9MM7MM X 7MM7MM X 10MM7MM X 14MM7.5MM X 7.5MM7.5MM X 11MM8MM X 8MM8MM X 12MM9MM X 9MM9MM X 14MM10MM X 10MM10MM X 14MM11MM X 11MM11MM X 15MM12MM X 12MM12MM X 18MM13MM X 13MM13MM X 20MM14MM X 14MM14MM X 20MM15MM X 15MM
5/32 X 5/32 3/16 X 3/16 7/32 X 7/32 1/4 X 1/4 9/32 X 9/32 5/16 X 5/1611/32 X 11/32 3/8 X 3/813/32 X 13/32 7/16 X 7/1615/32 X 15/32 1/2 X 1/217/32 X 17/32 9/16 X 9/1619/32 X 19/32 5/8 X 5/811/16 X 11/16 3/4 X 3/413/16 X 13/16 7/8 X 7/815/16 X 15/16 1 X 1
15MM X 22MM16MM X 16MM16MM X 24MM17MM X 17MM17MM X 24MM18MM X 18MM18MM X 26MM19MM X 19MM19MM X 28MM20MM X 20MM20MM X 30MM21MM X 21MM21MM X 30MM22MM X 22MM22MM X 34MM23MM X 23MM23MM X 34MM24MM X 24MM24MM X 36MM25MM X 25MM25MM X 36MM26MM X 26MM26MM X 40MM28MM X 28MM28MM X 44MM30MM X 30MM30MM X 48MM32MM X 32MM32MM X 52MM34MM X 34MM34MM X 55MM36MM X 36MM36MM X 58MM38MM X 38MM38MM X 62MM40MM X 40MM40MM X 65MM
Metric Rollers - CylindricalPart No. in MMDiameter x Length
Part No. in MMDiameter x Length
Imperial Rollers -Cylindrical
Part No. in InchesDiameter x Length
Cynlindrical Rollers: Imperial & Metric
Note: Larger sizes available. Contact yournearest BSC branch for further details.
Page 1.328 Motion Technology
ACCESSORIES
1MM X 5.8MM1MM X 6.8MM1MM X 7.8MM1MM X 9.8MM1.5MM X 5.8MM1.5MM X 6.8MM1.5MM X 7.8MM1.5MM X 9.8MM1.5MM x 11.8MM1.5MM X 13.8MM2MM X 6.8MM2MM X 7.8MM2MM X 9.8MM2MM X 11.8MM2MM X 13.8MM2MM X 15.8MM2MM X 17.8MM2MM X 19.8MM2MM X 21.8MM2.5MM X 7.8MM2.5MM X 9.8MM2.5MM X 11.8MM2.5MM X 13.8MM2.5MM X 15.8MM2.5MM X 17.8MM2.5MM X 19.8MM2.5MM X 21.8MM2.5MM X 23.8MM3MM X 9.8MM3MM X 11.8MM3MM X 13.8MM3MM X 15.8MM3MM X 17.8MM3MM X 19.8MM3MM X 21.8MM3MM X 22.8MM3MM X 23.8MM3MM X 25.8MM3MM X 27.8MM3MM X 29.8MM3.5MM X 11.8MM3.5MM X 13.8MM3.5MM X 15.8MM3.5MM X 17.8MM3.5MM X 19.8MM3.5MM X 21.8MM3.5MM X 23.8MM
.0469 X .250
.0469 X .280
.0469 X .310
.0625 X .280
.0625 X .406
.0625 X .440
.0625 X .500
.0625 X .530
.0627 X .250
.0627 X .370
.0627 X .490
.0713 X .530
.0721 X .478
.0771 X .745
.0772 X .505
.0781 X .380
.0781 X .440
.0781 X .500
.0781 X .620
.0781 X .690
.0781 X .750
.0785 X .640
.0792 X .396
.0859 X .410
.0907 X .745
.0911 X .810
.0922 X .707
.0923 X .400
.0928 X .620
.0932 X .644
.0937 X .700
.0938 X .416
.0938 X .380
.0938 X .440
.0938 X .500
.0938 X .560
.0938 X .620
.0938 X .690
.0938 X .750
.0938 X .781
.0938 X .810
.0938 X .880
.0940 X .344
.0940 X .494
.0950 X .500
.0950 X .520
.1012 X .572
.1040 X .396
.1050 X .310
Needle Rollers - MetricPart No.
Diameter x Length
3.5MM X 25.8MM3.5MM X 27.8MM3.5MM X 29.8MM3.5MM X 31.8MM3.5MM X 34.8MM4MM X 11.8MM4MM X 13.8MM4MM X 15.8MM4MM X 17.8MM4MM X 19.8MM4MM X 21.8MM4MM X 23.8MM4MM X 25.8MM4MM X 27.8MM4MM X 29.8MM4MM X 31.8MM4MM X 34.8MM4MM X 39.8MM4.5MM X 17.8MM4.5MM X 19.8MM4.5MM X 21.8MM4.5MM X 23.8MM4.5MM X 25.8MM4.5MM X 29.8MM4.5MM X 31.8MM4.5MM X 34.8MM4.5MM X 37.8MM4.5MM X 39.8MM4.5MM X 44.8MM5MM X 15.8MM5MM X 19.8MM5MM X 21.8MM5MM X 23.8MM5MM X 25.8MM5MM X 27.8MM5MM X 29.8MM5MM X 34.8MM5MM X 39.8MM5MM X 49.8MM6MM X 17.8MM6MM X 21.8MM6MM X 22MM6MM X 23.8MM6MM X 25MM6MM X 25.8MM6MM X 39.8MM
Part No.Diameter x Length
Needle Rollers - InchesPart No.
Diameter x LengthPart No.
Diameter x Length
.1094 X .440
.1094 X .750
.1244 X .900
.1250 X .460
.1250 X .490
.1250 x .500
.1250 x .615
.1250 x .690
.1250 x .750
.1250 x .850
.1250 x .938
.1250 x .940
.1250 x 1.000
.1250 x 1.125
.1250 x 1.250
.1548 x .958
.1562 X .656
.1562 X .750
.1562 X .880
.1562 X .900
.1562 x 1.000
.1562 x 1.120
.1562 x 1.250
.1582 X .562
.1582 X .740
.1582 X 1.014
.1872 X 1.187
.1875 x .527
.1875 x .750
.1875 x .880
.1875 x 1.000
.1875 x 1.120
.1875 x 1.125
.1875 x 1.187
.1875 x 1.250
.1875 x 1.375
.1905 X .500
.1905 X .443
.1960 X .495
.2182 x .752
.2187 x .750
.2188 X 1.120
.2188 X 1.250
.2188 X 1.500
.2188 X 1.750
.2325 x 1.000
.2500 x 1.000
.2500 X 1.190
.2500 X 2.000
The figure shows and example of a ball-end needle roller.
Needle Rollers: Metric and Inch
Note: Other sizes available. Contact yournearest BSC branch for further details.
H HE,HS,HA H H HE,HS HE,HS L L D1 D1 S S Self-Aligning Spherical Roller Bearings HA HA Ball Bearings
mm in. mm in. mm in. mm in. mm in.
1) Adapter numbers apply to adapter sleeve, lock-nut, and lock-washer assemblies.2) The thread size of HE211 X is M55x1.5 and differs from the standard (M55x2.0).3) The thread size of HE311 X is M55x1.5 and differs from the standard (M55x2.0).
HA HA Ball Bearings mm in. mm in. mm in. mm in. mm in.
1) Adapter numbers apply to adapter sleeve, lock-nut, and lock-washer assemblies.2) The thread size of HE211 X is M55x1.5 and differs from the standard (M55x2.0).3) The thread size of HE311 X is M55x1.5 and differs from the standard (M55x2.0).
H HE,HS,HA H H HE,HS HE,HS L L D1 D1 S S S1 S1 Self-Align Spherical Roller HA HA Ball Brg Bearings
mm in. mm in. mm in. mm in. mm in. mm in.H2304 17 0.669 31 1.220 32 1.260 7 0.276 2304KH2305 HE2305 20 0.787 19.050 3/4 35 1.378 38 1.496 8 0.315 2305KH2306 HS2306 22.225 7/8
1) Adapter numbers apply to adapter sleeve, lock-nut, and lock-washer (or locking clamp) assemblies. 2) The thread size of HE2311 X is M55x1.5 and differs from the standard (M55x2.0).
1) Withdrawal sleeves listedhere do not include extracting nuts. Please order extracting nuts separately.2) The dimension L1 is the overall width of the withdrawal sleeve and bearing before mounting.3) TM indicates Metric Series 30deg Trapezoidal Screw.
ACCESSORIES Withdrawal SleevesSeries AH3, AH22
Withdraw. Bore Shaft Dimensions Corresponding4)
Sleeve1) Dia. d1 L L F F L1 L12) Thd3) Extract Bearing Numbers
No. mm in. mm in. mm in. mm in. Size D2 Nut No. Spherical Roller B.dia x pitch mm
Withdraw. Bore Shaft Dimensions Corresponding4)
Sleeve1) Dia. d1 L L F F L1 L12) Thd3) Extract Bearing Numbers
No. mm in. mm in. mm in. mm in. Size D2 Nut No. Spherical Roller B.dia x pitch mm
1) Withdrawal sleeves listed here do not include extracting nuts. Please order extracting nuts separately.2) The dimension L1 is the overall width of the withdrawal sleeve and bearing before mounting.3) TM indicates Metric Series 30deg Trapezoidal Screw Thread.
1) Withdrawal sleeves listed here do not include extracting nuts. Please order extracting nuts separately.2) The dimension L1 is the overall width of the withdrawal sleeve and bearing before mounting.3) TM indicates Metric Series 30deg Trapezoidal Screw Threads.
Lock Washer Nos. Dimensions Related Nos.W/ Bent W/ Straight D1 D1 E E t t Ds Ds Bore Dia. LockInner Tab Inner Tab mm in. mm in. mm in. mm in. Code No. Nut
for Adap. No. Sleeve
With Bent Inner Tab With Straight Inner Tab
Page 1.337Motion Technology
LINEAR MOTION BEARINGS
Ball Bushings: Drawn Cup (Metric) ........................................................... 1.338 Rigid (Metric & Inch........................................................... 1.339 Self-Aligning (Metric & Inch) ............................................. 1.340Housed Bearings: Rigid (Metric) ..................................................................... 1.341 Self-Aligning (Metric) ....................................................... 1.342 Self-Aligning (Inch)........................................................... 1.343Accessories Shaft Support ................................................... 1.344Shaft Support Blocks: Series GWH, GWN............................ 1.345Shaft Support Rails Series TSWZ, TSWZ..PD.................................................... 1.346 Series TSUZ, TSUZ..PD ..................................................... 1.347Shafts: Series W, WZ ............................................................ 1.348Recirculating Ball Assemblies .............................................. 1.349Track Roller System: Series LF, LFCL ................................. 1.350Ball Screws ............................................................................ 1.351
BSC State Office NSW (02) 9824 2100 VIC (03) 9560 3222 QLD (07) 3260 6888Phone Numbers: SA (08) 8349 8388 TAS (03) 6272 4344 WA (08) 9337 3000
Page 1.338 Motion Technology
LINEAR MOTION BEARINGS Ball Bushings:Drawn Cup (Metric)
6 12 22 KH0622 p p 8 15 24 KH0824 p p10 17 26 KH1026 p p12 19 28 KH1228 p p14 21 28 KH1428 p p16 24 30 KH1630 p p20 28 30 KH2030 p p25 35 40 KH2540 p p30 40 50 KH3050 p p40 52 60 KH4060 p p50 62 70 KH5070 p pVariance P = 1 sealPP = 2 seals
Dimensions Reference VarianceShaft OD Length P PPDia
Bearing
Bearing With Housing
Shaft Dimensions Reference Dia. H H1 A C1 G A2 K
Page 1.339Motion Technology
LINEAR MOTION BEARINGS Ball Bushings: Rigid
12 22 32 KB1232 p p p Closed16 26 36 KB1636 p p p20 32 45 KB2045 p p p25 40 58 KB2558 p p p30 47 68 KB3068 p p p40 62 80 KB4080 p p p50 75 100 KB50100 p p p12 22 32 KBS1232 p p p Split16 26 36 KBS1636 p p p20 32 45 KBS2045 p p p25 40 58 KBS2558 p p p30 47 68 KBS3068 p p p40 62 80 KBS4080 p p p50 75 100 KBS50100 p p p12 22 32 KBO1232 p p p Open16 26 36 KBO1636 p p p20 32 45 KBO2045 p p p25 40 58 KBO2558 p p p30 47 68 KBO3068 p p p40 62 80 KBO4080 p p p50 75 100 KBO50100 p p p
1) Maximum length L = 48 inches.2) The dimension C is dependent on the length of the support rail. It should always be equal at both ends.3) With reference to the nominal shaft diameter, measured while clamped.4) Available upon request with A4±0.002.
