RINGSPANN® Registered trademark of RINGSPANN GmbH, Bad Homburg N o r t h A m e r i c a n E d i t i o n 2 0 1 5 / 2 0 1 6 F r e e w h e e l C l u t c h e s B a c k s t o p s • O v e r r u n n i n g C l u t c h e s • I n d e x i n g F r e e w h e e l s
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RINGSPANN® Registered trademark of RINGSPANN GmbH, Bad Homburg
Issue 09/2015 • Technical details subject to change without notice.Dodge® is a registered trademark of Baldor Electric Company. • Morse® is a registered trademark of Borg Warner.
Freewheel Technology Introduction Page
Introduction
Design and Function of Freewheels
Applications of Freewheels
Applications for Freewheels
Types to extend service life
Determination of Selection Torque
Complete Freewheels Used as With bearing support
Maximum torque
lb-ft
Maximumbore inch
Page
Backstops OverrunningClutch
IndexingFreewheel
for bolting to the face
FRS and FRSG with sprags
FRX and FRZ with sprag lift-off X or lift-off Z
with torque arm
FRXF with sprag lift-off X, sealed grease lubricated ball bearings
FRHD with sprags
FRHM with sprags
FA with sprags and grease lubrication
with torque arm and clamping collar or mounting flange
RFB with sprags and grease lubricated ball bearings
with shaft coupling
FR … CA with sprags
Accessories for Complete Freewheels FR … Page
Torque Arms TA
End Covers
Internal Freewheels Used as With bearing support
Maximum torque
lb-ft
Maximumbore inch
Page
Backstops OverrunningClutch
IndexingFreewheel
for press fit on the outer ring
ZZ with sprags, bearing supported
ZZ … 2RS with sprags, bearing supported and sealed
ZZ … P2RS with sprags, bearing supported and sealed
ZZ … P with sprags, bearing supported
for keyway connection on the outer ring
ZZ … PP with sprags, bearing supported
RC with sprags
specifically designed as interchange backstops for Dodge® reducers
RCD with sprags
Interchange Charts Page
for Marland, Formsprag, Morse®/EPT and Renold with RINGSPANN Freewheels
FRHD Series - for Formsprag, Marland, Falk, Stephens Adamson and Morse®
Questionnaires Page
for selecting RINGSPANN Backstops
for selecting RINGSPANN Overrunning Clutches
for selecting RINGSPANN Indexing Freewheels
3
Introduction
RINGSPANN GmbH has been in business forover 70 years and is a world leader in PowerTransmission and Workholding Technology.RINGSPANN CORPORATION, as a wholly ownedsubsidiary of RINGSPANN GmbH, designs, manufactures and assembles sprag and rollerclutches mainly for the North American market.With innovative German engineering andAmeri can ingenuity, RINGSPANN CORPORA-TION offers the winning combination of qualityproducts for your needs.
Products contained in this catalog representRINGSPANN CORPORATION’s standard free -wheel clutches. Located in a 20,000 sq. ft. ma-nufacturing facility, RINGSPANN CORPORATIONcan readily design new or modify existing pro-ducts to suit your application.
The RINGSPANN CORPORATION service advantage:• Detailed application support backed by
over 70 years of experience.
• Direct sales and service from the manufacturer
• 24 hour emergency service
• North American industry leader for - Price - Delivery- Customer service- Quality
The RINGSPANN CORPORATIONdesign advantage:• American design and manufacture
• Patented sprag cage designs for increasedtorque and maximum life
• Maximum torque in a minimum space
• Sprag Lift off “X” and “Z“ for infinite, maintenance free life
• Individual springs on every sprag to provide added security against failures
4
4-1
4-2
Inner ring
Outer ring Outer ring
Seal
Clamping elements(sprags in this case)
Ball bearingClamping elements(sprags in this case)
Freewheel with bearing support Freewheel without bearing support
Inner ring
Locking direction or driving operation
Freewheeling direction orfreewheeling operation
Outer ringInner ringClamping elements(Sprags or Rollers)
Design and Function of Freewheels
Freewheels consist of an inner and an outer ringbetween which clamping elements are arran-ged. Clamping elements can be sprags or rol-lers. We differentiate as follows:
• Freewheels with bearing support and
• Freewheels without bearing support.
For a freewheel to function, concentricalignment of the inner and outer ring is requi-red. In the case of freewheels without bearingsupport, concentric alignment must be provi-ded by the customer.
RINGSPANN freewheels are an indispensabledesign element in the machine building indus-try. Many designs are only economical iffreewheels are used. The freewheel as an auto-matic driving element is preferred to conven-tional solutions because it offers the followingsignificant advantages:
• safe
• efficient
• high degree of automation
With more than 50 years experience in the de-velopment, production and sales of freewheels,RINGSPANN offers the most comprehensiverange of freewheels. A global network of subsi-diaries and sales agencies ensures the best pos-sible personal on-site service. Assembly andproduction facilities in various countries pro-vide fast, reliable delivery.
Freewheels are machine elements with particular characteristics:
• In one direction of rotation there is no con-tact between the inner and outer ring; thefreewheel is in freewheeling operation.
• In the opposite direction of rotation there is contact between the inner and outer ring; inthis direction it is possible to transmit torque.
For example the outer ring of the freewheelshown in figure 4-1 can freewheel clockwisewhile the inner ring is stationary. If, however, theouter ring is turned in the opposite direction,there is contact between the inner and outerring and the inner ring is driven (driving opera-tion).
Freewheels are used as:
➧ Backstops
➧ Overrunning Clutches
➧ Indexing Freewheels
Freewheels can fulfill these functions complete -ly automatically in the most diverse machines.No mechanical or hydraulic operating equip-ment is required, such as externally actuatedclutches or brakes.
5
5-1 5-2
5-3 5-4
5-5 5-6
Freewheelingoperation
Freewheelingoperation
Driving operation
Driving operation
Freewheelingoperation
Freewheelingoperation
FreewheelingoperationFreewheeling
operationDriving operation
Driving operation
Inner ring
Applications of Freewheels
➧ BackstopFreewheels are used as backstops if reverserotation of the operating equipment needsto be prevented. In many machines and in-stallations, for technical safety or functionalreasons, it is necessary to ensure that theoperating equipment is in just one specificdirection of rotation. Backstops are usedwhere legal stipulations require a mechani-cal safety device be installed for the opera-tion of conveyor systems.
The normal operating mode of a backstopis freewheeling operation; the locking (tor-que transmission) is performed at zerospeed. The immediate engagement of theclamping elements ensures the requiredhigh operating safety.
➧ Overrunning ClutchThe overrunning clutch engages machinesor machine parts and automatically inter-rupts their contact as soon as the drivenpart of the overrunning clutch is turned fas-ter than the driving part. In many cases, thiscan replace a more expensive externallyactuated clutch.
With overrunning clutches the engage-ment takes place in the driving operation(torque transmission), while in freewheelingoperation the torque transmission betweenthe inner and outer ring is interrupted. In driving operation the speeds of the innerand outer ring are equal, while in free -wheeling operation they are different.
