KTR Pumpenantriebe En

7/29/2019 KTR Pumpenantriebe En

1/44www.ktr.com Fo

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um

pD

rive

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For advanceddrive

technology

KTR Couplings forPumps and Compressors

KTR features:

innovative quality products

available from stock

short assembly times

optimal cost-performance ratio

worldwide net of distribution


2/442

For advanceddrive

technology

KTR A competent partner!

Quality and Safety

KTR is a worldwide market leader in the range of flexible couplings. With experiences of more than 45 years inpower transmission we place trends in the development of coupling technology. In the meantime many of ourproducts have become an industrial standard and our engineers continuously work on new solutions we arelooking forward to working on your application! Every day more than 800 shipments leave our new modernlogistics center.

Rightly KTR is proud on the fact that the products from its own development can be checked on the test ben-ches in the own company under almost realistic conditions of use from 1 to 100,000 Nm. Furthermore, we areable to compare the calculated data with the results of our theory from our own FEM calculation. Especially forpumps and compressors the theoretic view of the torsional vibrations is of utmost importance. For many yearswe have used a special software ensuring the safe selection of the couplings.

KTR was one of the first companies acting in the range of power transmission that reached a DIN ISO 9001Certification in 1993. In the meantime the Certification has been updated according to ISO 9000-2000. Thisdoes not only refer to the quality of the coupling, but also to the quality and the safety of the necessary prepara-tions from the correct product selection to the reliable handling of orders. KTR actively works in different associ-ations and standard committees. Our competence in these ranges is unquestioned.The latest introduction ofthe ATEX Standard in Europe is only one aspect. Additionally, we have further type examination certificates ofdifferent institutes and our couplings meet the requirements according to API 610, 671 and 685.

Reduce the danger to ignite an explosion to a harmless extent!

The product standard ATEX 95 (in the past ATEX 100a) of the European Parliament and the Council for adjust-ment of legal instructions of the member states for machines and protection systems for the purposive use in

hazardous areas stipulates the rules for the marketing of products that are used in hazardous areas or inclu-ding hazardous areas.

Please find more information on our homepage www.ktr.com or ask for our company catalogue or ourCD-ROM 5.5.


3/443

610/671

610

685

API

KTR Couplings forPumps and Compressors

For advanceddrive

technology

torsionally flexible pin & bush coupling maintenance-free, damping vibrations to be assembled radially fail-safe max. shaft diameter of 370 mm torque range up to TKN = 291,000 Nm

BoWex-ELASTIC

highly flexible curved-toothflange coupling

highly flexible curved-tooth flange coupling elastomer from natural rubber connections according to SAE 61/2 21 max. shaft diameter of 150 mm torque range up to TKN = 9,000 Nm

ROTEX

torsionally flexiblecoupling

POLY

torsionally flexiblecoupling not failsafe

REVOLEX KX

torsionally flexiblepin & bush coupling

POLY-NORM

compact, torsionallyflexible shaft coupling

RADEX-Nsteel lamina coupling

RIGIFLEX-N

steel lamina coupling

MINEX-S

permanent magneticsynchronous coupling

Features

Couplings

torsionally flexible jaw-type coupling failsafe axial plug-in vibration-damping/noise-reducing overall metal-cutting max. shaft diameter of 200 mm torque range up to TKN = 35,000 Nm

big displacements, high restoring forces

increasing the overall service life of all adjacentcomponents

standard spacers up to 250 mm from stock max. shaft diameter of 160 mm torque range up to TKN = 14,300 Nm

torsionally flexible jaw-type coupling for shortshaft distances

failsafe, axial plug-in with ATEX marking available from stock vibration-damping/noise-reducing max. shaft diameter of 125 mm torque range up to TKN = 5,500 Nm

steel lamina coupling spacers up to drop-out center length of 6 m temperature resistance up to 280 C max. shaft diameter of 220 mm torque range up to TKN = 50,000 Nm

steel lamina coupling spacers up to drop-out center length of 6 m temperature resistance up to 280 C max. shaft diameter of 160 mm torque range up to TKN = 13,000 Nm

permanent magnetic synchronous coupling contactless torque transmission hermetic separation of drive and driven side environment-friendly and process-safe maintenance-free temperature resistance up to 300 C torque range up to TKN = 530 Nm

In the aforementioned table you can find the right coupling for each application.

Magneticallycou

pled

pumps

Centrifugalpump

sfor

dieselengines

Centrifugalpump

s

Mobilesrewcom

pressors

Pistoncompress

ors/

turbocompresso

rs

Stationaryscrew

compressors

Rootsvacuumpu

mps

Slidevanerotary

vacuum

pumps


4/444

HubSpacer

Dowel screw (combinationof frictional engagementand positive locking)

Laminae packingwith screws

Laminae set

Safety catch

Special bolts

RIGIFLEX-N / RADEX-NSteel lamina couplingBacklash-free, torsionally rigid and maintenance-free couplings

For advanceddrive

technology

RIGIFLEX-N/RADEX-N couplings are backlash-free, torsionally stiffand maintenance-free all-steel couplings. The laminae which are ex-tremely stiff in torsional direction made of stainless spring steel areable to compensate for high misalignments with low restoring forces.

Due to the all-steel design both coupling systems can be used ondrives with temperatures up to 280 C.

Both couplings were developed specifically for pump drives. Bothtypes are in accordance with the standards of API 610 andRIGIFLEX-N optionally to the standards of API 671.

FEM-optimized laminae design

The steel lamina sets from stainless spring steel were developed onthe basis of FEM calculations.Taking into account the necessaryability for displacement of the coupling, the optimum design regardingtorque transmission and torsional stiffness was aimed at. The fittedshape of the steel laminae on the outside diameter is the result of thisoptimisation calculation. This type of laminae is used for both couplingsystems.

For RADEX-N the laminae are combined by pins and assembled aslamina sets. Subject to improvement on the design of RADEX-Ncomponents the laminae are pre-stressed artificially.This processallows for an increase of torsional stiffness of approx. 30 % and at thesame time prevents the problem of axial vibrations on the spacer.