Shaft Designation Mass Dimensions in Inches Mounting DimensionsDia. lbs/ft A H
33) H
1 A
2 A
3 A
4 d
3 t d
1 d
2 A
1G
±.002
Shaft Designation Mass Dimensions in InchesDia. lbs/ft A H2) H
1 A
13)
±.002
TSWZ
TSWZ..PP
H1
A1
A
H
d
L1)
H1t
A
Hd2
A1
d3
A4
d1
dA3
A2
C2) GL1)
G
Page 1.347Motion Technology
LINEAR MOTION BEARINGS Shaft Support RailsSeries TSUZ, TSUZ..PD
1) Maximum length L = 48 inches.2) The dimension C is dependent on the length of the support rail. It should always be equal at both ends.3) With reference to the nominal shaft diameter, measured while clamped.4) Available on request with A1±0.002.
Shaft Designation Mass Dimensions in InchesDia. lbs/ft d A H2) H1 A1
3) A2±.002
Shaft Designation Mass Dimensions in Inches Mounting DimensionsDia. lbs/ft d A H3) H1 A14) A2 d2 G
1) Only for shafts made from quenched and tempered steel2) Measured diameter variation.3) According to DIN 6773 part 3.Ordering examples:Shaft with standard tolerances 25mm dia and 2000mm length:W25h6x2000.Shaft with special tolerances 25mm dia and 2600mm length:W25j5x2600Shaft made from corrosion resistant steel 25mm dia and 2600mm length:W25h6x2600-X46Cr13.
1) Other dimensions available on request 2) Modified designation3) Measured diameter variation 4) According to DIN 6773 part 3.Material: Quenched and tempered steel. Other materials available on request.Ordering example:Shaft with 1 inch outside diameter and 2000mm length: WZ16Lx2000.
W
AShaft Des. Mass Tolerances in Fm Round Parallel SurfaceDia. d kg/m Stand. Special Tolerances t1 t2
1) Rht2)
Tol. h6 j5 f7 Fm Fm min.
Shaft Dia. d Des. Mass Tol. in Fm Round Parallel Surfaceinch mm kg/m Class �L� t1 t2
1) Rht2)
Fm Fm min.
WZ
Page 1.349Motion Technology
LINEAR MOTION BEARINGS Recirculating BallAssemblies
K U E
SeriesLinear recirculating ball bearing and guideway assembly KUE - - - - - -Size25 - 25 - - - - -ExecutionReduced section height with extended carriage - - NL - - - -Number of carraiges on a guideway2 carriages per guideway - - - W2 - - -AccuracyAccuracy class 2 - - - - G2 - -PreloadPreload class 2 - - - - - V2 -Length of guideway1500mm - - - - - - 1500
Assembly Carriage Guideway MountingDimensions in mm Ref. Ref Mass Ref Mass L H A C A1 A2 A3 a a3 C1 C2 C3 C4 C7
-0.005-0.03
Assembly Carriage Guideway Dimensions in mmReference Ref Mass Ref Mass L2) H A C1 A1 C4 h H4 C2
kg kg
The linear ball bearing and guidewayassembly KUE, has a recirculating four pointcontact ball system. The assembly KUEconsists of at least one carriage and aguideway. There are three types of guidewayassemblies available: KUE, KUEH, KUE..N.
K U S E
The new six row linear ball bearing andguideway assembly from INA provides asuperior alternative for many systems.There are two types of guideways available:KUSE and KUSE..U:n increased load carrying capacityn increased rigidityn considerable size advantagen complete interchangeability with INA
KUE series.
Page 1.350 Motion Technology
LINEAR MOTION BEARINGS Track Roller SystemSeries LF, LFCL
All dimensions in mm. An enclosed carriage type with all the above dimensions is available.
The track roller linear guidance system is a proven machine element in a wide range of applications. Themodular structure of the INA Track Roller System allows individual elements to be combined as required.
Ballscrews convert rotary motion into linear motion. theyare similar to Acme screws, but are three times moreefficient. Ballscrews range from standard off-the-shelfrolled ballscrews, to ultra-accurate ground screws.
Accuracy Class ISO Load AccuracyClass 300mm
Model Screw Shaft mm Single Nut mmMax d
1d
4D
1D
3D
4 D
5D
6L L
1L
3L
7Lth
Nuts
Ballscrews
Single NutRight hand thread
Single Start with BacklashAccuracy classes 9 and 10
Model Nom Load No. Max. Axial Load Capacity No. Mass Massi R.H cir- Spd Play (N) Balls Screw Nut
mm mm cuit RPM mm Dyn. Status kg/m kgd0 Ph0 l C0 C0a
VIBROTIP is also available in an intrin-sically safe version certified for use inexplosive environments such as thoseencountered in chemical plants andpetroleum refineries.
Vibrotip
Built-in Sensors
All measurement sensors arealready built into the instru-ment, ready for use at the pressof a key - with no loose parts toforget or misplace and no ca-bles, plugs or connections tobreak!
Use straightforwarddisplay graphics tos p e c i f ym e a s u r e m e n tlocations and types .T I P T R E N Dautomatically plotsreadings over timeand alerts you whenwarning or alarmlimits are reached.
MONITORS &MAINTENANCE TOOLS
PC Support Functions
Formulate your measurement routes with a convenient PC pro-gram, then transfer them toyour VIBROTIP. Oncemeasurements are com-plete, upload them to a PCfor archiving, analysis,trending and automaticperiodic reporting of ma-chine status.
Watertight, shockproof
Page 1.355Motion Technology
TIPTREND
The PC analysis partner for VIBROTIPAutomatically interprets data and issues alarms
TIPTREND handles evaluation of VIBROTIP readings on your PC,freeing you from hours of tedious bookkeeping. The programgraphs and projects measurement trends and automatically is-sues warnings - even in advance - when readings exceed criticallimits. It also produces downtime reports and work orders at thepress of a key.
OPTALIGN
The world�s favourite laser-optical shaft align-ment system
For over a decade, the world�s first laser-optical shaft alignmentsystem is also the favourite of thousands: from pumps to gear-boxes to motors and in between, the OPTALIGN system mountsin seconds on machine shafts or couplings of any size. At thetouch of a key, it shows you the exact amount of misalignment atthe coupling or the necessary corrections at the machine feet -in a fraction of the usual time. The system is easy to learn andsimplifies even complex alignment situations.
VibrotipMONITORS &MAINTENANCE TOOLS
Page 1.356 Motion Technology
NB-4 Bearing Monitor
Features:
A. Extra-Small Size
No bigger than your hand, the NB-4 Bearing Monitor can be eas-ily carried around shops to check the condition of bearings - withor without a connecting cable for the pickup.
B. Easy Detection of Trouble
An LED warning light immediately indicates the presence of sig-nificant localized flaws such as flaking. A simple criteria for evalu-ating vibration, which was devised by NSK, allows easy evalua-tion of operating without reference to past data.
C. Usable as a General-Purpose Vibration In-strument
Vibrational displacement, velocity, and acceleration can all bemeasured allowing the NB-4 to be used for a variety of purposes.Velocity measurements are recommended for checking variousmachines, while acceleration measurements are preferred forrolling bearings.
Extra-CompactBearingMonitor
D. Versatility
Selection of either a high or low sensitivity range is possible. Also,either effective (rms) or peak vibration can be measured; there-fore, the NB-4 can be used for a wide range of bearing applica-tions irrespective of their size or speed.
E. Easy-to-Read Digital Display
Data appear as large figures on a liquid-crystal display which maybe �frozen� at any time to simplify reading. Also, the decimalpoint shifts automatically when the sensitivity range is switchedeliminating the possibility of error.
F. Greatly Improved Vibration Pickup
The newly-developed piezoelectric pickup has greatly improvedhigh-frequency response that provides a more reliable warningof possible bearing trouble.
G. Signal Output Terminals
Output terminals are provided for the recording and more pre-cise evaluation of vibration. Either the actual vibration signal orits wave-form envelope is available as well as an audio output forearphones.
MONITORS &MAINTENANCE TOOLS
Page 1.357Motion Technology
n Eight (8) hours continuous uses (Ten (10) hours typical)for extended data collection.
n Compact and lightweight (only 1.4 kg).n Can monitor spectral data and waveform either independ-
ently or on the same screen.
CSI StarterTrend Software
n Compatible with Microsoft Windows.n Easy to use Software with diagnostic power.n Software Modules include:-
DBASE for easy database creation and modification.ROUTE for Route creation and modification.CSICOM for 1010 Data collector / PC communication.EXPORT for creating fast exception reports.PLOT DATA for displaying and analysing spectral, trendand waveform data.DATMGR provides utility functions for the data manage-ment of StarterTrend Databases.
n Data base upgradeable to more sophisticated VibrationSystems.
StarterTrend is a powerful tool to not only detect a machineproblem, but also to specifically locate the particular faultand determine its severity.
HARDWARE AND SOFTWARE FEATURES
CSI 1010 Data Collector
Starter Trend
APPLICATIONS
The StarterTrend Vibration Monitoring System consists of alightweight data collector and Starter Trend Software enablingthe creation of databases and routes, data collector to PCcommunication and FULL FREQUENCY SPECTRUM to detect,analyse, trend and report specific machinery faults such as:
n Misalignment n Loosenessn Imbalance n Bearing Defectsn Gear Defects n Belt Defectsn Electrical Problems
BENEFITS
Overall Vibration Monitoring Systems only measure the OVER-ALL VIBRATION in the Time Domain - they may detect that amachine has a problem but they can�t pinpoint or tell youwhat that problem is.... and if you don�t know what the prob-lem is YOU CAN�T FIX IT!!
StarterTrend uses an FFT (Fast Fourier Transform) Analysisto produce each of the separate waveforms from the TimeDomain onto a Frequency Spectrum.