➧ Indexing FreewheelThe indexing freewheel transmits a backand forth motion into a stepped rotation(indexed feed). The RINGSPANN indexingfreewheel enables an infinitly adjustablesetting of the feed, for precise and quietoperation.
In general, backstops are used where the inner ring free-wheels and the stationary held outer ring prevents reverserotation (figure 5-1).
Figure 5-3 shows an overrunning clutch where in driving operation the power flow is transferred from the inner ringto the outer ring and in freewheeling operation the outerring overruns the inner ring at a higher speed.
Figure 5-4 shows an overrunning clutch where in driving operation the power flow is transferred from the outer ringto the inner ring and in freewheeling operation the innerring overruns the outer ring at a higher speed.
Figure 5-5 shows an indexing freewheel where the outerring makes the back and forth motion and the inner ringcarries out the indexed feed.
Figure 5-6 shows an indexing freewheel where the innerring makes the back and forth motion and the outer ringcarries out the indexed feed.
The more complicated designed backstops where the outerring freewheels and the stationary held inner ring preventsreverse rotation are rarely used today (figure 5-2).
6
Gear unitsElectric motorsGear motors
Textile machinesPrinting machines
Textile machinesPrinting machines
Applications for Freewheels
➧ Areas of application for Overrunning Clutches
➧ Areas of application for Indexing Freewheels
Fans
Inclined conveyorsElevatorsBucket elevators
The backstop prevents reverse rotation of the drive of a conveyor installation if the power fails or the motor is turned off.
During normal operation of textile or printing machines, the overrunning clutch separates the auxiliary drive which is used as astarter from the main drive.
If fans are turned off, the overrunning clutch prevents the flywheelmass from rotating the drive.
The indexing freewheel generates an indexed feed in textile andprinting machines.
The backstop prevents reverse rotation of the conveyor load if thepower fails or the motor is turned off.
Packaging machinesFilling plants
The indexing freewheel is used in packaging machines and fillingplants for an indexed feed.
7
PumpsGenerators
Roller conveyor
High voltage switches
Fans PumpsCompressors
In multimotor drives the overrunning clutch disengages theinactive or lower speed drive.
The overrunning clutch ensures that the conveyed material can bepushed or pulled faster over the rollers than the speed of the drive.
In high voltage switches for tensioning a spring, the indexingfreewheel is used in the place of a reduction gear.
The backstop prevents the motor from reverse rotation under theback pressure when it is turned off.
The backstop prevents the motor from reverse rotation under theback pressure when it is turned off.
Seed spreader
The indexing freewheel replaces a reduction gear in seed spreader.
8
a
FC
S
FF
S
a
FC
S
FF
S
8-3 8-4
8-1 8-2
inner ring; the freewheel works without contact.If the outer ring speed decreases to such an ex-tent that the effect of the centrifugal force onthe sprag is less than that of the spring force FF
, the sprag again rests on the inner track and thefreewheel is ready to lock (figure 8-4). If used asan overrunning clutch, the driving speed mustnot exceed 40% of the lift-off speed.
Freewheeling direction orfreewheeling operation
Locking direction or driving operation
Pivot pointCage
and the sprag track of the outer ring; thefreewheel works with out contact. If the innerring speed decreases to such an extent that theeffect of the centrifugal force on the sprag is lessthan that of the spring force FF , the sprag again
Use as
Indexing
Freewheel
Overrunning
Clutch
Backstop
Standard type Type with sprag lift-off X Type with sprag lift-off Z
For universal use To extend service life using sprag lift-offfor high speed rotating inner ring
To extend service life using sprag lift-off for high speed rotating outer ring
Up to medium speeds during freewheeling operation (inner or outer ring freewheels)
Up to very high speeds during freewheeling operation (inner ring freewheels)
Up to very high speeds during freewheeling operation (outer ring freewheels)
Up to medium speeds during freewheeling operation (inner or outer ring overruns)
Up to very high speeds in driving operation (outer or inner ring drives)
Up to very high speeds during freewheeling operation (inner ring overruns)
Low speeds in driving operation (outer ring drives)
Up to very high speeds during freewheeling operation (outer ring overruns)
Low speeds in driving operation (inner ring drives)
Up to a medium total number of actuations
➧
➧
➧
Types to extend service life
Type with sprag lift-off XThe sprag lift-off X is used for backstops andoverrunning clutches, provided that in free -wheeling operation the inner ring is rotating athigh speed and with overrunning clutches thatthe driving operation is at a low speed. In free-wheeling operation, the centrifugal force FCcauses the sprag to lift off from the sprag trackof the outer ring. In this operating state, thefreewheel operates wear-free with unlimitedservice life.
Figure 8-1 shows a freewheel with sprag lift-offX in freewheeling operation. The sprags, whichare supported in a cage connected to the innerring, rotate with the inner ring. The centrifugalforce FC that is applied in the center of gravity Sof the sprag turns the sprag counterclockwiseand rests against the support ring of the cage.This results in the gap “a“ between the sprag
rests on the outer track and the freewheel isready to lock (figure 8-2). If used as an overrun-ning clutch, the driving speed must not exceed40% of the lift-off speed.
Type with sprag lift-off ZThe sprag lift-off Z is used for backstops andoverrunning clutches, provided that in free-wheeling operation the outer ring is rotating athigh speed, and with overrunning clutches thatthe driving operation is at a low speed. In free-wheeling operation, the centrifugal force FCcauses the sprag to lift off from the sprag trackof the inner ring. In this operating state, thefreewheel operates wear-free with unlimitedservice life.
Figure 8-3 shows a freewheel with sprag lift-offZ in freewheeling operation. The sprags rotatewith the outer ring. The centrifugal force FC thatis applied in the centre of gravity S of the spragturns the sprag counterclockwise and restsagainst the outer ring. This results in the gap “a“ between the sprag and the sprag track of the
In addition to the standard type, RINGSPANNhas developed other types to extend service life
for freewheels with sprags. The table above liststhe recommended application conditions for
these types.
Freewheeling direction orfreewheeling operation
Locking direction or driving operation
Pivot pointSupport
ringCage
9
Determination of Selection Torque
Bringing a loaded inclined conveyor, an elevatoror a pump to a standstill is a highly dynamicprocess that incurs high peak torques. Thesepeak torques are critical in the selection of thebackstop. The determination of peak torques inthe case of locking is more accurate by using arotational vibration analysis of the entire sys-tem. This requires a knowledge of rotationalmasses, the rotational rigidity and the excitationmoments that occur in the system. In manycases, a vibrational calculation is too time con-suming or you may not have all the necessarydata in the configuration phase available. In thiscase, the selection torque MA of the backstopshould be determined as follows:
MA = 1.75 · ML [lb-ft]
Often you only have the figures for the motornominal output P0 [hp] available. Then:
MA = F · 5250 · P0/nSP [lb-ft]
In these equations:
MA = Selection torque of the backstop [lb-ft]
ML = Static backdriving torque of the load referring to the backstop shaft [lb-ft]
P0 = Nominal power of motor [hp]
nSP = Speed of backstop shaft [rpm]
F = Selection factor(refer to table)
After calculating MA the backstop size must beselected in accordance with the catalog tablesin such a way that in all cases this applies:
MN ≥ MA
MN = Nominal torque of the backstop in accordance with the table values [lb-ft]
It must be noted that, with a direct motor startin the locking direction of a backstop, very highpeak torques can occur which in turn can destroy the backstop.