With RIGIFLEX-N the laminae are connected to the hubs or flanges,respectively, by positive-locking set screws with no backlash at all.

The torques, displacements and stiffness can be varied by the numberof the layer of individual laminae.

Moreover, most important for the development of RIGIFLEX-N was toadhere to the standards of API 610 and 671 by securing the spacer bymeans of a safety catch.

In case that a lamina fails the spacer remains inside the coupling.

In general the spacer is supplied with a pre-assembled lamina set by

the manufacturer.

Explosion protection use

RIGIFLEX-N and RADEX-N couplings are suitable for the use indrives in hazardous areas. The couplings are certified according toEC Standard 94/9/EC (ATEX 95) and belong to category 2G/2D, areconfirmed and thus suitable for the use in hazardous areas of zone

G1, G2, D21 and D22.Further details are shown in the chapter about ATEX 95.


5/445

TKN TK max. TKW d1/d2 max. D DA l1/l2 l3 G t E1 E 1) Mxl TA

65 450 900 225 65 100 126 62 12 M8 20 10 100 140 180 - - M6x20 14

75 940 1880 470 75 105 138 62 12 M8 20 10 100 140 180 - - M8x20 35

85 1700 3400 850 85 120 156 72 15 M10 20 12 - 140 180 200 250 M8x25 35

110 2700 5400 1350 110 152 191 87 18 M10 25 12 - 140 180 200 250 M10x30 69

120 4500 9000 2250 120 165 213 102 20 M12 25 12 - - 180 200 250 M12x30 120140 9000 18000 4500 140 200 265 126 25 M12 30 15 - - - 200 250 M16x40 295

160 13000 26000 6500 160 230 305 145 31 M12 30 15 - - - - 250 M16x50 295

RIGIFLEX-N

RIGIFLEX-N Steel lamina coupling

Type A API 610/671

For advanceddrive

technology

Torque[Nm]Size

Finishbore

Dimensions [mm]Cyl. screws

DIN EN ISO 4762

Type A

Series for pump drives

Coupling in accordance with API 610, API 671optionally.

Spacers are supplied assembled by the manufacturer

Finish bore according to ISO fit H7, feather keyaccording to DIN 6885 sheet 1 - JS9

High balancing quality due to accurate production(AGMA class 9)

Approved according to EC Standard 94/9/EC(Explosion Certificate ATEX 95)

1) Other shaft distances available on request

For selection of coupling see page 132/133 (in the company catalogue)

Mounting instructions KTR standard 47410 under www.ktr.com.

A

Type

d2 120 mm

Bore

d1 100 mm

Bore

200

Shaft distancedimension E

RIGIFLEX-N 120

Coupling size

Order form:


6/446

TKN TK max. TKW

E=100 E=140 E=180 E=200 E=250

65 450 900 225 0,7 1,5 0,75 1,23 1,72 - -

75 940 1880 470 0,7 1,8 0,73 1,22 1,71 - -

85 1700 3400 850 0,7 2,1 - 1,14 1,62 1,87 2,48

110 2700 5400 1350 0,7 2,4 - 1,05 1,54 1,78 2,39

120 4500 9000 2250 0,7 2,6 - 1,00 1,49 1,73 2,35

140 9000 18000 4500 0,7 3,3 - - - 1,55 2,16

160 13000 26000 6500 0,7 3,8 - - - - 1,99

[kg] [kgm2] E=100 E=140 E=180 E=200 E=250 E=100 E=140 E=180 E=200 E=250

65 2,517 0,00491 3,925 4,187 4,448 - - 0,00811 0,00830 0,00848 - -

75 2,424 0,00566 4,482 4,842 5,202 - - 0,01143 0,01191 0,01239 - -

85 3,742 0,01135 - 7,154 7,548 7,746 8,239 - 0,02364 0,02427 0,02459 0,02538

1106,711 0,03222 - 12,492 13,478 13,972 15,205 - 0,06291 0,06540 0,06665 0,06976

120 9,181 0,05238 - - 17,324 17,842 19,137 - - 0,10314 0,10458 0,10818

140 18,211 0,15175 - - - 32,530 34,325 - - - 0,31901 0,32845

160 28,777 0,31927 - - - - 51,780 - - - - 0,67511

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7

65 1,50 1,29 1,07 0,86 0,64 0,43 0,22 0,00

75 1,80 1,54 1,29 1,03 0,77 0,52 0,26 0,00

85 2,10 1,80 1,50 1,20 0,90 0,60 0,30 0,00

110 2,40 2,06 1,71 1,37 1,03 0,69 0,34 0,00

120 2,60 2,23 1,86 1,48 1,11 0,74 0,37 0,00

140 3,30 2,83 2,36 1,88 1,41 0,94 0,47 0,00

160 3,80 3,26 2,71 2,17 1,63 1,09 0,54 0,00

ca[N/mm]

cw[Nm/rad] E=100 E=140 E=180 E=200 E=250

65 8000 136 860 360000 146022 129938 117046 - -

75 6700 340 1500 720000 306145 278381 255234 - -

85 5900 385 2300 1062000 - 406641 369429 353265 318433

110 4750 390 2800 1460000 - 664284 637587 625028 595693

120 4300 600 4100 4500000 - 1798018 1637553 1567602 1416348

140 3400 580 6400 5600000 - - - 2363340 2226630

160 3000 620 9800 6850000 - - - - 2654894

SizeMax.speedunbalanced

[min-1] 2)

Size

Weights [kg] / Mass moments of inertia x 10-3 [kgm2]

Hub(max. bore)

Spacer complete[kg]

Spacer complete[kgm2]


Technical data

For advanceddrive

technology

2) Higher speeds balanced on requestca = axial stiffness cw = angular stiffness ct = torsion spring stiffness

Laminaect

[Nm/rad]

ct for mounting length [Nm/rad]

Stiffness

Size

Permissible angular displacement

Permissible axial displacement

1) Angular displacement for each lamina setIf axial, angular or radial shaft displacement arise in parallel please note the following table:

Torque [Nm] Permissible misalignments

Angular KW 1)

[]

Axial KA

[mm]

Radial KR [mm]

Weights and mass moments of inertia

Torques, misalignments

Permissible speeds, stiffness

Size


7/447

RIGIFLEX-N

Clamping ring hub

Clamping ring

Slidingsleeve

Clampingscrews

Integrated overload protection

A clamping ring hub with integrated sliding sleeve isused. If too high torques occur in the drive train, theclamping ring hub slips through on the shaft with thesliding sleeve. The shaft is not damaged; the sleeveserves as wearing part that must be exchanged ifnecessary.