Each machine fault will occur at a unique frequency (RPM orHz).
MONITORS &MAINTENANCE TOOLS
n Real Time Rate of800 Hz.
n 800 line resolution.n Collects one aver-
age per second fora 2000 Hz, 800 linespectrum.
n In field capability al-lows Alarm limits tobe set in 6 fre-quency ranges( i e . � N A R R O WBANDS�).
Page 1.358 Motion Technology
Starter Trend
Lets consider an example of a Fan Bearing to compare thereal advantages of Full Spectrum Vibration Analysis relativeto Overall Vibration
A fan bearing was being monitored over 4months to determine its condition.
The full spectrum plot for each month shows thatin July, August and September only amisalignment was detected. However, inOctober the misalignment problem minimisedand a serious bearing fault (inner race) becameevident.
MONITORS &MAINTENANCE TOOLS
Overall Vibration would not have detected thisfault as the overall vibration levels were still wellbelow the fault levels as specified by AS 2625.
CONCLUSION - This machine would haveran to failure because Overall Vibration gave noindication of an impending bearing failure.
Full Spectrum Vibration Analysis usingStarterTrend�s �NARROW BAND Analysis�quickly identified a developing bearing fault(9.35 Turning Speed of Shaft) well in excess ofthe fault (alarm) level.
CONCLUSION - This machine would have hadthe bearing replaced at a convenient time withno impact on production capacity, because oftimely detection using the Full Spectrum Analy-sis capability of StarterTrend.
Page 1.359Motion Technology
NSK Bearing Heaters
Safe and Efficient Shrink Fitting of BearingsFast, Safe Heating without Flames
Controlled, Uniform Heating Prevents Bearing DamageClean Heating Without Oil
Features of NSK Bearing Heaters:
MONITORS &MAINTENANCE TOOLS
A. Fast, Uniform Heating
Induction heating reduces bearingmounting time and cost.
B. No Oil Tanks Required
Since there are no flames, there is no firehazard, and an internal circuit breakerguards against an electrical short.
C. Compact and Light
Most NSK Bearing Heaters are light enoughto be carried easily and used anyplace.
D. Automatic Temperature Control
A thermostatic control can be set at anytemperature up to 200/C. When the desired
level is reached, a buzzer sounds andconstant temperature is maintained.
E. Automatic Demagnetizing
When the heating is finished, the bearing isquickly and automatically demagnetized.
F. Bearing Rest
A convenient rest supports the bearing andallows it to be easily positioned.
G. Versatility
Besides bearings, other metallic rings suchas inner ring spacers can also be heatedfor shrink fitting or for other purposes.
Hydraulic Angle Open End & Service Pump Black Wrenches
BLK3710A 11/32 x 11/32 Hydraulic Wrench 1BLK3710 3/8 X 3/8 Hydraulic Wrench 1BLK3711 7/16 X 7/16 Hydraulic Wrench 1BLK3712 1/2 X 1/2 Hydraulic Wrench 1BLK3713 9/16 X 9/16 Hydraulic Wrench 1BLK3714 5/8 X 5/8 Hydraulic Wrench 1BLK3715 11/16 X 11/6 Hydraulic Wrench 1BLK3716 3/4 X 3/4 Hydraulic Wrench 1BLK3717 13/16 X 13/16 Hydraulic Wrench 1BLK3718 7/8 X 7/8 Hydraulic Wrench 1BLK3719 15/16 X 15/16 Hydraulic Wrench 1BLK3720 1 X 1 Hydraulic Wrench 1BLK3721 1-1/16 X 1-1/16 Hydraulic Wrench 1BLK3722 1-1/8 X 1-1/8 Hydraulic Wrench 1BLK3722A 1-3/16 X 1-3/16 Hydraulic Wrench 1BLK3723 1-1/4 X 1-1/4 Hydraulic Wrench 1BLK3724 1-3/8 X 1-3/8 Hydraulic Wrench 1BLK3725 1-7/16 X 1-7/16 Hydraulic Wrench 1BLK3726 1-1/2 X 1-1/2 Hydraulic Wrench 1BLK1224 3/4 Service Wrench 1BLK1226 13/16 Service Wrench 1BLK1228 7/8 Service Wrench 1BLK1230 15/16 Service Wrench 1BLK1232 1 Service Wrench 1BLK1234 1-1/16 Service Wrench 1BLK1236 1-1/8 Service Wrench 1BLK1238 1-3/16 Service Wrench 1BLK1240 1-1/4 Service Wrench 1BLK1242 1-5/16 Service Wrench 1BLK1244 1-3/8 Service Wrench 1BLK1246 1-7/16 Service Wrench
Check your nearest BSC branch for availability
USA3BLK QTY
MONITORS &MAINTENANCE TOOLS
Page 1.364 Motion Technology
SF51 10-1/4" Ratchet SD1230 15/16 12 Pt. Deep 14616 1/2 6 Pt. Deep/PowerS110P 5" Extension SD1232 1 12 Pt. Deep 14618 9/16 6 Pt. Deep/PowerS115P 10" Extension SD1234 1-1/16 12 Pt. Deep 14620 5/8 6 Pt. Deep/PowerS121P 20" Extension SD1236 1-1/8 12 Pt. Deep 14622 11/16 6 Pt. Deep/PowerSF41 Flexible Handle STM1209 9mm 12 Pt. Std. 14624 3/4 6 Pt. Deep/PowerS20A Sliding T-Hdle STM1210 10mm 12 Pt. Std. 14626 13/16 6 Pt. Deep/PowerS15 Speeder STM1211 11mm 12 Pt. Std. 14628 7/8 6 Pt. Deep/PowerS140 Universal STM1212 12mm 12 Pt. Std. 14630 15/16 6 Pt. Deep/PowerSH129 1/2F x 3/8M Adpt. STM1213 13mm 12 Pt. Std. 14632 1 6 Pt. Deep/PowerSH130 1/2F x 3/4M Adpt. STM1214 14mm 12 Pt. Std. 14634 1-1/16 6 Pt. Deep/PowerST1212 3/8 12 Pt. Std. STM1215 15mm 12 Pt. Std. 14636 1-1/8 6 Pt. Deep/PowerST1214 7/16 12 Pt. Std. STM1216 16mm 12 Pt. Std. 14640 1-1/4 6 Pt. Deep/PowerST1216 1/2 12 Pt. Std. STM1217 17mm 12 Pt. Std. 4140A Impact UniversalST1218 9/16 12 Pt. Std. STM1218 18mm 12 Pt. Std. 42A 1/2F x 3/8M Adpt.ST1220 5/8 12 Pt. Std. STM1219 19mm 12 Pt. Std. 4105A 5" ExtensionST1222 11/16 12 Pt. Std. STM1220 20mm 12 Pt. Std.ST1224 3/4 12 Pt. Std. STM1221 21mm 12 Pt. Std.ST1226 13/16 12 Pt. Std. STM1222 22mm 12 Pt. Std.ST1228 7/8 12 Pt. Std. STM1224 24mm 12 Pt. Std.ST1230 15/16 12 Pt. Std. STM1227 27mm 12 Pt. Std.ST1232 1 12 Pt. Std. STM1230 30mm 12 Pt. Std.ST1234 1-1/16 12 Pt. Std. STM1232 32mm 12 Pt. Std.ST1236 1-1/8 12 Pt. Std. 4614 7/16 6 Pt. Std./PowerST1238 1-3/16 12 Pt. Std. 4616 1/2 6 Pt. Std./PowerST1240 1-1/4 12 Pt. Std. 4618 9/16 6 Pt. Std./PowerST1242 1-5/16 12 Pt. Std. 4620 5/8 6 Pt. Std./PowerST1244 1-3/8 12 Pt. Std. 4622 11/16 6 Pt. Std./PowerST1246 1-7/16 12 Pt. Std. 4624 3/4 6 Pt. Std./PowerST1248 1-1/2 12 Pt. Std. 4626 13/16 6 Pt. Std./PowerSD1216 1/2 12 Pt. Deep 4628 7/8 6 Pt. Std./PowerSD1218 9/16 12 Pt. Deep 4630 15/16 6 Pt. Std./PowerSD1220 5/8 12 Pt. Deep 4632 1 6 Pt. Std./PowerSD1222 11/16 12 Pt. Deep 4634 1-1/16 6 Pt. Std./PowerSD1224 3/4 12 Pt. Deep 4636 1-1/8 6 Pt. Std./PowerSD1226 13/16 12 Pt. Deep 14612 3/8 6 Pt. Deep/PowerSD1228 7/8 12 Pt. Deep 14614 7/16 6 Pt. Deep/Power
USA11 QTY 1 EA
USA12 QTY 1 EA.
3/8� Drive Sockets
1/2� Drive Sockets
B52 7" Ratchet B608 1/4 6 Pt. Std. BMD606 6mm 6 Pt. Deep
B103 3" Extension B610 5/16 6 Pt. Std. BMD607 7mm 6 Pt. DeepB105 5" Extension B612 3/8 6 Pt. Std. BMD608 8mm 6 Pt. DeepB112 12" Extension B614 7/16 6 Pt. Std. BMD609 9mm 6 Pt. DeepB40A Flexible Hdle. B616 1/2 6 Pt. Std. BMD610 10mm 6 Pt. DeepB20A Sliding T-Hdle. B618 9/16 6 Pt. Std. BMD611 11mm 6 Pt. DeepB15 Speeder B620 5/8 6 Pt. Std. BMD612 12mm 6 Pt. DeepB140A Universal B622 11/16 6 Pt. Std. BMD613 13mm 6 Pt. DeepBS129 3/8F x 1/4 M Adpt. B624 3/4 6 Pt. Std. BMD614 14mm 6 Pt. DeepBS130 3/8F x 1/2 M Adpt. B626 13/16 6 Pt. Std. BMD615 15mm 6 Pt. DeepB1212 3/8 12 Pt. Std. B628 7/8 6 Pt. Std. BMD616 16mm 6 Pt. DeepB1214 7/16 12 Pt. Std. BD612 3/8 6 Pt. Deep BMD617 17mm 6 Pt. DeepB1216 1/2 12 Pt. Std. BD614 7/16 6 Pt. Deep BMD618 18mm 6 Pt. DeepB1218 9/16 12 Pt. Std. BD616 1/2 6 Pt. Deep BMD619 19mm 6 Pt. DeepB1220 5/8 12 Pt. Std. BD618 9/16 6 Pt. Deep 2610 5/16 6 Pt. Std./PowerB1222 11/16 12 Pt. Std. BD620 5/8 6 Pt. Deep 2612 3/8 6 Pt. Std./PowerB1224 3/4 12 Pt. Std. BD622 11/16 6 Pt. Deep 2614 7/16 6 Pt. Std./PowerB1226 13/16 12 Pt. Std. BD624 3/4 6 Pt. Deep 2616 1/2 6 Pt. Std./PowerB1228 7/8 12 Pt. Std. BD626 13/16 6 Pt. Deep 2618 9/16 6 Pt. Std./PowerB1230 15/16 12 Pt. Std. BA4 1/8 Hex bit skt 2620 5/8 6 Pt. Std./PowerB1232 1 12 Pt. Std. BA5 5/32 Hex bit skt 2622 11/16 6 Pt. Std./PowerBD1212 3/8 12 Pt. Deep BA6 3/16 Hex bit skt 2624 3/4 6 Pt. Std./PowerBD1214 7/16 12 Pt. Deep BA7 7/32 Hex bit skt 12610 5/16 6 Pt. Deep/PowerBD1216 1/2 12 Pt. Deep BA8 1/4 Hex bit skt 12612 3/8 6 Pt. Deep/PowerBD1218 9/16 12 Pt. Deep BA10 5/16 Hex bit skt 12614 7/16 6 Pt. Deep/PowerBD1220 5/8 12 Pt. Deep BA12 3/8 Hex bit skt 12616 1/2 6 Pt. Deep/PowerBD1222 11/16 12 Pt. Deep BM606 6mm 6 Pt. Std. 12618 9/16 6 Pt. Deep/PowerBD1224 3/4 12 Pt. Deep BM607 7mm 6 Pt. Std. 12620 5/8 6 Pt. Deep/PowerBD1226 13/16 12 Pt. Deep BM608 8mm 6 Pt. Std. 12622 11/16 6 Pt. Deep/PowerBD1228 7/8 12 Pt. Deep BM609 9mm 6 Pt. Std. 12624 3/4 6 Pt. Deep/Power
BM610 10mm 6 Pt. Std. 2140A Impact UniversalBM611 11mm 6 Pt. Std. 24A 3/8F x 1/2M AdaptorBM612 12mm 6 Pt. Std.BM613 13mm 6 Pt. Std.BM614 14mm 6 Pt. Std.BM615 15mm 6 Pt. Std.BM616 16mm 6 Pt. Std.BM617 17mm 6 Pt. Std.BM618 18mm 6 Pt. Std.BM619 19mm 6 Pt. Std.