Approximate values for F:
Selection torque for Backstops
In many cases where overrunning clutches arebeing used, dynamic processes occur thatcause high peak torques. In the case of overrun-ning clutches, the torques that occur duringstart up must be observed. The peak torqueswhen starting up can, in the case of asynchro-nous motors – especially when acceleratinglarge masses and when using elastic coup-lings – significantly exceed the torque calcula-ted from the motor pull-over torque. Theconditions for internal combustion engines aresimilar. Even in normal operation, their degreeof irregularity, peak torques can occur that areconsiderably greater than the nominal torque.
The prior determination of the maximum oc-curring torque is carried out more accurately byusing a rotational vibration analysis of the entire system. This, however, requires a knowledge ofthe rotating masses, the rotational rigidity andall of the excitation moments that occur on thesystem. In many cases, a vibrational calculationis too time consuming or you may not have allthe necessary data in the configuration phaseavailable. In this case, the selection torque MAof the overrunning clutch should be deter-mined as follows:
MA = K · ML
In this equation:
MA = Selection torque of the freewheel
K = Operating factor (refer to table)
ML = Load torque for constant rotating freewheel:
= 5 250 · P0/nFR
P0 = Nominal power of motor [hp]
nFR = Speed of the freewheel in driving operation [rpm]
After calculating MA the freewheel size must beselected in accordance with the catalog tablesin such a way that in all cases this applies:
MN ≥ MA
MN = Nominal torque of the freewheel in accordance with the table values [lb-ft],
Approximate values for operating factor „K“:
The operating factor K depends on the proper-ties of the driver and the machine. The generalrules of mechanical engineering apply here. Weknow from practice that applications are knownwhere the operating factor K can also assumevalues of up to 20, e.g. with a direct start-up ofasynchronous electric motors in connectionwith elastic couplings.
Selection torque for Overrunning Clutches
The selection torque for indexing freewheels is,among other things, dependent upon how theback and forth motion is generated (crank
operation, hydraulic cylinders, pneumatic cylin-ders etc.). It cannot be specified in a simpleequation. When stating the maximum torque
to be transmitted, we are happy to advise you regarding the selection torque.
Selection torque for Indexing Freewheels
Type of driver K
Electric motors with low start up impact (e.g.DC motors, asynchronous motors with sliprings or soft start couplings), steam turbines,gas turbines
0.8to2.5
Electric motors with considerable start up im-pact (e.g. synchronous or asynchronous motorswith direct start)
1.25to2.5
Piston engines with more than two cylinders,water turbines, hydraulic motors
1.25to
3.15
Piston engines with one or two cylinders1.6to
3.15
Type of installation F
Conveyor belts, angle up to 6° 0.88
Conveyor belts, angle up to 8° 1.07
Conveyor belts, angle up to 10° 1.21
Conveyor belts, angle up to 12° 1.29
Conveyor belts, angle up to 15° 1.39
Screw pumps 1.51
Ball mills, drying drums 1.26
Bucket conveyors, elevators 1.48
Hammer mills 1.51
Fans, Ventilators 0.49
10
10-1
10-1
Application exampleComplete Freewheels FRS 600 in both driveunits of a transport system with a conveyor beltthat moves both forward and backward (rever-sible operation). In order to ensure that the con-veyor belt is moved under tension, forwardmovement is driven by drive unit I, reverse mo-vement by drive unit II. The freewheels automa-tically disengage the respective non workingdrive, eliminating the need for expensive exter-nal clutches or brakes.
For forward movement, drive unit II is started infreewheeling direction of freewheel II; free -wheel II is in freewheeling operation and disen-gages drive unit II from the conveyor belt.Afterwords drive unit I is started in the lockingdirection of the freewheel I; freewheel I is in dri-ving operation and the conveyor belt is movedforward by drive unit I. The speed of drive unit Iis lower than that of drive unit II. Thus freewheelII remains in freewheeling operation and driveunit II is not improperly engaged.
For reverse movement, the drive units arestarted in reverse order and direction of rotationat the corresponding speeds.
The mentioned application for a reversing con-veyor requires speed control for both of thedrives.
Conveyors operating in the same direction canuse clutches in conjunction with the two drives.
Complete Freewheels FRS and FRSGfor bolting to the facewith sprags
Application as
➧ Backstop
➧ Overrunning Clutch
➧ Indexing Freewheel
FeaturesComplete Freewheels FRS and FRSG are sealedsprag freewheels with ball bearings and readyfor installation.
The freewheels FRS are supplied oil-filled.
The freewheels FRSG are supplied grease filled.
Maximum torques up to 55 000 lb-ft.
Bores up to 7 inch. Standard bores in inch dimension are available from stock. Metricbores on request.
Drive unit II
Freewheel IFreewheel II
backward forward
Lockingdirection
Freewheelingdirection
Freewheelingdirection Locking
direction
RINGSPANN has developed a utility model for such applications with reversible operation.
MountingThe customer attachment part is centered onthe external diameter D and then bolted on tothe face.
The recommended tolerance of the shaft is + 0/ - 0.001 inch and the tolerance of the pilot dia-meter D of the attachment part is - 0 / + 0.002inch.
Labyrinth SealsLabyrinth seals are available to provide addi -tional protection for harsh environments.
Complete Freewheels FRS and FRSGfor bolting to the facewith sprags
Freewheel Size
Bore d D
inch
F
inch
GThread
L
inch
H
inch
O
inch
T
inch
Z* Weight
lbsStandard bores
inchmax.inch
* Z = Number of tapped holes G on pitch circle T. ** Six holes are equally spaced 60° apart with two additional holes located 30° from the six equally spaced holes and 180° apart.Keyway dimensions upon request by customers.
Standard typeFor universal use
Standard type - grease lubricatedFor universal use
Freewheel Size
Maximum torque
MMlb-ft
Nominal torque
MNlb-ft
inner ringfreewheels/
overrunsrpm
outer ringfreewheels/
overrunsrpm
Freewheel Size
Maximum torque
MMlb-ft
Nominal torque
MNlb-ft
inner ringfreewheels/
overrunsrpm
outer ringfreewheels/
overrunsrpm
See page 9 for determination of selection torque.