The slipping torque can be adjusted through thetightening torque of the clamping screws.

Pulling-off screws

RADEX-N with an electrically insulatingspacer from GRP.

RADEX-N with spacer from CFRP to bridgelager shaft distances with a very favourable

weight ratio.


Other designs

For advanceddrive

technology

Assembly

The spacers of RIGIFLEX-N have with drawing screws, serving fordisassembly and assembly. The screws make sure that the adapter

flanges are drawn in the direction of the spacer and consequently slipoff the centering in order to assure a radial disassembly of the spacerincluding the laminae sets.

NON SPARKING

Basically the NON SPARKING couplings of KTR are provided witha safety stop as described in the API 671 standard. In this way it isassured that sparks cannot be produced by rotating coupling parts,since the spacer is kept inside the coupling in case that the laminae

fail.Moreover, the special materials of the parts that are stressed in casethat the laminae fail avoid the production of impact or friction sparks.

The laminae and pins of RIGIFLEX-N are made from MONEL.The spacers of NON SPARKING designs are basically made fromstainless materials, since they are considered to be generallyrecognized as safe in combination with copper alloys.

Due to the special materials used the transmittable torques arereduced compared to the standard series.


8/448

dmax. d2 max. D DA EStandard1)

100 140 180 250l1/ l2

42

50

60

70

80

85

90

105

115

135

160

180

190

220

42

50

60

70

80

85

90

105

115

135

160

180

190

220

TKW

60

110

230

270

500

800

1500

1700

3000

4000

5000

8000

12000

16000

TK max.

360

660

1380

2200

3000

4800

9000

10200

18000

24000

30000

50000

70000

100000

TKN

180

330

690

1100

1500

2400

4500

5100

9000

12000

15000

25000

35000

50000

58

65

80

90

105

115

120

130

150

68

78

88

102

117

123

132

147

163

184

213

242

265

305

104

126

138

156

179

191

210

225

265

305

340

390

440

495

45

55

55

65

75

80

80

90

100

135

160

180

190

220

1,0

1,0

1,3

1,3

1,3

1,3

1,0

1,0

1,0

1,0

0,7

0,7

0,7

0,7

2,8

3,2

2,0

2,2

2,6

2,3

2,0

2,4

2,8

3,5

5,5

6,0

7,0

8,0

Axial[mm]

Torques [Nm]

RADEX-N Steel lamina couplingStandard line NANA 3

for pump drives according to API 610

For advanceddrive

technology

1) Other E-dimensions available on request.

Line NANA 3 for pump drives Coupling according to API 610 High balancing quality due to precise manufacture

(AGMA class 9)

Device to secure the spacer if the lamina breaks(see detail X) Also available with large hub for larger bore diameters Finish bore according to ISO fit H7,

feather keyway according to DIN 6885 sheet 1 - JS9 Approved according to EC Standard 94/9/EC

(Explosion Certificate ATEX 95)

Angle eachlamina []

SizeDimensions [mm] Perm.displacements

Standardhub

Standardhub

Largehub

Securing device of the spacer:The laminae packings have a sleeve in order tosecure the spacer if the lamina breaks.

Order form: RADEX-N 60

Coupling size

NANA 3

Type

50

Bore d1

60

Bore d2

140

Shaft distancedimension

Acc. to

customers request

Detail X


9/449

42

5060

70

80

85

90

105

115

135

160

180

190

220

10000 0,282

8000 0,5016700 0,56

5900 0,90

5100 1,14

4750 1,52

4300 1,94

4000 2,54

3400 3,48

3000 6,85

2800 32,2

2400 42,3

2150 76,8

1950 98,0

42

50

60

70

80

85

90

105

115

135

160

180

190

220

1,076

1,752

1,878

2,778

4,120

5,115

6,196

7,601

11,951

18,900

27,776

39,765

57,367

82,152

[kg] [kgm2] [kg] [kgm2] 100 140 180 250 100 140 180 250

0,00123

0,00291

0,00378

0,00714

0,0134

0,0195

0,0282

0,0414

0,0899

0,1866

0,3480

0,6283

1,1301

2,0228

0,248

0,462

0,395

0,432

0,719

1,011

2,309

2,194

3,931

7,265

7,938

12,869

17,584

22,158

0,0002

0,0003

0,0006

0,0009

0,002

0,003

0,008

0,01

0,02

0,11

0,15

0,32

0,53

0,87

1,109

1,469

2,034

2,503

3,419

2,106

1,678

2,421

2,945

3,892

4,947

2,432

1,886

2,807

3,387

4,359

5,517

4,815

4,160

5,188

6,516

7,850

12,988

19,988

0,00169

0,00427

0,00738

0,01218

0,01974

0,00446

0,00464

0,00831

0,01357

0,02144

0,03268

0,00490

0,00501

0,00923

0,01495

0,02312

0,03504

0,00938

0,01738

0,02611

0,03916

0,05410

0,12735

0,25154

42 4 x M8 35

50 4 x M10 69

60 6 x M8 33

70 6 x M10 65

80 6 x M10 6585 6 x M12 115

90 6 x M16 280

105 6 x M16 280

115 6 x M20 550

135 6 x M24 900

160 6 x M24 900

180 6 x M30 1850

190 6 x M33 2450

220 6 x M36 3150

RADEX-N

Hub(max. bore)

Lamina packingSpacer

[kg]Spacer[kgm2]

Explosion protection use

RADEX-N couplings are suitable for the use in drives in hazardous areas.The couplings are certified accor-

ding to EC Standard 94/9/EC (ATEX 95) and belong to category 2G/2D, are confirmed and thus suitable for theuse in hazardous areas of zone G1, G2, D21 and D22.Clamping ring hubs (clamping hub without shoulder bolt only for category 3) used in hazardous areas must beselected in a way that there is a safety of s = 2 from the peak torque of the unit including all operating parame-ters to the torque of frictional engagement and to the nominal torque of the coupling.Further information about this topic under www.ktr.com.