MONITORS &MAINTENANCE TOOLS
Check your nearest BSC branch for availability
Page 1.365Motion Technology
Hex Key Wrench Sets
JacKey Wrench Sets
Hex Key SetsMONITORS &MAINTENANCE TOOLS
Number Approx. Quantity Wt. Lbs.
13S .75 1Contains 13 keys, short arm series, eachin a separate size-marked pocket, inchsizes: .050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32,3/16, 7/32, 1/4, 5/16, 3/8. Kit Bag C691
Number Approx. Quantity Wt. Lbs.
9L .9 19 keys, 6� long arm series, inch sizes:5/64, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8. Kit Bag C591Number Approx. Quantity
Wt. Lbs. 9SM .58 19 metric keys, short arm series, mmsizes: 1.5, 2, 2.5, 3,4,5,6,8,10. Kit Bag C691Number Approx. Quantity
Wt. Lbs. 11S 1.6 111 keys, short arm series, inch sizes: 5/64, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8, 1/2, 9/16.
Kit Bag C591
Number Approx. Quantity Wt, Lbs.
11SA .6 111 keys, short arm series, inch sizes:.050 1/16, 5/64, 3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16,
3/8. Kit Bag C691
Number Approx. Quantity Wt. Lbs.
9S .30 19 keys, short arm series, inch sizes: 5/64,3/32, 1/8, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8. Kit BagC691Number Approx. Quantity
Wt. Lbs. 7S .25 17 keys, short arm series, inch sizes: 5/64,
3/32, 1/8, 5/32, 3/16, 7/32, 1/4. Kit Bag C791
Number Approx. Quantity Wt. Lbs.
7SM .66 17 metric keys, short arm series, mmsizes: 2, 2.5, 3, 4, 5, 6, 8. Kit Bag C691
Number Approx. Quantity Wt. Lbs.
5LK 1.62 1JacKey Set with 5 long bits in inch sizes: 3/16, 7/32, 1/4, 5/16, 3/8. Bit lengths 3-3/8�-5�.Handle length 5-1/4�.
Number Approx. Quantity Wt. Lbs.
7LKM .15 1Metric JacKey Set with 7 bits in mm sizes: 1.5,2, 2.5, 3, 4, 5, 6. Bit lengths 38-50 mm. Handlelength 100 mm.
Number Approx. Quantity Wt. Lbs.
8LK 2.02 1JacKey Set with 8 long bits in inch sizes: 3/32,7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4. Bit lengths 5�-
5-1/2�. Handle length 67�.
Number Approx. Quantity Wt. Lbs.
9LK 1.06 1JacKey Set with 9 bits in inch sizes: .050, 1/16,
5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16.
Number Approx. Quantity Wt. Lbs.
8SK .3 1JacKey Set with 8 bits in inch sizes: .050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32. Bitlengths 2�-2-1/2�. Handle length 3�.
Number Approx. Quantity Wt. Lbs.
9SK 1.06 1JacKey Set with 9 bits in inch sizes: 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4. Bitlengths 3�-3-1/2�. Handle length 4�.
1/4 I 2-1/2 - 15/16 1 .18 SA8 SA8B 55/16 I 2-1/2 - 15/16 1 .18 SA10 SA10B 53/8 I 2-1/2 - 15/16 1 .18 SA12 SA12B 57/16 I 2-1/2 - 15/16 1 .18 SA14 SA14B 51/2 II 2-1/2 - 1-1/16 1 .18 SA16 SA16B 59/16 II 2-1/2 - 1-1/16 1 .18 SA18 SA18B 55/8 II 2-1/2 - 1-1/16 1 .19 SA20 SA20B 5
Wrench Diameter Thickness Width Length Wt Chrome Industrial. StdOpening of Head of Head of Slot of Centers Ea. Black Pkg.
A B C D Lbs. Part No. Part No. Qty.
1/2� Drive Crowfoot Wrench - Flare Nut 12 Pt.
1/2� Drive Crowfoot WrenchAllen Type Sockets
Bit Size Type Length Drive End Bit size Bit Wt Chrome Replace- Std.End Length Ea. ment Pkg.
A B C D Lbs. Part No. Hex Bits Qty.
1/2� Drive Hex Type Sockets With Bits
TYPE I TYPE II
MONITORS &MAINTENANCE TOOLS
Page 1.368 Motion Technology
Page 1.369Motion Technology
INTERCHANGE DATA
General Designations .............................................................. 1.370Designations: Angular Contact - Super Precision ................. 1.372Interchange List ....................................................................... 1.374
BSC State Office NSW (02) 9824 2100 VIC (03) 9560 3222 QLD (07) 3866 8300Phone Numbers: SA (08) 8349 8388 TAS (03) 6272 4344 WA (08) 9337 3000
Page 1.370 Motion Technology
The following table explains how this works:
Digits Bore Size
00 10 mm 01 12 mm 02 15 mm 03 17 mm 04 20 mm
After this you can find the bore size by multiplyingthe last two digits by 5, thus 06 (in our example- 6 2 0 6 2RS V ) would indicate 30mm bore size.Below 10 mm, a single digit is used; thus, a 627bearing would have a 7 mm bore size.
Finally, the last three characters (2RS) indicatethat the bearing has two rubber seals - one oneach side of the bearing. Suffix numbers (like2RS) are added to the basic bearing number andmodify the bearing in some way. Some commonsuffixes are:
RS - One Rubber Seal (Contact type)2RS - Two Rubber Shields (Contact type)RU - One Rubber Shield (Non Contact type)2RU - Two rubber seals (Non Contact type)Z - One Steel ShieldZZ - Two Steel ShieldsNR - Ring Groove with RingW - Steel CageC3 - Clearance indicator
These suffixes are used by Koyo. Other manufac-turers may use different suffixes to indicate theabove features. A panel is provided on somepages to indicate the alternatives. The chart onthe next page summarizes the numbering sys-tems for Metric and Imperial bearings.
BEARING NUMBERING SYSTEMS
In almost all bearing part numbers each indi-vidual number has a meaning, the main excep-tion being in the imperial tapered roller part num-bers in which the number as a whole has signifi-cance. For the time being we will ignore thisanomaly and discuss the common numberingsystem applicable to most of the metric bearings.
Under the ISO bearing numbering system, bear-ing part numbers may have a �core� of either 3, 4,or 5 digits and possibly some letters and/ornumbers combinations at each end. The positionof numbers and letters in the part number isimportant. As an example look at the followingpart number:
6 2 0 6 2RS
This is a four digit part number - the letters at theend are a suffix to the main part of the number.The first digit (6 in this case) indicates the bear-ing type. A six means a single row ball bearingwhich has one row of balls. The bearing typechart on the next page, describes other types ofbearing and some of their characteristics. Notethat in some cases a letter or letters rather than anumber is used.
The second digit (2), describes the bearingseries, which may be one of the following.
0 - Extra Light Series 2 - Light Series 3 - Medium Series 4 - Heavy Series
The third and fourth digit (or fourth and fifth in 5digit numbers) is linked to the bore size (internaldiameter) and this is often called the key dimen-sion.
INTERCHANGE DATA General Designations
* For a more detailed explanation of Bearing types, refer to the Bearing Introduction section - pages 1.1 to 1.14
Page 1.371Motion Technology
INTERCHANGE DATABEARING NUMBERING SYSTEMS
Bore Size
IMPERIAL (INCH) BEARINGS
The imperial bearing numbering system is rather morecomplicated. Inch dimensioned bearings are found onolder equipment and also on some American manufac-tured machinery.
IMPERIAL BEARING NUMBERING SYSTEM CHART
To use this chart look for the prefix in the Bearing type list,then read the explanation of how the remainder of the partnumber relates to the bore size.
BEARING TYPE LIST
Letters Type Description Size
FT Ball Extra light thrust I(Flat raceways)
LJT Ball Light journal thrust ILLRJ Roller Light roller journal ILRJ Roller Light roller journal ILRJA Roller Light roller journal ILT Ball Light Series thrust IMJT Ball Medium journal thrust IMMRJ Roller Medium roller journal IMMRJN Roller Medium roller journal IMRJ Roller Medium roller journal IMRJA Roller Medium roller journal IMT Ball Medium series thrust INLJ Ball Self aligning light series INMJ Ball Self aligning medium series IQJM Ball Duplex type single row angular contact IEE Ball Small series (NSK use R) SRLS Ball Rigid light series ERMS Ball Rigid medium series EXLJ Ball Extra light journal IXLRJ Roller Extra light journal IXLT Ball Extra light thrust (grooved raceways) I
E - code derived from size expressed in eights of an inch I - size in inches (4 inch and larger carry the suffix �E�)
S - code derived from size expressed in sixteenths of an inch
Note:The above numbering systems are a mixture of I.S.O. andRHP numbers depending on where we usually buy thebearings. Always check the bearing type - Ball or Roller -against the above list as well as the letter prefix. An exam-ple of the danger here is the RLS series which we take tobe rigid light series ball bearing but which is a roller bearing- light series under the FAG system.
General Designations
METRIC BEARING NUMBERING SYSTEM CHART
Based on the I.S.O. numbering system ( I.S.O. stands forInternational Standards Organisation).
The main part of the numbering system may have either 3,4 or 5 digits.