➧➧➧
Inde
xing F
reew
heel
Over
runn
ing C
lutch
Back
stop
Max. speed Max. speed
12
12-1
12-1
Application exampleComplete Freewheel FRX 600 as an overrun-ning clutch in the drive unit of a conveyor beltsystem with additional creep drive. The free -wheel with shaft coupling is installed betweenthe main motor and the creep drive. When thecreep drive operates, the freewheel is in drivingoperation and drives the belt at low speed. Du-ring normal operation (freewheeling opera-tion), the main motor drives and the inner ringoverruns and the creep drive is automaticallydisengaged. With this high speed, sprag lift-offX is used; the sprags work in freewheeling ope-ration without contact and are wear-free.
Complete Freewheels FRX and FRZ for bolting to the facewith sprag lift-off X or lift-off Z
Application as
➧ Backstop
➧ Overrunning Clutch
FeaturesComplete Freewheels FRX and FRZ are sealedsprag freewheels with ball bearings and spraglift-off X or sprag lift-off Z.
Maximum torques up to 30 000 lb-ft.
Bores up to 5.438 inch. Standard bores in inchdimension are available from stock. Metricbores on request.
MountingThe customer attachment part is centered onthe external diameter D and then bolted on tothe face.
The recommended tolerance of the shaft is + 0/ - 0.001 inch and the tolerance of the pilot dia-meter D of the attachment part is - 0 / + 0.002inch.
Labyrinth SealsLabyrinth seals are available to provide addi -tional protection for harsh environments.
Complete Freewheels FRX and FRZ for bolting to the facewith sprag lift-off X or lift-off Z
Max. speed Max. speed
Type with sprag lift-off X To extend service life using sprag lift-off
for high speed rotating inner ring
Type with sprag lift-off Z To extend service life using sprag lift-off
for high speed rotating outer ring
Freewheel Size
Maximum torque
MMlb-ft
Nominal torque
MNlb-ft
Sprag lift-offat inner ring
speedrpm
inner ringfreewheels/
overrunsrpm
outer ringdrives
rpm
Freewheel Size
Max. torque
MMlb-ft
Nominal torque
MNlb-ft
Sprag lift-off at outer ring
speed rpm
outer ringfreewheels/
overrunsrpm
inner ringdrives
rpm
See page 9 for determination of selection torque.
➧➧Ov
erru
nnin
g Clu
tchBa
cksto
p
Freewheel Size
Bore d D
inch
F
inch
GThread
L
inch
H
inch
O
inch
T
inch
Z** Weight
lbsStandard bores
inchmax.inch
* Not available for FRX. Max bore 0.875 inch.** Z = Number of tapped holes G on pitch circle T. *** Six holes are equally spaced 60° apart with two additional holes located 30° from the six equally spaced holes and 180° apart.Keyway dimensions upon request by customers.
14
14-1
14-2
Application as
➧ Backstop
FeaturesComplete Freewheels FRXF are freewheels withsprag lift-off X, labyrinth seals, and sealedgrease lubricated ball bearings. All units aresupplied complete with torque arms. FRXFbackstops are maintenance free and lubricatedfor life prior to shipping.
Maximum torques up to 29 000 lb-ft.
Bores up to 4.5 inch. Standard bores are avail -able from stock.
Complete Freewheels FRXF with torque armwith sprag lift-off X and sealed grease lubricated ball bearings
Application exampleComplete Freewheel FRXF as backstop, ar -ranged at the end of a high speed shaft of thegearbox. The back driving torque is restrainedby the clutch torque arm and the gearbox tor-que arm pin.
With this high shaft speed under normal ope-ration (freewheeling operation), sprag lift-off Xis used; the sprags work in freewheeling opera-tion without contact and are wear-free.
Complete Freewheels FRXF with torque armwith sprag lift-off X and sealed grease lubricated ball bearings
MountingThe back driving torque is restrained by theclutch torque arm and the gearbox torque armpin. It must have clearance of 1/4 inch to 1/2inch in both radial and axial directions.
Complete Freewheels FRXF are furnished to sizefor a slip fit on the shaft.
Non lift off clutch varieties are available whenoperating below sprag lift off speeds.
LubricationThe freewheels FRXF 700 and larger are sup-plied with labyrinth seals, sealed grease lubri-cation ball bearings and required no additionallubrication.
Type with sprag lift-off X To extend service life using sprag lift-off
for high speed rotating inner ring
Dimensions
Bore d
A
inch
F
inch
H
inch
L
inch
M
inch
N
inch
O
inch
R
inch
TorquearmSize
Weight
lbsStandard bores
inchmax.inch
See page 9 for determination of selection torque.* Maximum recommended operating speed.Keyway dimensions upon request by customers.
➧
Back
stop
FreewheelSize
Maximum torque
MM
lb-ft
Nominal torque
MN
lb-ft
Sprag lift-off at
inner ringspeedrpm*
Maximumspeed
inner ringoverruns
rpm
Size FRXF 550 Size FRXF 700 to FRXF 800
16
16-1
16-2
16-3
Application exampleBackstop FRHD 900 on the head pulley shaft ofan inclined conveyor belt system. The torquearm is bolted to the freewheel. The back drivingtorque is restrained by the torque arm on thebase plate.
MountingThe backdriving torque is restrained by the tor-que arm.The torque arm must not be clampedinto position. It must have 0.5 inch play in theaxial and in the radial direction.
Complete Freewheel FRHDwith torque armwith sprags
Application as
➧ Backstop
for installations with low speeds. The freewheelsare designed for the use in inclined conveyor-belts, elevators or pumps. Taconite seals protectthe freewheels from contamination with dustor dirt.
FeaturesComplete Freewheels FRHD with torque armare sealed sprag freewheels with ball bearings.They are supplied oil-filled and ready for instal-lation. The freewheels are arranged on throughshafts or shaft ends.
Complete Freewheel FRHD with torque armwith sprags
Bore d
max.inch
A
inch
C
inch
D
inch
E
inch
H
inch
L
inch
O
inch
P
inch
Q
inch
Weight
lbs
Freewheel Size
Maximum torque
MM
lb-ft
Nominal torque
MN
lb-ft
Maximum speed
inner ringfreewheels
rpm
See page 9 for determination of selection torque. • Keyway dimensions upon request by customers.
Size FRHD 700 to FRHD 950 and FRHD 1050
Size FRHD 1 000 and FRHD 1100 to FRHD 1 900
18
18-1
18-2
Application exampleBackstop FRHM 900-12 on the head pulley shaftof an inclined conveyor. The back driving torqueis restricted by the torque arm on the baseplate.
Complete Freewheel FRHM with torque armwith sprags
Application as
➧ Backstop
for installations with low speeds. The freewheelsare designed for the use in inclined conveyor-belts, elevators or pumps. Taconite seals protectthe freewheels from contamination with dustor dirt.
FeaturesComplete Freewheels FRHM with torque armare sealed sprag freewheels with ball bearings.They are designed for interchanging the Morse®CB units, supplied oil-filled and ready for instal-lation
The freewheels FRHM are arranged on throughshafts or shaft ends.
Maximum torques up to 56 000 lb-ft.
Bores up to 7 inch.