The following lamina types are distinguishedfor RADEX-N:

Size 42 50(4 hole lamina)



For advanceddrive

technology

RADEX-N Steel lamina coupling

Technical data API 610

Acc. to

customers request

Acc. to

customers request

SizeMax. speed unbalanced [min-1]

(higher speeds balanced on request)Torsion spring rigidity x 106 [Nm/rad]

per laminae set

Permissible speeds, torsional stiffness

Size

Weights [kg] / Mass moments of inertia x 10-3 [kgm2]

Weights and mass moments of inertia

Screw tightening torques of laminae:

Size Screw TA [Nm]


10/4410

TKN

TKW

TK max

Assembly and operating advice

(please see our mounting instructions KTR standard47110 and 47410 see www.ktr.com) For the assembly it is

important to make sure that the laminae sets are assembledfree from distortion in axial direction.The screw tighteningtorques are shown in the mounting instructions.

If the finish bore is machined by the customer, theconcentric and axial running tolerances have to beobserved (see sketch below).

Balancing:

On request of the customer the couplings can be balanced.

For most applications this is not necessary due to theaccurate machining of the coupling.Please consult with KTR for any further questions.

Installation:

RIGIFLEX-N/RADEX-N couplings are designed forhorizontal installation. For vertical installation the spacer

has to be supported (see sketch below).Please contact:

Safety regulations:

The coupling must be selected in a way that the permissiblecoupling load is not exceeded in any operating condition.For that purpose a comparison between the actual loadswith the permissible coupling characteristics has to beperformed.

The customer must protect rotating parts against unintendedtouch (Safety of Machines DIN EN 292 part 2). Please take

precautions that there is a sufficient coupling protection incase of a fracture of the coupling caused by overload.

Description Code Explanation

Rated torque ofcoupling

Torque which can be trans-mitted continuously over theentire speed range of thecoupling.

Vibratory torqueof coupling

Torque amplitude of thepermissible periodic torquefluctuation with a frequencyof 10 Hz and a basic load ofTKN or dynamic load up toTKN.

Description Code Explanation

Maximum torqueof coupling

Torque which can be trans-mitted during the entire life ofthe coupling 105 times asspike load or 5 x 104 times asalternating load.


For advanceddrive

technology

Explanation of the coupling torques


11/4411

SB

2,5

1,5

Kr = g tan (Kw)

TKN TN Sb St SR

TKmax TN A1 St SR

TKmax (TN + TS)

TKN TN Sb St SR

TKmax TSR

TKW TW

RADEX-N

Guidelines for operating factor SBApplication

Piston pumps

Centrifugal pumps

The nominal torque TKN of the coupling is:

The shock torque TKmax of the coupling is:

TN = Torque of the machine

SB = Operating factor

SR = Factor of direction= 1,00 same torque direction= 1,70 changing torque direction

St = Operating temperatureTemperature factor

C - 30 0 + 150 + 200 + 230 + 270Factor 1,00 1,00 1,00 1,10 1,25 1,43

2.2 Loading by torque shocks

The permissible maximum torque TKmax of the couplingmust be at least as big as the sum of the peak torque TSand the rated torque TN of the machine.This is valid incase that the rated torque of the machine is super-imposed by a shock (e. g. starting of the engine). Fordrives with A. C. motors and large masses on the loadside we would recommend calculations by our simula-tion programme (please consult with our EngineeringDepartment).

2. Selection of the coupling size

Drives without periodic torsional vibrations

For example centrifugal pumps, fans, screwcompressors, etc.The coupling selection requires thatthe rated torque TKN and the maximum torque TKmax arereviewed.

2.1 Loading by rated torque

Taking into account the operating factor SB thepermissible rated speed must be at least as large asthe rated torque TN of the machine.

3. Drives with periodic torsional vibrations

For drives subject to dangerous torsional vibrations(e. g. diesel engines, piston compressors, piston pumps,generators, etc.) it is necessary to perform a torsionalvibration calculation (please consult with our Enginee-ring Department).

3.1 Loading by rated torque

Taking into account the operating factor SB the permissi-ble rated torque must be at least as big as the ratedtorque TN of the machine.

3.2 Passing through resonance

The peak torque TSR arising while passing throughresonance must not exceed the permissible maximumtorque of the coupling TKmax.

3.3 Loading by vibratory torque

The permissible vibratory torque of the coupling TKWmust not be exceeded by the maximum periodicvibratory torque of the machine TW.


For advanceddrive

technology

1. Permissible displacements:

Ka: Permissible axial displacementKw: Permissible angular displacementKr: Permissible radial displacement

The steel lamina couplings are selected in a way thatthe maximum permissible angular excursion Kw maybe compensated by every lamina set. Consequently themaximum permissible angular excursion of two shaftscombined with each other is 2 Kw. The maximum an-gular excursion for each lamina set is shown in the table"Technical capacity utilization".

Angular displacement

The permissible radial displacement Kr with distanceg of the coupling elements is

Radial displacement

In the table Technical data (RADEX-N page 9 andRIGIFLEX-N page 6) you can see the max. permissibleradial displacements Kr for every size and type basedon the given standard lengths of the flange hollow shaftas well as the permissible angular displacement Kw ofthe coupling elements.The max. permissible axial displacements Ka forevery size and type are also mentioned in the tableTechnical data.The figures of the permissible displacements

indicated are dependent on each other!With an increasing axial displacement Ka thepermissible angular displacement Kw decreasesand thus the radial displacement Kr. (See ourmounting instructions www.ktr.com).