Three digits Four digits Five digits
1st digit - type 1st digit - type 1st digit -type2nd digit - series 2nd digit - series 2nd & 3rd digit -
than 10mm6 - - - - Single Row Deep Grove Ball Bearing7 - - - Angular Contact Ball BearingM- - - Maximum Capacity Ball Bearing (NSK uses BL)NU- - - Cylindrical Roller Bearing (or N, NC, NF, NJ,
NUP, RNU)NU- - - - Wide Series Cylindrical Roller Bearing
(or NF, NJ, NUP)
2nd Digit 2nd Digit (in 3 & 4 digit nos) (in 5 digit nos)
Diameter Series Width Series0 - Extra light series 1 - Very narrow series2 - Light series 2 - Narrow series3 - Medium series 3 - Wide series4 - Heavy series 4 - Extra wide series
3rd Digit (in 5 digit nos)Diameter Series 00 - 10 mm0 - Extra light series 01 - 12 mm1 - Small series 02 - 15 mm2 - Light series 03 - 17 mm33 - Medium series 20 mm and over -
Bore Size x 5
Page 1.372 Motion Technology
INTERCHANGE DATA DesignationsAngular Contact - Super Precision
MM Precision Grade FAFNIR VMM RHP EP5 ISO 5 ABEC 5FAFNIR MM RHP EP7 ISO 4 ABEC 7FAFNIR MMV RHP EP7/9 ISO - ABEC -FAFNIR MMX RHP EP9 ISO 2 ABEC 9
o Special Feature FAFNIR 9 RHP S FEATURE small ball type
91 Dimension Series FAFNIR 93 RHP B79 ISO 19FAFNIR 91 RHP B70 ISO 10FAFNIR 2 RHP B72 ISO 02
10 Bore Size As RHP
WI Construction FAFNIR WI RHP C CONSTRUCTION NormalFAFNIR WO RHP R CONSTRUCTION ReverseFAFNIR WN RHP S Used in RHP small ball range only
CR Cage Material FAFNIR C RHP - Material Polyamide Location Outerand Location FAFNIR CR RHP TA Material Phenolic Location Outer
FAFNIR MAR RHP LA Material Aluminium Location Outer
DU Matching FAFNIR U RHP U FAFNIR TU RHP 3UFAFNIR DU RHP DU FAFNIR QU RHP 4U
M Preload FAFNIR C RHP F LEVEL FlushFAFNIR X RHP X LEVEL Extra lightFAFNIR L RHP L LEVEL LightFAFNIR M RHP M LEVEL MediumFAFNIR H RHP H LEVEL Heavy
o Special Feature Usually TR.. . or FS...eg .FS649=Ceramic ballC No indicator used to denote this feature.- Denotes feature not in relevant manufacturers range.o Denotes possible reference indicator may appear.
FAFNIR - Angular Contact Ball Bearing
Page 1.373Motion Technology
INTERCHANGE DATA
B Construction B Normal rangeS Small ball �Excel� rangeC BETN EP5 or old preload rangeF Flanged type range
7 Type 7 Single row angular contact ball bearing
0 Dimension Series RHP 9 ISO 19 RHP 2 ISO 02RHP 0 ISO 10 RHP 3 ISO 03
10 Bore Code 00-10mm 04 upwards, multiply by 5 to obtain bore size in mm01-12mm02-15mm03-17mm
o Construction C Normal typeR Reverse typeSN Ceramic ball type
T Cage Material T Phenolic ResinC BrassTN Polyamide (ETN-extra capacity)L Aluminium
A Location A Outer ring guidedC Inner ring guided
DU Matching U Single universalDU,DB,DF,DT Paired unit3U,3T,2TB,2TF Triple set3TB,2TB2T,2TF2T Quad set
M Preload S - Slack L - LightF - Flush M - MediumX - Extra Light H - Heavy
EP7 Precision Grade RHP EP5 ISO 5 ABEC 5RHP EP7 ISO 4 ABEC 7RHP EP7/9 ISO - ABEC -RHP EP9 ISO 2 ABEC 9
o Special Feature Usually QS+number, refer to RHP Precision for details.C No indicator used to denote this feature.- Denotes feature not in relevant manufacturers range.o Denotes possible reference indicator may appear.
RHP - Angular Contact Ball Bearing
DesignationsAngular Contact - Super Precision
Page 1.374 Motion Technology
INTERCHANGE DATA Interchange List
The list identifies the bearing series only. The user should then check the relevant table toverify the dimensions and select the precise designation.
Most bearings in use today are manufactured to International Standards and where this isso, then BSC offers a direct interchangeable equivalent. In other cases the BSC product is afunctional equivalent in respect of the key features although secondary dimensions maydiffer. These products are identified by an asterisk.
There is an enormous range of special bearings made and not listed here; therefore it isimportant to contact BSC if in doubt - there is every chance that they are still being made.
This list is in good faith but no responsibility can be accepted for errors concering manufac-turers products.
The manufacturers included are:
Asahi GPZ NTNBCA INA R & MBower Koyo RIVFafnir Link Belt RollwayFAG McGill SealmasterFBC MRC SKFFederal Nachi SNRFYH NSK SROGMN NBR Steyr
1200 Federal 62001200CG Federal 6200NR1200F Federal 6200Z1200FF Federal 6200-2Z1200L Federal 6200RS1200LL Federal 62002RS1200M Federal BL2001200MF Federal BL200Z1200MFF Federal BL200ZZ1200-S BCA BL200Z1200SA Federal 12001200-SS BCA BL200-2Z1300 BCA,NDH BL3001300 FAG,GPZ,Koyo,
INTERCHANGE DATA
Nachi,NSK,NTNSKF,SNR,SRO,Steyr 1300
1300 Federal 63001300 Federal 6300NR1300CG Federal 6300Z1300F Federal 6300-2Z1300FF Federal 6300RS1300L Federal 6300-2RS1300LL Federal 6300-2RS1300FM Federal BL3001300MF Federal BL300Z1300MFF Federal BL300ZZ1300R Federal 6300RS1300RR Federal 6300-2RS1300-S BCA BL300Z1300SA Federal 13001300-SS BCA BL300ZZ1400 Federal 64002200 FAG,Koyo,Nachi,
NSK,NTN,Rollway,SKR,SNR,SRO,Steyr 2200
2200 GPZ N2002200SA Federal 22002300 FAG,Koyo,Nachi,
NSK,NTN,RollwaySKF,SNR,SRO,Steyr 2300
2300 GPZ N3002300SA Federal 23003200 FAG,Koyo,Nachi,
Need help with bearing part number identification?We, at BSC, can provide you with extensive interchange information available at our branches.
Page 1.381Motion Technology
ENGINEERING DATA
Fitting Tolerances ................................................................ 1.382Fitting Guidelines for Metric Bearings ............................... 1.391Fitting Guidelines for Inch Bearings................................... 1.393Mounting Tolerances: Combined Radial - Thrust Bearings...... 1.396Mounting Tolerances: Needle Roller, Drawn Cup .............. 1.399Tolerances & Surface Structure .......................................... 1.400Plummer Block Housings: Strength of SN & SD................ 1.401Care and Fitting Practice..................................................... 1.402Examples of Bearing Failures ............................................. 1.409
BSC State Office NSW (02) 9824 2100 VIC (03) 9560 3222 QLD (07) 3260 6888Phone Numbers: SA (08) 8349 8388 TAS (03) 6272 4344 WA (08) 9337 3000
Page 1.382 Motion Technology
ENGINEERING DATA
Purpose of Fit
The purpose of fit is to securely fix the inner or outer ring to theshaft or housing, to preclude detrimental circumferential slidingon the fitting surface.
Such detrimental sliding (referred to as �creep�) will cause ab-normal heat generation, wear of the fitting surface, infiltration ofabrasion metal particles into the bearing, vibration, and manyother harmful effects, which cause a deterioration of bearing func-tions.
Therefore, it is necessary to fix the bearing ring which is rotatingunder load to the shaft or housing with interference.
Fitting TolerancesBall and Roller Bearings
BALL AND ROLLER BEARINGS
Tolerance and fit for shaft & housing
For metric series bearings, tolerances for the shaft diameter andhousing bore diameter are standardized in JIS B 0401 �limits andfits for engineering�.
Bearing fits on the shaft and housing are determined based onthe tolerances specified in the above standard.
Fig. 1-1 shows the relationship between tolerances for shaft andhousing bore diameters and fits for bearings of class 0 tolerance.
For WIR Fits - see page 1.390.
Fig. 1-1: Relationship Between Tolerances for Shaft/Housing Bore Diameters and Fits(Bearings of Class 0 Tolerance)
Single planemean outsidediameterdeviation
Single planemean beforediameterdeviation
SHAFT
HOUSING
Page 1.383Motion Technology
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
Table 2-1 Load Characteristics and FitsTable 2-1 Load Characteristics and Fits
Rotation PatternRotation Pattern Direction of LoadDirection of LoadLoadingLoading
Indeterminate Rotating or stationaryIndeterminatdirection
load
Interferencefit
Interferencefit
Cranks
ENGINEERING DATA
Fit Selection
In selecting the proper fit, careful consideration should be givento bearing operating conditions.
Major specific considerations are:
n Load characteristics and magnituden Temperature distribution in operatingn Bearing internal clearancen Surface finish, material and thickness of shaft and hous-
ingn Mounting and dismounting methodsn Necessity to compensate for shaft thermal expansion at
the fitting surfacen Bearing type and size
In view of these considerations, the following paragraphs explainsan important factor in fit selection.
Load characteristics
Load characteristics are classified into three types: rotating innerring load; rotating outer ring load and indeterminate directionload.
Table 2-1 tabulates the relationship between these characteris-tics and fit.
Fitting TolerancesBall and Roller Bearings
Page 1.384 Motion Technology
ENGINEERING DATA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
Table 2-2 Fits of Radial Bearings with ShaftsTable 2-2 Fits of Radial Bearings with Shafts
Load Conditions Examples
Shaft Diameter (mm)
Toleranceof Shaft Remarks
Ball Brgs
CylindricalRoller Brgs,
TaperedRoller Brgs
SphericalRollerBrgs
Radial Bearings with Cylindrical BoresRadial Bearings with Cylindrical Bores
Rotating
Outer Ring
Load
Easy axial
displacement of
inner ring on shaft
desirable
Wheels on
Stationary Axles
All Shaft Diameters
g6Use g5 and h5 where accuracy is
required. in case of large
bearings, f6 can be used to allow
easy axial movement.Easy axial
displacement of
inner ring on shaft
unnecessary
Tension Pulley Rope
Sheavesh6
Rotating
Inner Ring
Load or
Direction
of Load
Indetermin
Light Load (<0.06
Cr (1)) Variable
Load
Electrical
Appliances, Pumps,
Blowers, Transport
Vehicles, Precision
Machinery, Machine
Tools
< 18
18~100
100~200
--
--
< 40
40~140
140~200
--
--
--
--
js5
js6 (j6)
k6
m6
Use fitting tolerance grade 5
where high accuracy is required
and high precision brgs, are
used. h5 is used for high
accuracy ball brgs with bores
amaller than 18mm.
Normal Loads
(0.06 Cr(1))
General Bearing
Applications,
Medium and Large
Motors, Turbines,
Pumps, Engine
Main Bearings,
Gears,
Woodworking
Machines
< 18
18~100
100~140
140~200
200~280
--
--
--
--
< 40
40~100
100~140
140~200
200~400
--
--
--
< 40
40~65
65~100
100~140
140~280
280~500
Over 500
js5~6(j5~6)
k5~6
m5~6
m6
n6
p6
r6
r7
K6 and m6 can be used for
single-row tapered roller
bearings and single-row angular
contact ball bearings instead of
k5 and m5.