Head pulley
Motor
Reduction gear
Conveyor Belt
Backstop
Torque arm support
MountingThe back driving torque is restrained by the tor-que arm. The torque arm must not be clampedinto position. It must have 0.5 inch play in theaxial and in the radial direction.
FRHM backstops are supplied for a clearance fit.Set screws on the inner ring are provided foraxial retention, shaft collars are not required.
Complete Freewheel FRHM with torque armwith sprags
Standard typeFor universal use
Dimensions
Bore d
max.inch
A
inch
C
inch
D
inch
E
inch
H
inch
J*
inch
L*
inch
N
inch
O
inch
Q
inch
R*
inch
Weight
lbs
See page 9 for determination of selection torque.Keyway dimensions upon request by customers.* Shaft length L and stirrup position J or pin position R should be considered. These dimensions may vary from the Morse® Series CB.
Morse® is a registered trademark of Borg Warner.
➧
Back
stop
Freewheel Size
Maximum torque
MM
lb-ft
Nominal torque
MN
lb-ft
Maximum speed
inner ringfreewheels
rpm
20-1
20-2
20
Application exampleTwo Complete Freewheels FA 57 in the rollerfeed of a sheet metal processing machine. Theindexing freewheel arranged on the left isdriven via a bell crank with an adjustable lift.This enables an infinite setting of the feed. Thebackstop arranged on the right prevents the in-dexing rollers from running backwards whilethe indexing freewheel carries out its backstroke. Often, an additional small brake is pro-vided in order to prevent the accelerated sheetmetal strip from advancing.
Complete Freewheels FAwith torque armwith sprags and grease lubrication
Application as
➧ Backstop
➧ Indexing Freewheel
For application as backstop in installations withlow speeds in freewheeling operation. For ap-plication as indexing freewheel in installationswith low to medium total number of actuations.
FeaturesComplete Freewheels FA with torque arm aresprag freewheels with sleeve bearings. They aregrease-lubricated and require no maintenance.
FA 37 SF 340 170 250FA 57 SF 930 465 170FA 82 SF 2 360 1 180 130FA 107 SF 3 690 1 845 90
21
Standard typeFor universal use
Dimensions
Bore d
C
inch
D
inch
E
inch
H
inch
L
inch
N
inch
Weight
lbsmax.inch
FreewheelSize Type
Maximum torque
MM
lb-ft
Nominal torque
MN
lb-ft
Max. speedinner ringfreewheels
rpm
➧
Complete Freewheels FAwith torque armwith sprags and grease lubrication
MountingWhen used as a backstop, the backdriving tor-que is supported by the torque arm. The torquearm must not be clamped into position. It musthave 0.002 to 0.008 inch play in the axial and ra-dial directions.
When used as an indexing freewheel, the tor-que arm serves as the indexing lever arm.
The torque arm is not heat treated enabling thecustomer alter the torque arm to suit his appli-cation.
The recommended tolerance of the shaft is + 0 / - 0.001 inch.
See page 9 for determination of selection torque.Keyway dimensions upon request by customers.
➧Inde
xing Freewheel
Backstop
22
22-1
22-2
Complete Freewheels RFBwith torque arm and clamping collar or mounting flangewith sprags and grease lubricated ball bearings
Application as
➧ Backstop
FeaturesFeaturesComplete Freewheels RFB are sprag freewheelswith sealed grease lubricated ball bearings thatrequire no maintenance. They are supplied witha clamping collar or a flange for direct moun-ting to standard bushings.
Maximum torques up to 900 lb-ft.
Bores up to 6 inch with clamping collar.
Application exampleComplete Freewheel RFB as a backstop on a ra-dial fan. The backstop prevents reverse rotationof the fan shaft from air flow or from incorrectlypolarized drive motor.
MountingBackstops RFB are mounted with either a clam-ping collar to shaft end or a mounting flangethat can be connected directly to a QD or TaperLock bushing.
Additional shaft accessories may be required forRFB-TL designs, contact RINGSPANN.
Standard typeFor universal use
Dimensions
Bore d A
inch
C*
inch
F
inch
M
inch
O
inch
Q
inch
Connection/Bushing Type
min.inch
max.inch
See page 9 for determination of selection torque.* A 3/4” inch diameter arm extension is available upon request.
➧
Back
stop
FreewheelSize Type
Maximum torque
MM
lb-ft
Nominal torque
MN
lb-ft
Maximum speed
inner ringfreewheels
rpm
Complete Freewheels RFBwith torque arm and clamping collar or mounting flangewith sprags and grease lubricated ball bearings
Tightening screws 2 x 1/2“-20Tightening torque125 lb-ft
Size RFB 350 and 450 Type Cwith clamping collar
Size RFB 450 Type QD andTaper Lock with mounting flange
24
24-1
24-2
24-3
Application as
➧ Overrunning Clutch
FeaturesComplete Freewheel FR … CA incorporate afreewheel FR … and a gear coupling. Free -wheels are supplied oil or grease lubricated.
Maximum torques up to 55 000 lb-ft.
Bores up to 7 inch.
Complete Freewheels FR … CA allow for remo-val of the assembly without moving the con-nected equipment. The clutch should always bemounted on the low temperature shaft of theapplication.
Application ExampleTwo Complete Freewheels FR … CA with gearcoupling as overrunning clutches in the driveunit of a tube mill with additional auxiliary drive.A freewheel FRSG 600 CA 2.0 (Freewheel 1) is ar-ranged between the main drive and the rightangle gear box. A freewheel FRZ 500 CA 1.5(Freewheel 2) with sprag lift-off Z (page 26) ispositioned between the auxiliary drive and theright angle gear box. If the auxiliary drive is ope-rating, Freewheel 2 works in the driving opera-tion and the Freewheel 1 overruns at a lowspeed (freewheel operation). When driving viathe main drive, the unit is driven thru Freewheel1 (driving operation) Freewheel 2 overruns andautomatically disengages the auxiliary drive(freewheeling operation). With the high speed,the type with sprag lift-off Z is used. There is nocontact of the sprags during freewheeling andtherefore no wear.