12/4412

SA 22/4

SA 34/10

SA 46/6

SA 60/8

SB 60/8

SA 22/4

SA 34/10

SA 46/6

SA 60/8

SB 60/8

0,15

1

3

7

14

5

5

8

5

5

5

9

9

12

9

12

16

11

14

19

28

38

22 35

50 94,5 12,0

M5 59 75 89,5 5,5 8

20

20

28

18

22

30

38

53

69,5

35

38,5

53

66

93

8,5

10,5

16

19

15

5,0

5,5

9,0

M4

M4

M5

M6

M8

23,5

36,0

48,5

61,1

61,6

24,8

37,3

49,4

63,2

63,2

42

46

68,5

80

105

42

49,5

69,5

81,3

108

20

22

33

36

56

2,0

2,0

6,5

2,2

0,0

2,0

5,5

7,0

3,5

3,5

M3

M3

M4

21,5

34

46

38

46

66

46

55

78

4,5

4,5

4,5

8

4

8

DA1 DA3 LA1 LA2 S GA DS6 DA5

DI1 LI1min. max.

GI DS1 DS2 DS3 DS4 ZSSI

min. max. min. max.

min. max.

SA = SI + S

NdFeB tmax. = 150 CSm2Co17 tmax. = 300 C

MINEX-SPermanent magnetic coupling

Sizes SA 22/4 to SB 60/8 API 685

For advanceddrive

technology

Contactless torque transmission

Hermetic separation of drive and driven side

Available from stock with pilot bored internal rotor andunbored external rotor

Finish bore possible to ISO H7,feather keyway to DIN 6885 sheet 1 - JS9

Standard containment shroud made from stainless steel1.4571


Mounting instructions available at www.ktr.com

Design di 20 mm

Finish bore H7; feather key-way DIN 6885 sheet 1 [JS9]

Finish bore H7; feather key-way DIN 6885 sheet 1 [JS9]

da 24 mmMINEX SA 60/8

Coupling size

Order form:

1) Bore H7 with feather keyway DIN 6885 sheet 1 [JS9]

total

Ltotal

Dimensions [mm]

Dimensions [mm]

Finish bore 1) di

Finish bore 1) da

Internal rotor

External rotor

Containment shroud

General

TKmax.[Nm]

in case of~ 20 C

MINEX-S

size

MINEX-Ssize

Internalrotor

Containmentshroud

Externalrotor


13/4413

SA 75/10SB 75/10SC 75/10SA 110/16SB 110/16SC 110/16SB 135/20SC 135/20SD 135/20SC 165/24SD 165/24SE 165/24SD 200/30SE 200/30

SA 75/10SB 75/10SC 75/10SA 110/16SB 110/16SC 110/16SB 135/20SC 135/20SD 135/20SC 165/24SD 165/24SE 165/24SD 200/30

SE 200/30

4161

83,54161817090

11090

110130

102440256095

100145200210280370410530

12

90

126

150

180

100

135

160

188

110

145

170

198

M6

M6

M6

M6

212 222 232 M6

74,6

111,5

136,5

167,0

198

76,2

112,8

138,2

168,5

199,5

102

115

139

170

180

12,5

19,0

18,5

14,5

22,018,5

21,0

26,0130

14

20

24

28

55

70

90

40

72

90

110

4

4

4

6

M6

M8

M10

M12

75

110

135

163,5

100

133

158

192

118

153

178

218

9

9

9

11

8

12

16

12

38 90 130 135 18,06 M16 200 252 278 11 12

39,55880456585658511085110130

46,526,56,0

51,031,011,046,526,57,0

46,524,014,0

DA1 DA2 DA3 DA4 LA1 S DS6 DA5

DI1 LI1min. max.

GI DS1 DS2 DS3 DS4 ZSSImin. max.

SA = SI + S

NdFeB tmax. = 150 CSm2Co17 tmax. = 300 C

MINEX-S

MINEX-SPermanent magnetic coupling

Sizes SA 75/10 to SE 200/30 API 685

For advanceddrive

technology

Ltotal

total

Contactless torque transmission

Hermetic separation of drive and driven side

Two-part external rotor with flange hub that must beseparately screwed, customer-specific variations are

possible Available from stock with pilot bored internal rotor

Finish bore possible to ISO H7,feather keyway to DIN 6885 sheet 1 - JS9

Containment shroud also available from stainless steel orHastelloy


Design di 20 mm

Finish bore H7; featherkeyway DIN 6885 sheet 1 [JS9]

da 24 mm Containment shroud type

Stainless steel 1.4571or Hastelloy

MINEX SB 75/10

Coupling size

Order form:

1) Bore H7 with feather keyway DIN 6885 sheet 1 [JS9]Futher sizes on request

Dimensions [mm]

Dimensions [mm]

Finish bore 1) di

Internal rotor

External rotor

Containment shroud

General

TKmax.

[Nm]in case of~ 20 C

MINEX-S

size

MINEX-S

size

Internalrotor

Containmentshroud

Externalrotor

Optionalflange hub


14/4414

=

92 Sh A

95/98 Sh A

64 Sh D-F

94 Sh A-T

64 Sh D-H

PA

PEEK PEEK

spider 95/98 Sh A optimum combination with hub

material EN-GJL-250 (GG 25);steel; EN-GJS-400-15 (GGG 40)

transmitting high torques yetdamping vibrations

temperature range from- 30 C to + 90 C

standard spider 92 Sh A suitable for all hub materials for all applications in general

engineering/hydraulics good dynamic properties temperature range from

- 40 C to + 90 C

spider 64 Sh D-F optimum combination with hub

material steel;EN-GJS-400-15 (GGG 40)

transmitting twice the torque ofspider 92 Sh A

small twisting angle spider suitable for critical drives resistant to hydrolysis

-polyamide

green hytrel

blue with yellowtooth flanks polyurethane

- 20 to +130 1) - 30 to +150 1)

light grey

Small twisting angles and high torsion spring stiffness, 1)high ambient temperature, good resistance to chemicals

Drives with higher loads, small twisting angles -torsionally rigid, high ambient temperatures

I.C.-engines, for high dynamic load,high air moisture/resistant to hydrolysis

Small twisting angles and high torsion spring stiffness,very high ambient temperature, good resistance to chemicals,resistant to hydrolysis

up to +180(ATEX release upto a max.+160)

up to +250

- 50 to +110 - 40 to +120

- 50 to +110 - 50 to +120

Typicalapplications Continuous

temperatureMax. temperature

short time

Perm. temperature range (C)Spidertype

hardness(Shore)