Heavy Loads
(>0.13 Cr (1))
Shock Loads
Railway Axleboxes,
Industrial Vehicles,
Traction Motors,
Construction
Equipment,
Crushers
--
--
--
--
50~140
140~200
Over 200
--
50~100
100~140
140~200
200~500
n6
p6
r6
r7
More than normal bearing
internal clearance is necessary.
Axial Loads Only All Shaft Diameters js6 (j6) --
Radial Bearings with Tapered Bores and SleevesRadial Bearings with Tapered Bores and Sleeves
All Types of Loading
General Bearing
Applications,
Railway Axleboxes
All Shaft Diameters
h9/IT5 IT5 and IT7 mean that the
deviation of the shaft from its true
geometric form, e.g., roundness
and taper should be within the
tolerances of IT5 and IT7,
respectively.
Transmission
Shafts,
Woodworking
Spindles
h10/IT7
Note (1) : Cr represents the basic load rating of the bearing. Remarks: This table is applicable only to solid steel shafts.
Table 2-3 Fitting of Thrust Bearings with ShaftsTable 2-3 Fitting of Thrust Bearings with Shafts
Ring LoadCone Crushers All Shaft Diameters js6 (j6)
Rotating Inner Ring
Load or Direction of
Load Indeterminate
Paper Pulp
Refiners, Plastic
Extruders
< 200 k6
200 ~ 400 m6
Over 400 n6
Fitting TolerancesBall and Roller Bearings
Page 1.385Motion Technology
ENGINEERING DATA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAA
Table 2-4 Fits of Radial Bearings with HousingsTable 2-4 Fits of Radial Bearings with Housings
Load ConditionsLoad Conditions ExamplesExamples
TolerancesTolerances
for Housingfor Housing
BoresBores
AxialAxial
Displacement ofDisplacement of
Outer RingOuter Ring
RemarksRemarks
Solid
Housings
Rotating Outer
Ring Load
Heavy Loads on
Bearing in Thin-Walled
Housing Heavy Shock
Loads
Automotive Wheel Hubs
(Roller Bearings) Craine
Travelling WheelsP7
Impossible --Normal and Heavy
Loads
Automotive Wheel Hubs (Ball
Bearings)N7
Light and Variable
Loads
Conveyor Rollers
Rope Sheaves
Tension Pulleys M7
Direction of
Load
Indeterminate
Heavy Shock Loads Traction Motors
Normal and Heavy
LoadsPumps
Crankshaft Main
Bearings
Medium and Large Motors
K7Generally
Impossible
If axial displacement of the
outer ring is not required.
Solid or
Split
Housings
Normal and Light Loads JS7 (J7) PossibleAxial displacement of
outer ring is necessary.
Rotating Inner
Ring Load
Loads of all kinds
General Bearing
Applications, Railway
AxleboxesH7
Easy
displacement--Normal and Light Loads Plummer Blocks H8
High Temperature Rise
of Inner Ring Through
Shaft
Paper Dryers G7
Solid
Housing
Accurate Running
Desirable under Normal
and Light Loads
Grinding Spindle Rear Ball
Bearings
High Speed Centrifugal
Compressor Fixed Bearings
JS6 (J6) Possible --
Direction of
Load
Indeterminate
Grinding Spindle Front Ball
Bearings
High Speed Centrifugal
Compressor Fixed Bearings
K6Generally
Impossible
For heavy loads,
interference fit tighter than
K is used. When high
accuracy is required, very
strict tolerances should be
used for fitting.Rotating Inner
Ring Load
Accurate Running and
High Rigidity Desirable
under Variable Loads
Cylindrical Roller Bearings for
Machine Tool Main SpindleM6 or N6 Impossible
Minimum noise is
requiredElectrical Home Appliances H6 Easily Possible --
Remarks: This table is applicable to cast iron and steel housings. For housings made of light alloy, the interference should be tighter thanthose in this table.
Table 2-5 Fits of Thrust Bearings with HousingsTable 2-5 Fits of Thrust Bearings with Housings
Non-adjustable raceNon-adjustable raceor in carrier or sheaveor in carrier or sheave
- clamped race- clamped race
Sheave-unclampedSheave-unclamped
race*race*
overover incl.incl.HsngHsng
Bore DevBore Dev
Resul-Resul-
tant f ittant f it
HsngHsng
Bore DevBore Dev
Resul-Resul-
tant f ittant f it
HsngHsng
Bore DevBore Dev
Resul-Resul-
tant f ittant f it
HsngHsng
Bore DevBore Dev
Resul-Resul-
tant f ittant f it
0.00 3.00+10
0+20+30
10L30
0+10
10T10L
-15-5
25T5T
-30-20
40T20T
3.00 5.00+10
0+20+30
10L30L
0+10
10T10L
-20-10
30T10T
-30-20
40T20T
5.00 12.00+10
0+20+30
10L30L
0+20
10T20L
-20-10
30T10T
-30-20
40T20T
12.00 24.00+20
0
+40
+60
20L
60L
+10
+30
10T
30L
-30
-10
50T
10T
-40
-20
60T
20T
24.00 36.00+30
0
+60
+90
30L
90L
+20
+50
10T
50L
-40
-10
70T
10T
-50
-20
80T
20T
36.00 48.00+40
0
+80
+120
40L
120L
+30
+70
10T
70L
-50
-10
90T
10T
-60
-20
100T
20T
48.00 -+50
0+100+150
50L150L
+40+90
10T90L
-60-10
110T10T
-70-20
120T20T
* Unclamped race design is applicable only to sheaves with negligible fleet angle.
ENGINEERING DATA Fitting Guidelines for InchTapered Roller Bearings
Page 1.396 Motion Technology
ENGINEERING DATA Mounting Tolerances:Combined Radial - Thrust Bearings
Good radial location and uniform support of the bearingrings over their periphery and width are of great importancefor proper operation and long service life of rolling bearings.Therefore, special care is required in the selection of themounting tolerances and the following points should betaken into consideration:
a) Rotational Conditions
The term rotational condition refers to the motion of therespective bearing ring in relation to the load direction.
Circumferential load is present if either the bearing ringrotates and the load is stationary, or the bearing ring isstationary and the load rotates.
Point load is present if either the bearing ring and load arestationary, or the bearing ring and load rotate at the samespeed.
Indeterminate load direction is present if the load directionvaries in an irregular or oscillating manner, or if shock loadsand vibration are present.
With circumferential load the bearing ring may creep if itsfit on the shaft or in the housing is too loose. This mustdefinitely be prevented by a sufficiently tight fit. The higherthe load and the larger the ring diameter, the tighter the fitwhich has to be selected.
With point load a looser fit can be selected, as there is norisk of the bearing ring creeping.
With indeterminate load direction or oscillating loadrelatively tight fits must be selected for both rings. In suchcases, the operating clearance must be checked, ifnecessary, and a bearing with larger radial internalclearance selected.
b) Type and magnitude of Loading
With high loadings, the fit of an inner ring may be looseneddue to elastic expansion. Therefore, the higher and themore shock-like the circumferential load on a ring, thetighter the fit which has to be selected.
c) Size and Type of the Rolling Bearing
d) Temperature Conditions
e) Material and Design of the Surrounding Parts
f) Fitting and Dismantling of the Bearing Rings
The variety of the above-mentioned influences shows thatnot all embracing rules can be laid down for the correctfitting tolerance limits. Therefore, the data given in thefollowing tables should be regarded as guidelines only.
The housing bore and shaft tolerances specified in Table2-17 and Table 2-18 apply only to steel or cast iron housingsand solid shafts. When using light metal housings or hollowshafts tighter fits should be selected.
Needle Roller Bearing Mounting Tolerances - General Tolerances
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAA
Table 2-16 Mounting Tolerances for Combined Radial-Thrust Bearings
1) A recess in the housing for thethrust bearing part must be => 0.5 mm larger than the nominal diameter D1 or D2 inorder to avoid double fitting.2) For functional reasons, no fits tighter than obtained with a k5 shaft and a M6 bore must be placed.
Page 1.397Motion Technology
ENGINEERING DATA Mounting Tolerances:Combined Radial - Thrust Bearings
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
Table 2-17 Guidelines for the Selection of Housing Tolerance LimitsTable 2-17 Guidelines for the Selection of Housing Tolerance Limits
1) After selecting the shaft and housing tolerance limits the operating clearance must be checked
by calculation.2) The tolerance zones in n6 and p6 require a larger radial internal clearance.3) For needle roller - angular contact ball bearings the fit must not be tighter than obtained with k5.
4) h9 / IT5 means that the cylindricity tolerance must not exceed grade 5.
ENGINEERING DATA Mounting Tolerances:Combined Radial - Thrust Bearings
Influence of the Raceway HardnessIf one of the raceways has a hardness below 670 HV, the basic dynamic load rating will be decreased to the lower value C
H. This
is taken into consideration by the following corrective equation:
ENGINEERING DATA Mounting Tolerances: NeedleRoller & Cage Assy, Drawn Cup
Needle Roller andCage Assembly K,single row
Drawn CupNeedle RollerBearing withopen ends HK
The operating clearance of the bearing is determined by thetolerances selected for the inner and outer raceways, the needleroller type and the operating temperature. The tolerance zones areselected for the respective operating conditions according to thetable below.To provide the necessary axial clearance, the actual cage width issmaller than the nominal width �Bc� of the needle roller and cageassembly given in the following tables. Cages normally run betweentwo locating side faces, the distance between which shouldcorrespond to �Bc� H11. However, in practice, the limits �Bc� 0/+0.2mm have also proved successful.
It is only when they are pressed into a housing bore that the thin-walled drawn cups of these bearings attain their final dimensionaland geometrical accuracy. The dimensional and geometricalaccuracy of the housing bore determines the enveloping circlediameter and the quality of the bearing arrangement in the mountedcondition. If the housing tolerance zones listed in Table 2-15 aremaintained, the needle roller enveloping circle, for rigid housings,will be approximately in the tolerance zone F8 and together withthe indicated shaft tolerances results in a normal operatingclearance. The width deviation of Drawn Cup Needle Roller Bearingsis 0/ -0.2mm.
Table 2-14 Mounting Tolerances for Needle Roller and Cage AssembliesTable 2-14 Mounting Tolerances for Needle Roller and Cage Assemblies
Nominal Shaft Diameter including 80
over 80
incl.140
over 140
Tolerance
zone ofshaft
Radial
operatingclearance
smaller thannormal
j5 h5 h5 h5 -
normal h5 g5 g5 g5 f5
larger than normal g6 f6 f6 f6 e6
Tolerance zone of housing bore G6 H6 G6 G6 H6
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAA
AAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
Table 2-15 Mounting Tolerances for Drawn Cup Needle Roller BearingsTable 2-15 Mounting Tolerances for Drawn Cup Needle Roller Bearings
Housing Material 1)Housing Material 1)(Rigid Housing)(Rigid Housing)
Housing Tolerance 2)Housing Tolerance 2)ZoneZone
Shaft Tolerance Zone 1)Shaft Tolerance Zone 1)Without Inner RingWithout Inner Ring
With InnerWith InnerRingRing
Steel or Cast Iron N6 (N7)h5 (h6) k5 (j6)
Light Metal R6 (R7)
1) With non-rigid housings, mounting tests should be carried out to determine the shaft
tolerance limits required to obtain the desired operating clearance.
2) The geometrical accuracy of the housing bore must be within the ISO standard tolerance
IT5.