Main drive
Auxiliary drive
Freewheel 1 FRSG 600 CA 2.0
Freewheel 2 FRZ 500 CA 1.5
Right angle gear box
Clutch Coupling Packages CC
Additional Clutch Couplings
Clutch Coupling Packages DC Clutch Coupling Packages UJ
FRS 300 CA F 1.0 420 210 2 500 2 600 FRSG 300 CA 420 210 3 600 3 600FRS 400 CA F 1.0 670 335 1 900 2 100 FRSG 400 CA 670 335 3 600 3 600FRS 500 CA F 1.5 1600 800 1 400 1 900 FRSG 500 CA 1600 800 3 600 3 600FRS 550 CA F 2.0 3050 1525 1 175 1 600 FRSG 550 CA 3050 1525 3 600 3 600FRS 600 CA F 2.0 3900 1950 1 100 1 500 FRSG 600 CA 3900 1950 3 600 3 600FRS 650 CA F 2.5 5400 2700 900 1 250 FRSG 650 CA 5400 2700 3 600 3 600FRS 700 CA F 3.0 11050 5525 790 1 150 FRSG 700 CA 11050 5525 1 800 1 800FRS 750 CA F 3.5 18700 9350 790 1 150 FRSG 750 CA 18700 9350 1 800 1 800FRS 775 CA F 4.0 17 000 8 500 750 1 050 FRSG 775 CA 17 000 8 500 1 800 1 800FRS 800 CA F 4.0 22200 11100 700 950 FRSG 800 CA 22200 11100 1 800 1 800FRS 900 CA F 4.5 33600 16800 700 950 FRSG 900 CA 33600 16800 1 200 1 200FRS 1000 CA F 5.0 55000 27500 630 800 FRSG 1000 CA 55000 27500 1 200 1 200
Complete Freewheels FRS … CA and FRSG … CAwith gear couplingwith sprags
Mounting The gear coupling and stub adapter with faste-ners are supplied loose. Depending on the de-sired freewheeling direction, the gear couplingcan me mounted on either the drive or drivenshaft.
Labyrinth SealsLabyrinth seals are available to provide addi -tional protection for harsh environments.
Freewheel FR … CA
Standard typeFor universal use
Standard type - grease lubricatedFor universal use
Freewheel Size
Coup-lingSize
Maximum torque
MMlb-ft
Nominal torque
MNlb-ft
inner ringfreewheels/
overrunsrpm
outer ringfreewheels/
overrunsrpm
Freewheel Size
Maximum torque
MMlb-ft
Nominal torque
MNlb-ft
inner ringfreewheels/
overrunsrpm
outer ringfreewheels/
overrunsrpm
See page 9 for determination of selection torque.
* Note Weights are based on Solid Coupling hubs. Weights will vary with required bores. • Keyway dimensions upon request by customers.
➧➧➧
Inde
xing F
reew
heel
Over
runn
ing C
lutch
Back
stop
Max. speed Max. speed
Freewheel Size
Bore A
inch
DBSE
inch
E
inch
L1
inch
L2
inch
Weight*
lbs
max.Freewheel d1
inchCoupling d2
inch
26
E
DBSE L2
Cou
plin
g Bo
reø
d2 ø A
Free
whe
el B
ore
ø d1
L1
26-1
FRX 400 CA F 1.0 250 125 860 4 000 340 FRZ 400 CA 560 280 800 2 600 320FRX 500 CA F 1.5 850 425 750 4 000 300 FRZ 500 CA 1070 535 1 400 2 050 560FRX 550 CA F 2.0 1500 750 700 4 000 280 FRZ 550 CA 2760 1380 1 550 1 800 620FRX 600 CA F 2.0 2000 1 000 670 4 000 265 FRZ 600 CA 3530 1765 1 450 1 650 580FRX 650 CA F 2.5 3500 1 750 610 3 100 240 FRZ 650 CA 5000 2500 1 300 1 400 520FRX 700 CA F 3.0 8100 4 050 350 2 600 140 FRZ 700 CA 10500 5250 1 160 1 200 465FRX 750 CA F 3.5 14600 7 300 320 2 400 125 FRZ 750 CA 17500 8750 1 160 1 200 465FRX 775 CA F 4.0 14 800 7 400 320 2 100 125 FRZ 775 CA 15 000 6500 950 1 050 380FRX 800 CA F 4.0 29000 14 500 250 1 800 100 FRZ 800 CA 17400 8700 880 975 350FRX 900 CA F 4.5 30000 15 000 250 650 100 FRZ 900 CA 26000 13000 720 925 288
Complete Freewheels FRX … CA and FRZ … CAwith gear couplingwith sprag lift-off …
Freewheel FR … CA
See page 9 for determination of selection torque.
Max. speed Max. speed
* Note Weights are based on Solid Coupling hubs. Weights will vary with required bores. • Keyway dimensions upon request by customers.
Freewheel Size
Bore A
inch
DBSE
inch
E
inch
L1
inch
L2
inch
Weight*
lbs
max.Freewheel d1
inchCoupling d2
inch
Type with sprag lift-off X To extend service life using sprag lift-off
for high speed rotating inner ring
Type with sprag lift-off Z To extend service life using sprag lift-off
for high speed rotating outer ring
Freewheel Size
Coup-lingSize
Maximum torque
MMlb-ft
Nominal torque
MNlb-ft
Sprag lift-offat inner ring
speedrpm
inner ringfreewheels/
overrunsrpm
outer ringdrives
rpm
Freewheel Size
Max. torque
MMlb-ft
Nominal torque
MNlb-ft
Sprag lift-off at outer ring
speed rpm
outer ringfreewheels/
overrunsrpm
inner ringdrives
rpm
➧➧Ov
erru
nnin
g Clu
tchBa
cksto
p
27
ø N
CEJ
H
Q
27-1
27-1
Torque Arm C
inch
E
inch
H
inch
J
inch
N
inch
Q
inch
Weight
lbs
TA 300 2.00 0.375 8.375 1.000 0.53125 6.250 2
TA 400 2.00 0.375 8.625 1.000 0.53125 6.250 3
TA 500 2.00 0.375 9.000 1.125 0.53125 6.250 3
TA 550 2.25 0.375 10.125 1.375 0.78125 7.000 4
TA 600 2.50 0.375 11.500 1.500 0.78125 8.000 5
TA 650 3.00 0.375 13.625 1.750 0.78125 9.500 6
TA 700 3.00 0.500 15.000 2.000 1.31250 10.500 7
TA 750 3.75 0.500 18.375 2.375 1.28125 12.875 9
TA 775 4.00 0.500 20.000 2.500 1.53125 13.500 14
TA 800 4.00 0.500 21.000 2.750 1.53125 14.625 16
TA 900 4.75 0.875 30.500 3.375 1.53125 22.875 17
TA 1000 5.25 0.875 32.000 3.375 1.78125 23.000 51
Torque Arms TATorque Arms TA are offered as an accessory forFreewheels FRS, FRSG and FRX when used as abackstop.
The torque arms are supplied pre-drilled andready for installation.
InstallationThe torque arm must not be rigidly anchoredbut must be restrained by either a non-threa-ded pin or an angle iron bracket.
When a pin is used the diameter of the pin mustbe 1/32 of an inch smaller than the pin hole dia-meter N of the torque arm.
End CoversEnd covers are available to protect operatingpersonnel from coming in contact with the ro-tating shaft for all Complete Freewheels FR … .Contact fatory for availability.