Identification

colourMaterial

Spiders for special applications on request for:

natural whitewith greentooth flanks

polyurethane

red polyurethane

yellow polyurethane

- 30 to +110 - 30 to +130

- 30 to +90 - 40 to +120

- 40 to +90 - 50 to +120

Continuoustemperature Max. temperatureshort time

size 14 180

size 14 180

size 14 180

I.C. - engines high air moisture, resistant to hydrolysis displacement of critical speeds

good torque transmissionwith good damping properties

for all applications in general engineeringand hydraulics

Standard applications with average elasticity

Typical

applications

Available for

coupling size

Perm. temperature range (C)Spidertype

hardness(Shore)

Identification

colour Material

Standard spiders

ROTEX Torsionally flexible couplings

Description of coupling/Spider types

For advanceddrive

technology

1) Different properties depending on compound

period

Comparison of loads Twisting angle Damping

Standard spidertooth flanks crowned

GS spiderstooth flanks rectangular, with web

torqueT

w/o damping

with dampingtwisting angle

Twisting angle

Dampings- [AD]Flex.deformation [Ae]operation

torqueT

dyn.charact.curve CTdyn.

operating point

stat. charact.curveCTstat.

torqueT

Spider types Materials, physics, properties

Spiders

An operating temperature range of - 40 to + 100 C ensures perfect operation. Tran-sient temperature peaks up to + 120 C do not cause any damage on the coupling.Continuous improvement of materials has resulted in a standard spider of 92 Shore Awhich offers various advantages over usual polyurethane materials. For higher torquesit is also possible to make use of a spider 95/98 Shore A or 64 Shore D-F.

The spiders are extremely resistant to wear, oil, ozone and ageing. In addition, they areresistant to hydrolysis (ideal for tropical climates).

The high internal damping protects the drive against dynamic overload.

ROTEX - couplings are characterized by small dimensions, low weight and low massmoments of inertia yet transmit high torques. Running quality and service life of thecoupling are improved by accurate all-over machining.

Their application is ideal for transmitting torque while damping torsional vibrations and

absorbing shocks produced by the uneven operation of certain prime movers.


15/4415

ROTEX

30 C+40 C +60 C +80 C

+30 C

St 1,0 1,2 1,4 1,8

TKN TN St

TKN TN St

TK max TS St

TKW TW St

TK max TS Sz St + TN St

PAN/LN [kW]TN [Nm] = 9550 n [1/min]

JL JAMA = ML = JA + JL JA + JLPKW PW

TKN

TK max

TKW

PKW

TN

TS

TAS

TLS

TW

PW

JA

JL

MA

MLJL JA

MA = ML =JA + JL JA + JL

Description Symbol Definition or explanation Description Symbol Definition or explanation

Rated torqueof coupling

Torque that can continuously be transmittedover the entire permissible speed range

Maximum torqueof coupling

Torque that can be transmitted as dynamicload 105 times or 5 x 104 as vibratory load,respectively, during the entire operating lifeof the coupling

Vibratory torqueof coupling

Torque amplitude of the permissible perio-dical torque fluctuation with a frequency of

10 Hz and a basic load of TKN or dynamicload up to TKN, respectively

Damping powerof coupling

Permissible damping power with an ambienttemperature of + 30 C.

Rated torqueof coupling

Stationary rated torque on the coupling

Peak torqueof the machine

Peak torque on the coupling

Peak torqueon the driving side

Peak torque with torque shock on the drivingside, e.g. breakdown torque of the electricmotor

Peak torqueof load side

Peak torque with torque shock on load side,e. g. braking

Vibratory torqueof machine

Amplitude of the vibratory torque effectiveon the coupling

Damping power ofthe machine

Damping power which is effective on thecoupling due to the load produced by thevibratory torque

Moment of inertia

of driving side

Total of moments of inertia existing on the

driving or load side referring to the couplingspeedMoment of inertiaof load side

Rotational inertiacoefficient of drivingside

Factor taking into account the massdistribution with shocks and vibrationsproduced on the driving or load side

Rotational inertiacoefficient of loadside


Coupling selection

For advanceddrive

technology

SA/SL

gentle shocks 1,5average shocks 1,8

heavy shocks 2,5

starting100 200 400 800

frequency/h

SZ 1,0 1,2 1,4 1,6

Service factor St for temperature Service factor SZ for starting frequency Service factor SA/SL for shocks

Permissible load on feather key of the coupling hub

The shaft-hub-connection has to be verified by the customer.

Permissible surface pressure according to DIN 6892(method C).

Cast iron EN-GJL-250 (GG 25) 225 N/mm2

material nodular iron EN-GJS-400-15 (GGG 40) 225 N/mm2

material steel S355J2G3 (St 52.3) 250 N/mm2

for other steel materials pzul = 0,9 Re02

Drive-sided shockTS = TAS MA SA

Load-sided shockTS = TLS ML SL

The ROTEXcoupling is selected in accordance with DIN 740 part 2.The coupling has to be dimensioned in a way that the permissiblecoupling load is not exceeded in any operating condition. For this purpose the actual loads have to be compared to the permissibleparameters of the coupling.

1.1 Load produced by ratedtorque

Taking into considerationthe ambient temperature,the permissible ratedtorque TKN of the couplinghas to correspond at leastto the rated torque TN ofthe machine.

1.2 Load produced by

torque shocksThe permissible maxi-mum torque of the coup-ling has to correspond atleast to the total of peaktorque TS and the ratedtorque TN of the machine,taking into account theshock frequency Z andthe ambient temperature.

This applies in case if the

2.1 Load produced byrated torque

Taking into account the ambient temperature, the permissiblerated torque TKN of the coupling has to correspond atleast to the rated torque TN of the machine.

2.2 Passing through theresonance range

Taking into account the temperature, the peak torque TSarising when the resonance range is run through must notexceed the maximum torque TKmax of the coupling.