Page 1.400 Motion Technology
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAA
AAAAAAAA
AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAA
AAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
Table 2-22 Tolerances and Surface Texture for Cooper Split Bearings
Diameters and Widths in mmSurfaceTexture
overto &
incl.50
5080
80120
120180
180250
250315
315400
400500
500630
630800
800100
10001250
MaximumRoughness
BS450
Tolerance - µm. (0.001mm)1.5Ra
GradeNo
Shafts PCD
Uni-directional loads atspeeds up to dn=100,000Moderate loads (C/P > 10)dn = Dia of Shaft x RPM
d
h71)
+0-
+0-2
+0-30
+0-35
+0-40
+0-46
+0-52
+0-57
+0-63
+0-70
+0-80
+0-90
+0-105
3.2 N8
Reciprocating loads.Vibratory dutyExtra-fine clearancebearingsSpeeds over dn=100,000Heavy loads (C/P < 10)
h6+0-
+0-1
+0-19
+0-74
+0-25
+0-29
+0-32
+0-36
+0-40
+0-44
+0-50
+0-56
+0-66
1.6 N7
Abutment Diameter, whenused
d h9+0-
62 74 87 100 115 130 140 155 175 200 230 260
Width between abutments,when used
C D11++
8024
1029
120340
145395
170460
190510
210570
230630
Housings
Bore for Outer Race DH72)
- 0+
25 30 35 40 46 52 57 63 70 80 90 105 6.3 N9
Width for Outer Race(lipped races must beclamped axially)
B E7++
5075
6090
72107
85125
100146
110162
125182
135198
6.3 N9
Spherical seatings (forreciprocating loads use minclearance)
G
G72)
g62)
++--
934
925
10401029
12471234
14541439
15611544
17691749
18751854
20832060
25125
25100
50165
25100
75205
50125
100255
50150
3.2
3.2
N8
N8
Clearance bore for clampingrings and abutment for outerrace
Q A11++
3248
3655
410630
580830
820111
105137
135171
165205
208252
264314
333389
41504810
25 N11
Spigot diameter to receiveflange
N f8--
2564
3076
3690
43106
50122
56137
62151
68165
76186
80205
86226
98263
3.2 N8
Geometric Accuracy
Cylindricity of shaft journalParallelism of boreSquareness of abutments
1) For some applications especially at speeds up to dn=50,000 andmoderate loads (C/P>10) wider tolerances h9 IT7 as on standardshafting can be accepted.
2) The tolerances (and IT7 for seating dimensions D and G) are for splithousings, as machined and on mean dimensions. On reassemblythere may be an increase in the tolerance bands and such cases mustbe considered on their merits.
3) IT5 and IT7 are the variations of the surfaces about the true axis of theshaft or housing. Total indicator reading.
4) This dimension may require variation to suit wide clearance bearings,special sealing, etc. Housings are normally swivel but in some casesmay be rigid. Halves should be dowelled or spigotted and boltedtogether.Standard bearings are supplied with normal clearance. For specialconditions, bearings with finer or wider clearance can be supplied, orarranged by using a different shaft tolerance.
ENGINEERING DATA
Page 1.401Motion Technology
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAA
AAAAAAAAAAAA
AAA
AAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAA
AAA
AAAAAAAAAAAA
AAAAAA
Table 2-21 Breaking Loads of BSC SN-SDPlummer Block Housings
HOUSINGNUMBER
Breaking Load x 10 Kgf Cap Bolt x10 KgfP180 3)P60 P90 P120 P150 P180 2)
ENGINEERING DATA Plummer Block Housings:Strength of SN & SD
Notes:
1) Cast Iron (for applications requiringgreater strength, SG iron housings areavailable against indent order).
2) Static breaking loads of P180 indicatethe mean value.
3) Cap bolt material is Commercial Grade4-6.
33
Page 1.402 Motion Technology
ENGINEERING DATA Care and Fitting Practice
BEARING HANDLING
Precautions for Proper Handling of Bearings
Since rolling bearings are high precision machine parts,they must be handled accordingly. Even if high qualitybearings are used, their expected performance cannot beachieved if they are not handled properly. The main pre-cautions to be observed are as follows:
1) Keep Bearings and Surrounding Area Clean
Dust and dirt, even if invisible to the naked eye, have harmfuleffects on bearings. It is necessary to prevent the entry ofdust and dirt by keeping the bearings and their environ-ment as clean as possible.
2) Careful Handling
Heavy shocks during handling may cause bearings to bescratched or otherwise damaged possibly resulting in theirfailure. Excessively strong impacts may cause brinelling,breaking, or cracking.
3) Use Proper Tools
Always use the proper equipment when handling bearingsand avoid general purpose tools.
4) Prevent Corrosion
Since perspiration on the hands and various other con-taminants may cause corrosion, keep the hands clean whenhandling bearings. Wear gloves if possible.
Mounting
The method of mounting rolling bearings strongly affectstheir accuracy, life, and performance, so their mountingdeserves careful attention. Their characteristics should firstbe thoroughly studied, and then they should be mountedin the proper manner. It is recommended that the han-dling procedures for bearings be fully investigated by thedesign engineers and that standards be established withrespect to the following items:
1) Cleaning the bearings and related parts.2) Checking the dimensions and finish of related parts.3) Mounting procedures.4) Inspection after mounting.5) Supply of lubricants.
Bearings should not be unpacked until immediately be-fore mounting. When using ordinary grease lubrication,the grease should be packed in the bearings without firstcleaning them. Even in the case of ordinary oil lubrication,cleaning the bearings is not required. However, bearingsfor instruments or for high speed operation must first becleaned with clean filtered oil in order to remove the anti-corrosion agent. After the bearings are cleaned with fil-tered oil, they should be protected to prevent corrosion.
Prelubricated bearings must be used without cleaning.Bearing mounting methods depend on the bearing typeand type of fit. As bearings are usually used on rotatingshafts, the inner rings require a tight fit. Bearings withcylindrical bores are usually mounted by pressing themon the shaft (press fit) or heating them to expand their di-ameter (shrink fit). Bearings with tapered bores can bemounted directly on tapered shafts or cylindrical shaftsusing tapered sleeves. Bearings are usually mounted inhousings with a loose fit. However, in cases where theouter ring has an interference fit, a press may be used.Bearings can be interference-fitted by cooling them beforemounting using dry ice. In this case, a rust preventive treat-ment must be applied to the bearing because moisture inthe air condenses on its surface.
1. Mounting of Bearings with Cylindrical Bores
a) Press Fits
Fitting with a press fit is widely used for small bear-ings. A mounting tool is placed on the inner ring asshown in Fig. 1.1 and the bearing is slowly pressedon the shaft with a press until the side of the innerring rests against the shoulder of the shaft. Themounting tool must not be placed on the outer ringfor press mounting, since the bearing may be dam-aged. Before mounting, applying oil to the fitted shaftsurface is recommended for smooth insertion. Themounting method using a hammer should only beused for small ball bearings with minimally tight fitsand when a press is not available. In the case oftight interference fits or for medium and large bear-ings, this method should not be used. Any time ahammer is used, a mounting tool must be placed onthe inner ring.
When both the inner and outer rings of non-separa-ble bearings, such as deep groove ball bearings,require tight-fit, a mounting tool is placed on bothrings as shown in Fig. 1.2, and both rings are fitted atthe same time using a screw or hydraulic press. Sincethe outer ring of self-aligning ball bearings may de-flect, a mounting tool such as shown in Fig 1.2 shouldalways be used for mounting them.
In the case of separable bearings, such as cylindri-cal roller bearings and tapered roller bearings, theinner and outer rings may be mounted separately.Assembly of the inner and outer rings, which werepreviously mounted separately, should be done care-fully to align the inner and outer rings correctly. Care-less or forced assembly may cause scratches on therolling contact surfaces.
Page 1.403Motion Technology
ENGINEERING DATA
b) Shrink Fits
Since press fitting large bearings requires a large force,a shrink fit is widely used. The bearings are first heatedin oil to expand them before mounting. This methodprevents an excessive force from being imposed on thebearings and allows mounting them in a short time.
The expansion of the inner ring for various temperaturedifferences and bearing sizes as shown in Fig. 1.3.
The precautions to follow when making shrink fits are asfollows:
(1) Do not heat bearings to more than 100°C.(2) Put the bearings on a wire net or suspend them in an
oil tank in order to prevent them from touching thetank�s bottom directly.
(3) Heat the bearings to a temperature 20° to 30°C higherthan the lowest temperature required for mountingwithout interference since the inner ring will cool alittle during mounting.
(4) After mounting, the bearings will shrink in the axialdirection as well as the radial direction while cooling.Therefore, press the bearing firmly against the shaftshoulder using locating methods to avoid a clear-ance between the bearing and shoulder.
NSK Bearing Induction Heaters
Besides heating in oil, NSK Bearing Heaters, which useelectromagnetic induction to heat bearings, are widelyused.
In NSK Bearing Heaters, electricity (AC) in a coil producesa magnetic field that induces a current inside the bearingthat generates heat. Consequently, without using flamesor oil, uniform heating in a short time is possible, makingbearing shrink fitting efficient and clean.
In the case of relatively frequent mounting and dismount-ing such as cylindrical roller bearings for roll necks or roll-ing mills and for railway journal boxes, induction heatingshould be used for mounting and dismounting inner rings.
2. Mounting of Bearings with Tapered Bores
Bearings with tapered bores are mounted on tapered shaftsdirectly or on cylindrical shafts with adaptors or withdrawalsleeves (see Fig. 1.4 and Fig.1.5). Large spherical rollerbearings are often mounted using hydraulic pressure. Fig.1.6 shows a bearing mounting utilizing a sleeve and hy-draulic nut. Fig. 1.7 shows another mounting method.Holes are drilled in the sleeve which are used to feed oilunder pressure to the bearing seat. As the bearing ex-pands radially, the sleeve is inserted axially with adjustingbolts.
Fig. 1.1 Press FittingInner Ring
Fig. 1.2 SimultaneousPress Fitting ofInner and OuterRings
Fig. 1.3 Temperature and Thermal Expansionof Inner Ring
Spherical roller bearings should bemounted while checking their radial-clearance reduction and referring tothe push-in amounts listed in Table 2-23. The radial clearance must bemeasured using clearance gauges. Inthis measurement, as shown in Fig 1.8,the clearance for both rows of rollersmust be measured simultaneously,and these two values should be keptroughly the same by adjusting the rela-tive position of the outer and innerrings.
When a large bearing is mounted ona shaft, the outer ring may be de-
Care and Fitting Practice
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAA
AAAAAAAA
AAAAAAAAAA
AAAAAAAA
AAAAAAAA
AA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAA
AAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAA
AAAAAAAAA
Table 2-23 Mounting of Spherical Roller Bearings with Tapered BoresTable 2-23 Mounting of Spherical Roller Bearings with Tapered Bores
Bearing Bore DiameterBearing Bore Diameter
d (mm)d (mm)
Reduction in RadialReduction in Radial
Clearance (mm)Clearance (mm)
Axial Movement (mm)Axial Movement (mm) Minimum PermissibleMinimum Permissible
Remarks: The values for reduction in radial internal clearance are for bearings with normal clearance. For bearings with C3
clearance, the maximum values listed should be used for the reduction in radial internal clearance.