Accessories for Complete Freewheels FR … Torque Arms TA and End Covers
Torque arms TA for Complete Freewheels FR …
28
28-1
28-2
28-3
ZZ 29ZZ … 2RS 30ZZ … P2RS 30ZZ … P 31ZZ … PP 31
Application exampleTwo Internal Freewheels ZZ 6206 as indexingfreewheels in the drive of the metering roller ofa seed spreader. The freewheels are built in aninfinitely variable oil bath gearbox. Two camdisks that are off set by 180° are arranged on thegearbox shaft. By means of torque arms, thesedrive the outer rings of the two adjacent Inter-nal Freewheels, which then gradually turn the metering shaft. The infinite speed settings ofthe gearbox’s drive shaft are executed bymeans of the respective pivoting of the rollersupport plate, so that the torque arms can exe-cute lifts of differing amounts.
FeaturesInternal Freewheels ZZ … are sprag freewheelswith bearing support and ball bearing proper-ties. The freewheels are supplied grease-filledfor normal operating conditions.
The freewheel is assembled into the customer housing, allowing a compact, space-saving so-lution.
Maximum torques up to 480 lb-ft/650 Nm. Thetorque is transmitted on the inner ring and/oron the outer ring by press fit or keyway con-nection.
Bores up to 1.575 inch/40 mm.
The following series are available:
The Internal Freewheels ZZ of the sizes ZZ 6201to ZZ 6207 have the same dimensions as the re-spective ball bearings of series 62.
Internal Freewheels ZZfor press fit on the outer ringwith sprags, bearing supported
MountingThe torque is transmitted on the inner ring andouter ring by press fit. In order to transmit thetorques specified in the table, the outer ringmust be installed in a housing with an externaldiameter K. The housing should be made ofsteel or grey cast iron in minimum quality GG-20. When using other housing materials orsmaller external diameters, we urge you to con-tact us regarding the transmissible torque.
The tolerance of the housing bore D must beISO N6 and the tolerance of the shaft must beISO n6.
The permissible operating temperature of thefreewheel is - 40°F to +175°F.
LubricationThe freewheels are supplied grease-filled fornormal operating conditions. However, thefreewheels can also be connected to the custo-mer´s oil lubrication system; this is particularlyrecommended in the case of higher speeds.
Internal Freewheels ZZ … 2RS and ZZ … P2RSfor press fit on the outer ringwith sprags, bearing supported and sealed
MountingSeries ZZ … 2RS: The torque is transmitted on the inner ring andouter ring by press fit.
Series ZZ … P2RS: The torque is transmitted on the inner ring bykeyway connection and on the outer ring bypress fit.
In order to transmit the torques specified in thetable, the outer ring must be installed in a hou-sing with an external diameter K. The housingshould be made of steel or grey cast iron in mi-nimum quality GG-20. When using other hou-sing materials or smaller external diameters, weurge you to contact the factory regarding thetransmissible torque.
The tolerance of the housing bore “D“ must beISO N6 and the tolerance of the shaft must beISO n6.
The permissible operating temperature of thefreewheel is + 40°F to +140°F. Please contact thefactory if the temperature is different than thegiven values.
LubricationThe freewheels are supplied grease-filled andwith two RS seals.
See page 9 for determination of selection torque.Keyway according to DIN 6885, page 3 • Tolerance of keyway width JS10. * Only one RS seal on the ball bearing side. Locking from this side the freewheeling direction of the inner ring is clockwise free.
See page 9 for determination of selection torque.Keyway according to DIN 6885, page 1 • Tolerance of keyway width JS10. * Keyway according to DIN 6885, page 3 • Tolerance of keyway width JS10.
➧➧➧
Inde
xing F
reew
heel
Over
runn
ing C
lutch
Back
stop
Internal Freewheels ZZ … P and ZZ … PPfor press fit or keyway connection on the outer ringwith sprags, bearing supported
MountingSeries ZZ … P: The torque is transmitted on the inner ring bykeyway connection and on the outer ring bypress fit.
Series ZZ … PP: The torque is transmitted on the inner and onthe outer ring by keyway connection.
In order to transmit the torques specified in thetable, the outer ring must be installed in a hou-sing with an external diameter K. The housingshould be made of steel or grey cast iron in mi-nimum quality GG-20. When using other hou-sing materials or smaller external diameters, weurge you to contact the factory regarding thetransmissible torque.
The tolerance of the housing bore “D“ must beISO N6 and the tolerance of the shaft must beISO k6.
The permissible operating temperature of thefreewheel is + 40°F to +140°F. Please contact thefactory if the temperature is different than thegiven values.
LubricationThe freewheels are supplied grease-filled.
32
32-1
ø D
-0,0
015
ø J
P
B
N
N
A
0,002 A
32-2
2.0482 2.0463 1.000 0.929/0.930 3/16 x 3/32 205 0.752.4422 2.4403 1.125 1.289/1.290 1/4 x 1/8 206 1.002.8360 2.8341 1.125 1.656/1.657 1/4 x 1/8 207 1.253.1510 3.1491 1.250 1.840/1.841 3/8 x 3/16 208 1.753.5447 3.5248 1.250 2.208/2.209 3/8 x 3/16 210 2.00
FeaturesInternal Freewheels RC are sprag freewheelswithout inner ring or bearing support. The cus-tomer's hardened and ground shaft is used asthe inner ring.
Maximum torques up to 1 240 lb-ft.
The freewheel is incorporated into the custo-mer’s housing, allowing for a compact, spacesaving solution.
MountingInternal Freewheels RC require bearing supportand a shaft hardened to HRC 58-62 with a 0.060inch case depth after grinding to a 16 micro fi-nish. Concentric alignment of the shaft andhousing bore is required.
LubricationInternal Freewheels RC require either grease oroil lubrication. Lubrications containing molyb-denum disulphide must not be used.
Internal Freewheels RCfor keyway connection on the outer ringwith sprags
Standard typeFor universal use
Dimensions
Housing Bore Diameter
D
inch
Freewheel Diameter
D
inch
B
inch
Shaft Diameter
J
inch
KeywayN x P
inch
Use with bearing Weight
lbs
See page 9 for determination of selection torque.
➧
Back
stop
FreewheelSize
Maximum torque
MM
lb-ft
Nominal torque
MN
lb-ft
33
33-1
TXTSeries
ObsoleteTXT
Series
TDTSeries
TDSeries
BackstopPart Number
RCD-3 309A 315A 325A 243106
RCD-4 409A 415A 425A 244106
RCD-5509 515 525509B 515A 525A515B 525B
245154
RCD-6 609 615 625T16
605No. 16A
615 625615A 625A 615 625 246092
RCD-7 709 715 725T17
705No. 17A 715 725 715 725
715A 725A 247260
RCD-8/9815 825915 926No. 8 No. 9
No. 18815 825915 926
1115 1125
815 825 815A 825A
9151115 1125
249260
RCD-10/12 1015 10241215 1225
805T 18
1015 10241215 1225
9261015 10241215 1225
250260
RCD-13 905 1325 272259
MountingInternal Freewheels RCD are used to inter-change backstops installed by the gearbox ma-nufacturer. Installation instructions and recom-mendations by the gearbox manufacturershould be followed for the safe operation andlongevity of the backstop.
LubricationOil lubrication as specified by the gearbox ma-nufacturer should be used. Lubrications contai-ning molybdenum disulphide must not beused.