2.3 Load produced by vibratorytorque shocks

Taking into account the ambient temperature, the per-missible vibratory torque TKW of the coupling must not beexceeded by the highestperiodical vibratory torque TWwith operating speed.

For higher operating frequencies f > 10, the heat produced bydamping in the elastomer part is considered as damping po-wer PW.

The permissible damping power PKW of the couplingdepends on the ambient temperature and must not beexceeded by the damping power produced.

rated torque TN of the machine is at the same time subject toshocks.

Knowing the mass distribution, shock direction and shock mode,the peak torque TS can be calculated.

For drives with A. C.-motors with high masses on the load sidewe would recommend to calculate the peak driving torque withthe help of our simulation programme.

1 Drives without periodical torsional vibrations

e. g. centrifugal pumps, fans, screw compressors, etc.The coupling is selected taking into account the rated torquesTKN and maximum torque TK max.

2. Drives with periodical torsional vibrations. For drives sub-

ject to high torsional vibrations, e. g. diesel engines, pistoncompressors, piston pumps, generators, etc., it is necessaryto perform a torsional vibration calculation to ensure a safeoperation. If requested, we perform the torsional vibration cal-culation and the coupling selection in our company. For ne-cessary details please see KTR standard 20004.


16/4416

1 1a2 1 1a2

143) 1a 7,5 12,5 6-16 35 11 13 10 1,5 30 10 30 M4 5 1,5

191

10 17 6-19

66 25 16 12 2 41 1832

20 M5 10 21a 19-24 41

241

35 60 9-24

78 30 18 14 2 56 2740

24 M5 10 21a 22-28 56

281

95 160 10-28

90 35 20 15 2,5 66 3048

28 M8 15 101a 28-38 66

1 12-38 66

38 1a 190 325 405 38-45114 45

24 18 3 80 3878

37M8 15 10

1b 12-45 164 70 62

1 14-42 75

42 1a 265 450 560 42-55126 50

26 20 3 95 4694

40M8 20 10

1b 14-55 176 75 65

1 15-48 8548 1a 310 525 655 48-60

140 5628 21 3,5 105 51

10445

M8 20 10

1b 15-60 188 80 69

1 20-55 98

55 1a 410 685 825 55-70160 65

30 22 4 120 60 11852

M10 20 17

1b 20-70 210 90 120 -

1 22-65 115 61

65 1a 625 940 1175 65-80185 75

35 26 4,5 135 68135 -

M10 20 17

1b 22-80 235 100

1 30-75 135 69

75 1a 1280 1920 2400 75-95210 85

40 30 5 160 80160 -

M10 25 17

1b 30-95 260 110

1 40-90 160 81

90 1a 2400 3600 4500 90-110245 100

45 34 5,5 200 100200 -

M12 30 40

1b 40-110 295 125

100 1 3300 4950 6185 50-115 270 110 50 38 6 225 113 180 89 M12 30 40

110 1 4800 7200 9000 60-125 295 120 55 42 6,5 255 127 200 96 M16 35 80

125 1 6650 10000 12500 60-145 340 140 60 46 7 290 147 230 112 M16 40 80

140 1 8550 12800 16000 60-160 375 155 65 50 7,5 320 165 255 124 M20 45 140

160 1 12800 19200 24000 80-185 425 175 75 57 9 370 190 290 140 M20 50 140

180 1 18650 28000 35000 85-200 475 195 85 64 10,5 420 220 325 156 M20 50 140

NEW

NEW


Shaft coupling design No. 001 - casted materials

For advanceddrive

technology

MONITEX

coupling monitoringp.43

Components

Torsionally flexible, maintenance-free

Damping vibrations

Axial plug-in, fail-safe

Allover machining good dynamic properties

Compact design/small flywheel effect Finish bore according to ISO fit H7,

feather keyway according to DIN 6885 sheet 1 - JS9

Basic programme/stock programme see pages 38and 39

Approved according to EC Standard 94/9/EC(without aluminium AL-D)

Mounting instructions under www.ktr.com

ROTEXAluminium diecast (AI-D)

Spider (part 2) 1) Dimensions [mm]

Size Compo- Rated torque [Nm] Finish bore General Thread for setscrewsnent

92 Sh A 98 Sh A 64 Sh D d (min-max) L l1; l2 E b s DH dH D; D1 N G t TA [Nm]

ROTEXCast iron EN-GJL-250 (GG 25)

ROTEXNodular iron EN-GJS-400-15 (GGG 40)

= Material marking that the calculation/order is based on if no material is mentioned in the order.1) Maximum torque of the coupling TKmax. = rated torque of the coupling TK Nenn. x 2. 2) From size 125 thread for setscrews on request. 3) Material Al-H.

AL-D (thread opposite the keyway) EN-GJL-250 / EN-GJS-400-15 (thread on the keyway)


17/4417

ROTEX

1 1 1 2 1a 1b2

NEW

NEW

141a

7,5 12,5 16 0-1635 11

13 10 1,5 30 10 30 M4 5 1,51b 50 18,5

191a

10 17 21 0-2566 25

16 12 2 40 18 40 M5 10 21b 90 37

241a

35 60 75 0-3578 30

18 14 2 55 27 55 M5 10 21b 118 50

281a

95 160 200 0-4090 35

20 15 2,5 65 30 65 M8 15 101b 140 60

381

190 325 405 0-48114 45

24 18 3 80 3870 27

M8 15 101b 164 70 80

421

265 450 560 0-55126 50

26 20 3 95 4685 28

M8 20 101b 176 75 95

481

310 525 655 0-62140 56

28 21 3,5 105 5195 32

M8 20 101b 188 80 105

55 1 410 685 825 0-74 160 65 30 22 4 120 60 110 37 M10 20 171b 210 90 120

651

625 940 1175 0-80185 75

35 26 4,5 135 68115 47

M10 20 171b 235 100 135

751

1280 1920 2400 0-95210 85

40 30 5 160 80135 53

M10 25 171b 260 110 160

901

2400 3600 4500 0-110245 100

45 34 5,5 200 100160 62

M12 30 401b 295 125 200

92 Sh A 98 Sh A

14

19

1a

1a

7,5

10

12,5

17

35 11 13 10 1,5 30 10 30 - M4 5 1,5

66 25 16 12 2 40 18 40 - M5 10 2

L l1; l2 E b s DH dH D N G t TA [Nm]

Order form: ROTEX-38

Coupling size

St

Material

92

Spider hardnessShore A]

1 45 1a 25

Hub Finish bore Hub Finish boredesign design


Shaft coupling design No. 001 - material steel

For advanceddrive

technology

MONITEX

coupling monitoringp.43

Hubs from steel, specifically suitable for drive elementssubject to high loads, e. g. steel mills, elevator drives,spline hubs, etc.)