Fig. 1.8Clearance
Measurement ofSpherical Roller
Bearing
formed into an oval shape by its own weight. If the clear-ance is measured at the lowest part of the deformed bear-ing, the measured value may be bigger than the true value.If an incorrect radial internal clearance is obtained in this
manner and the values in Table 2-23 are used, then theinterference fit may become too loose and the true residualclearance may become too small. In this case, as shownin Fig. 1.9, one half of the total clearance at points a and b(which are on a horizontal line passing through the bear-ing center) and c (which is at the lowest position of thebearing) may be used as the residual clearance. When aself-aligning ball bearing is mounted on a shaft with anadaptor, be sure that the residual clearance does not be-come too small. Sufficient clearance for easy alignment ofthe outer ring must be allowed.
Fig. 1.9Measuring
Clearance inLarge SphericalRoller Bearing
a
0.025 0.030
0.030 0.035
0.030 0.035
0.040 0.045
0.045 0.055
0.050 0.060
0.060 0.070
0.065 0.080
0.070 0.090
0.080 0.100
0.090 0.110
0.100 0.120
0.110 0.140
0.120 0.150
0.140 0.170
0.150 0.190
0.170 0.210
0.190 0.240
0.210 0.270
0.230 0.300
0.260 0.330
0.280 0.370
0.310 0.410
0.340 0.460
0.370 0.500
Page 1.405Motion Technology
ENGINEERING DATA Care and Fitting Practice
3. Operation Inspection
After the mounting has been completed, a running testshould be conducted to determine if the bearing has beenmounted correctly. Small machines may be manually op-erated to assure that they rotate smoothly. Items to bechecked include sticking due to foreign matter, visible flaws,uneven torque caused by improper mounting or an im-proper mounting surface, and excessive torque caused byan inadequate clearance, mounting error, or seal friction.If there are no abnormalities, powered operation may bestarted.
Large machines, which cannot be turned by hand,can be started after examination with no load, and the powerimmediately cutoff and the machine allowed to coast to astop. Confirm that there is no abnormality such as vibra-tion, noise, contact of rotating parts, etc.
Powered operation should be started slowly withoutload and the operation should be observed carefully untilit is determined that no abnormalities exist, then graduallyincrease the speed, load, etc. to their normal levels. Itemsto be checked during the test operation include the exist-ence of abnormal noise, excessive rise of bearing tempera-ture, leakage and contamination of lubricants, etc. If anyabnormality is found during the test operation, it must bestopped immediately and the machine should be inspected.If necessary, the bearing should be dismounted for exami-nation.
LUBRICATION
Purpose and Method of LubricationLubrication is one of the most important factors determin-ing bearing performance. The suitability of the lubricantand lubrication method have a dominant influence on bear-ing life.
Functions of lubrication:
n To lubricate each part of the bearing, and to reducefriction and wear.
n To carry away heat generated inside bearing due to fric-tion and other causes.
n To cover rolling contact surface with the proper oil filmin order to prolong bearing fatigue life.
n To prevent corrosion and contamination by dirt.
Bearing lubrication is classified broadly into two catego-ries: grease lubrication and oil lubrication. Table 2-24 makesa general comparison between the two.
Grease Lubrication
Grease lubrication is widely applied since there is no needfor replenishment over a long period once grease is filled,and a relatively simple structure can suffice for the lubri-cant sealing device.
There are two methods of grease lubrication. One is theclosed lubrication method, in which grease is filled in ad-vance into shielded/sealed bearing; the other is the feed-ing method, in which the bearing and housing are filledwith grease in proper quantities at first, and refilled at aregular interval via replenishment or replacement.
Devices with numerous grease inlets sometimes employthe centralized lubricating method, in which the inlets areconnected via piping and supplied with grease collectively.
1. Amount of Grease
In general, grease should fill approximately one-third toone-half the inside space, though this varies accordingto structure and inside space of housing.
It must be borne in mind that excessive grease will gen-erate heat when churned, and will consequently alter,deteriorate, or soften.
When the bearing is operated at low speed, however,the inside space is sometimes filled with grease to two-thirds to full, in order to preclude infiltration of foreignmatter.
2. Replenishment/Replacement of Grease
The method of replenishing/replacing grease dependslargely on the lubrication method. Whichever methodmay be utilized, care should be taken to use cleangrease and to keep dirt or other foreign matter out ofthe housing.
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAA
AAAAAAAA
Table 2-24 Comparison Between GreaseTable 2-24 Comparison Between Grease
and Oil Lubrication and Oil Lubrication
ITEMITEM GREASEGREASE OILOIL
Sealing device Easy
Slightly complicated
and special care
required for
maintenance
Lubricating
abilityGood Excellent
Rotation
speed
Low/medium
speed
Applicable at high
speed as well
Replacement
of lubricant
Slightly
troublesomeEasy
Life of
lubricantRelatively short Long
Cooling effectNo cooling
effect
Good (circulation is
necessary)
Filtration of dirt Difficult Easy
Page 1.406 Motion Technology
WIR RELUBRICATION INTERVAL(Not with water spray on above 150°C)
OPERATING RECOMMENDED BEARINGTEMP °C REPLENISHING TYPE
When the bearing operatingtemperature exceeds 70°C,tf�, obtained by multiplying tfby correction coefficient a,found on the scale, shouldbe applied as the feedinginterval.
tf� = tf x a
Care and Fitting Practice
Y Rotating Speed, rpm
Page 1.407Motion Technology
Table 2-25 Type and Method of Oil LubricationTable 2-25 Type and Method of Oil Lubrication
Oil Bath
� Simplest method of bearing immersion in oil for operation.
� Suitable for low/medium rotation speed.� Oil level gauge should be furnished to adjust the amount of oil.
(In the case of horizontal shaft, about 50% of the lowest rolling element should be immersed)
(In the case of vertical shaft, about 70 to 80 % of the bearing should be immersed)
� It is better to use a magnetic plug to prevent wear iron particles from dispersing in oil.
Oil Drip
� Oil is dripped with an oiling device, and the inside of the
housing is filled with oil mist by the action of rotating parts. This method has a cooling effect.
� Applicable at relatively high rotation speed and up to medium load.
� In general, 5 to 6 drops of oil are utilized per minute. (It is difficult to adjust the dripping in 1ml/h or smaller amounts)
� It is necessary to prevent too much oil from being accumulated at the bottom of housing.
Oil Splash
� This type of lubrication method makes use of a gear or simple finger attached to shaft in order to splash oil. This method can
supply oil for bearings located away from the oil tank.� Usable up to relatively high rotation speed.
� It is necessary to keep oil level within a certain range.� It is better to use a magnetic plug to prevent wear iron particles
from dispersing in oil. It is also advisable to set up a shield or baffle board to prevent foreign matter from entering the bearing.
ENGINEERING DATA
4. Grease Life in Shielded/Sealed Ball Bearing
Grease life can be estimated by the following equation whena single-row deep groove ball bearing is filled with greaseand sealed with shields or seals.
log L = 6.10 - 4.40 x 10-6 dmn - 2.50 (Pr/Cr - 0.05)
- (0.021 - 1.80 x 10-8 dmn)T ··· (12 - 1)
where:L = grease life hd
mn = D + d (D : bearing outside diameter, d : bear-
ing 2 bore diameter) mm
n = rotation speed rpmPr = dynamic equivalent radial load NCr = basic dynamic load rating NT = operating temperature of bearing °C
The conditions for applying equation (12-1) are as follows:
a) Operating temperature of bearing: T°CApplicable when T £ 120(when T < 50, T = 50)
When T > 120, please contact BSC.
b) Value of dmn
Applicable when dmn £ 50 x 104
(when dmn < 12.5 x 104, d
mn = 12.5 x 104)
When dmn > 50 x 104, please contact KOYO
c) Load condition : Pr/CrApplicable when Pr/Cr £ 0.2(when Pr/Cr < 0.05, Pr/Cr = 0.05)
When Pr/Cr > 0.2, please contact KOYO
Oil Lubrication
Oil lubrication is useable even at high rotational speed andsomewhat high temperature, and is effective in reducingbearing vibration and noise.
Thus, oil lubrication is used in many cases where greaselubrication does not work.
Table 2-25 shows major types and methods of oil lubrica-tion.
a magnetic plug
Care and Fitting Practice
Page 1.408 Motion Technology
ENGINEERING DATA Care and Fitting Practice
Table 2-25 Type and Method of Oil Lubrication (Cont)Table 2-25 Type and Method of Oil Lubrication (Cont)
Forced OilCirculation
� This method employs a circulation-type oil supply system.
Supplied oil lubricates inside of the bearing, is cooled and sent
back to the tank through an oil escape pipe. The oil, after filtering and cooling, is pumped back.
� Widely used at high rotation speeds and high temperature conditions.
� It is better to use an oil escape pipe approximately twice as thick as the oil supply pipe in order to prevent too much
lubricant from gathering in housing.� Required amount of oil: see remark 1.
Oil Jet
Lubrication
� This method uses a nozzle to jet oil at a constant pressure (10 to 50N/cm²), and is highly effective in cooling.
� Suitable for high rotation speed and heavy load.� Generally, the nozzle (diameter 0.5 to 2 mm) is located 5 to 10
mm from the side of a bearing. When a large amount of heat
is generated, 2 to 4 nozzles should be used.� Since a large amount of oil is supplied in the jet lubrication
method, oil should be discharged with an oil pump to prevent excessive residual oil.
� Required amount of oil: see remark 1.
Oil Mist
Lubrication
(SprayLubrication)
� This method employs an oil mist generator to produce dry mist (air containing oil in the form of mist). The dry mist is continuously sent to the oil supplier, where the mist is turned into a wet mist (sticky oil
drops) by a nozzle set up on the housing or bearing, and is then sprayed onto bearing.� Required amount of mist: see remark 2.
� This method provides and sustains the smallest amount of oil film necessary for lubrication, and has the advantages of preventing oil contamination, simplifying bearing maintenance, prolonging bearing
fatigue life, reducing oil consumption etc.
Oil/AirLubrication
� A proportioning pump sends forth a small quantity of oil, which
is mixed with compressed air by a mixing valve. The admixture is supplied continuously and stably to the bearing.
� This method enables quantitative control of oil in extremely small amounts, always supplying new lubricating oil. It is thus
suitable for machine tools and other applications requiring high
rotational speed.� Compressed air and lubricating oil are supplied to the spindle,
increasing the internal pressure and helping prevent dirt, cutting-liquid, etc from entering. As well, this method allows
the lubricating oil to flow through a feeding pipe, minimizing atmospheric pollution.
� KOYO produces an oil/air lubricator and air cleaner, as well as a spindle unit incorporating the oil/air lubrication system.
Supply of oilSupply of oil
Supply of oil
Dischargeof oil Discharge
of oil
Dischargeof oil
Example of Grinding Machine
Example of Rolling Mill
Oil/air inlet
Oil/air inlet
Oil/air can besupplied here
Oil/airinlet(5 pts)
Oil/air outlet(2 points)Oil/air outlet
Example of Spindle Unit IncorporatingOil/Air Lubrication System
Page 1.409Motion Technology
AAAAAAAAAAAA
AAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAAAAAAAAAAA
AAA
Table 2-26 Bearing Failures, Causes and CountermeasuresTable 2-26 Bearing Failures, Causes and Countermeasures