Application as
➧ Backstop
FeaturesInternal Freewheels RCD are sprag freewheelswithout bearing support. They are specificallydesigned as interchange backstops for Dodge®shaft mounted reducers.
The freewheel is incorporated into the custo-mer’s housing, allowing for a compact, spacesaving solution.
Internal Freewheels RCDspecifically designed as an interchange backstop for Dodge® TXT shaft mounted reducerswith sprags
Interchange Chart
Dodge® is a registered trademark of Baldor Electric Company.
Interchange Chart for Marland, Formsprag, Morse®/EPT and Renold with RINGSPANN Freewheels
*Grease filled with labyrith seals • ** Interchange is dependent on the maximum required bore of the RINGSPANN FRHM. See Page 19. • Morse is a registered trademark of Borg Warner.
Interchange Chart FRHD Series - for Formsprag, Marland, Falk, Stephens Adamson and Morse®
The above is a functional interchange reference, please verify dimensional interchange details. • Morse® is a registered trademark of Borg Warner
36
Questionnaire for selecting RINGSPANN Backstops
Please photocopy or use the PDF-File from our website!
Company:Address:
Name: Department:
Date:Inquiry Ref.:Phone:Fax:E-mail:
1.1 Type of machine:
In the case of conveyor belts: Angle of the steepest segment °Multiple-drive? o Yes o NoIf yes, number of drives
1.2 Backstop location: o on the gearbox o on the motoro elsewhere:
1.3 Arrangement: o on a shaft end
Diameter: inch Length: inch
o on a through shaft Diameter: inch
o on a pulley o on a sprocket o elsewhere:
1.4 If possible, please include specification,data sheet, sketch or drawing with con-nection dimensions.
1. Where will the Backstop be used?
2.1 Speed at the backstop location (backstopshaft) nsp = rpmWould it be possible to arrange the back-stop on a high speed shaft? (higher speed = lower torque = smaller backstop)If neccesary please give further details onthe drawing.
2.2 Nominal power of motorP0 = hp
2.3 Must the backstop also absorb the peak torque that occurs if the drive motor isstarted in the locking direction of thebackstop (incorrectly poled drive motor)?If yes, the backstop must be substantiallyoversized. o Yes o No
2.4 Maximum backdriving torqueMmax = lb-ft
2.5 Lifting capacity of the conveyor system PL = hp
2.6 Number of daily stops: ______________2.7 Daily operating time: hours
2. Operating data
3.1 o Open, outsideo Open, in a closed roomo In the machine housing o Lubrication by means of oil bath or oil mist in the machine housing o Connection to the central lubrication system is possible
Name of lubricant: Kinematic viscosity: cst °F °C
3.2 Should the backstop be releasable? o No o Yes, in an emergencyo Yes, frequently
3.3 Ambient temperature on the backstop:from °F to °F
3.4 Other (e.g. accessibility, dust susceptibilityand other environmental influences thatcould be of significance):
3.5 Are there any elastic elements/compo-nents located between the backstop andthe installation that is to be backstopped(elastic couplings generate con si der ablepeak torques at the moment of stopping)?o Yes o No
3. Installation conditions
Pieces Pieces/month Pieces/year
4. Estimated requirements
o Specifications o Data sheet o Sketch/drawing
5. Enclosures
37
Questionnaire for selecting RINGSPANN Overrunning Clutches
Please photocopy or use the PDF-File from our website!
Company:Address:
Name: Department:
Date:Inquiry Ref.:Phone:Fax:E-mail:
1.1 Type of machine, machine group or installation, in which the overrunningclutch will be used:
1.2 Arrangement of the overrunning clutch (if possible, please include specification,data sheet, sketch or drawing with connection dimensions).
1. Where will the Overrunning Clutch be used?
2.1 In driving operation the drive of the over-running clutch will be carried out by:o Asynchronous motor o direct start-up o -D-start-upo Other electric motor Type: o Combustion engine Type: Number of cylinders: o Turbineo Other (please explain in more detail):
2.2 To be transmitted in driving operation:Power: hp orTorque: lb-ft
2.3 Maximum torque lb-ft(Important for drives that develop theirmaximum torque below their nominalspeed.)
2.4 Speed1. in driving operation: from rpm to rpm 2. in freewheeling operation: (when overrunning clutch is disengaged) Primary part (driver) from rpm to rpm Secondary part (driven machine) from rpm to rpm
2.5 Should the overrunning clutch be combined with a shaft coupling?o with an elastic couplingo with a torsionally stiff couplingo
2.6 If, upon start up, larger masses are to beaccelerated:Moment of inertia: J = lb-ft2
Speed of mass: n = rpm2.7 Torque fluctuations/torsional vibrations
during driving operation generate the following torque limitso Minimum torque Mmin = lb-fto Maximum torque Mmax = lb-fto Min-/Max.-torque is not known
3.1 o Open, outsideo Open, in a closed roomo in the machine housing o Lubrication by means of oil bath or oil mist in the machine housing o Connection to the central lubrication system is possible Name of lubricant: Kinematic viscosity cst °F °C
3.2 Ambient temperature on the freewheel:from °F to °F
3.3 Other (e.g. accessibility, dust susceptibilityand other environmental influences thatcould be of significance):
Pieces (one-off)Pieces/monthPieces/year
5. Enclosureso Specifications o Data sheet o Sketch/drawing
Questionnaire for selecting RINGSPANN Indexing Freewheels
Company:Address:
Name: Department:
Date:Inquiry Ref.:Phone:Fax:E-mail:
1.1 Type of machine, machine group or installation, in which the indexingfreewheel will be used:
1.2 Arrangement of the indexing freewheel(if possible, please include specification,data sheet, sketch or drawing with con-nection dimensions).
1. Where will the Indexing Freewheel be used?
2.1 Index angle of the indexing freewheel:from ° to °
2.2 Number of actuations (indexes) per minute:from /min to /min
2.3 The back and forth movement is madeby o freewheel outer ringo freewheel inner ringo
2.4 The back and forth movement is generated byo bell cranko hydraulic cylindero pneumatic cylindero cam disk or plateo other (please explain in more detail):
2.5 Proposed shaft dimensions:Diameter inchLength inch
2.6 Normal torque: M = lb-ftMaximum torque: Mmax = lb-ft(including peaks)
2.7 Daily operating time: hours
2. Operating data
3.1 o Open, outsideo Open, in a closed roomo in the machine housing o Lubrication by means of oil bath or oil mist in the machine housing o Connection to the central lubrication system is possible Name of lubricant: Kinematic viscosity: cst °F °C
3.2 Ambient temperature on freewheel:from °F to °F
3.3 Other (e.g. accessibility, dust susceptibilityand other environmental influences thatcould be of significance):
3. Installation conditions
Pieces Pieces/month Pieces/year
4. Estimated requirement
o Specifications o Data sheet o Sketch/drawing
5. Enclosures
Please photocopy or use the PDF-File from our website!