Torsionally flexible, maintenance-free, vibration-damping

Axial plug-in, fail-safe Allover machining - good dynamic properties

Compact design/small flywheel effect

Finish bore according to ISO fit H7,feather keyway according to DIN 6885 sheet 1 - JS9

Basic programme/stock programme see pages 38 and 39



Components

Steel (thread on the keyway)

Standard Spider Large Large hubhub hub lengthened

- ROTEX 19, 28 and 42 hub material X10CrNiS 18-9 material number 1.4305 (V2A) DIN 17440- ROTEX 24, 38 and 48 hub material X6CrNiMoTi17-12-2 material number 1.4571 (V4A) DIN 17440

ROTEX19 48 from stainless steel available from stock

ROTEXsteel

Spider (part 2) 1) Dimensions [mm]

Size Compo- Rated torque [Nm] Finish bore General Spec. for steel Thread for setscrewsnent

92 Sh A 98 Sh A 64 Sh D d (min-max) L l1; l2 E b s DH dH D N G t TA [Nm]

Size Compo-

nent

Spider (part 2) 1)

Rated torque [Nm] General Thread for setscrews

Dimensions [mm]

Finish bored

ROTEX sintered steel

unbored, 8, 10, 11, 12, 14

unbored, 14, 16, 19, 20, 22, 24

= If no material is mentioned in the order, the calculation/order is based on the material marked with

1) Maximum torque of the coupling TKmax. = rated torque of the coupling TK Nenn. x 2


18/4418

21H 1H

L l1; l2 E b s DH D DK1 DK2 x1/x2 E1 MxlTA

[Nm]

19 1H 20 66 25 16 12 2 40 - 46 - 17,5 31 M6x16 14

24 1H 28 78 30 18 14 2 55 - 57,5 - 22,5 33 M6x20 14

28 1H 38 90 35 20 15 2,5 65 - 73 - 25,5 39 M8x25 35

38 1H 45 114 45 24 18 3 80 - 83,5 - 35, 43 M8x30 35

42 1H50

126 50 26 20 3 9585 - 93,5

39,0 48M10x30

6955 - 97 - M10x35

48 1H55

140 56 28 21 3,5 10595 - 105

45,0 50M12x35

12060 - 108,5 - M12x40

55 1H65

160 65 30 22 4 120110 - 119,5

50,0 60M12x40

12070 - 122 - M12x45

65 1H

70

185 75 35 26 4,5 135

115 - 123,5

60,0 65

M12x40

12080 - 132,5 - M12x45

75 1H80

210 85 40 30 5 160135 - 147,5

67,5 75 M16x50 29590 - 158 -

90 1H90

245 100 45 34 5,5 200160 - 176

81,5 82 M20x60 580110 - 197 -

100 1) 1H 110 270 110 50 38 6 225 180 - 185,5 83 102 M16x50 295

110 1) 1H 120 295 120 55 42 6,5 255 200 - 208 90 115 M20x60 580

125 1) 1H 140 340 140 60 46 7 290 230 - 242,5 103 130 M24x70 1000

ROTEX Torsionally flexible couplingsFlange programmDesign A-H

For advanceddrive

technology

Dimensions[mm] Cylinder screwsDIN EN ISO 4762Size

A-H

Compo-nent

Finishbore

dmax.[mm]

Assembly/disassembly by means of 4 screws only

Exchange of spider with no need to shift the driving and dri-ven side (motor and pump)

Positive-locking and frictionally engaged hub combinations tobe assembled radially (dimension E1 of design AFN =dimension E1 of A-H)

Finish bore according to ISO tolerance H7, feather keyaccording to DIN 6885 sheet 1 - JS9

Please order our separate dimension sheet (M425460)



Design A-H

Components

Order form: ROTEX-38 A-H 98 1H 38 1H 30

Coupling Design Spider hardness Compo- Finish bore Compo- Finish boresize [Sh A] nent d1 nent d2

1) From size 100: 4 clamping screws for each clamping hub.

Please note:With maximum bore the feather keys are offset to each other by approx. 5!

Hub materials: up to size 90 S355J2G3

from size 100 EN-GJS-400-15


19/4419

ROTEX

2 6x 21Dh 1Dh

1,4

1,5

1,8

2,0

2,1

2,2

2,6

3,0

3,4

18

20

24

26

28

30

35

40

45

M6x20

M8x25

M8x30

M10x30

M12x35

M12x40

M12x40

M16x50

M20x60

14

35

35

69

120

120

120

295

580

22,5

25,5

35,5

39,0

45,0

50,0

60,0

67,5

81,5

30

35

45

50

56

65

75

85

100

27

30

38

46

51

60

68

80

100

-

-

-

85

95

110

115

135

160

55

65

80

95

105

120

135

160

200

28

38

45

55

60

70

80

90

110

24

28

38

42

48

55

65

75

90

35

95

190

265

310

410

625

1280

2400

1,0 0,75

1,17

1,87

1,06

1,76

0,99

1,69

0,91

1,60

0,87

1,57

0,70

1,40

2,09

2,44

1,31

2,00

1,13

1,83

2,19

3,05

1,71

2,93

0,87

1,40

0,80

1,32

0,74

1,27

0,68

1,20

0,65

1,18

0,52

1,05

1,57

1,83

0,98

1,50

0,85

1,37

1,64

2,29

1,28

2,19

1,40

1,60

1,90

2,20

3,90

4,10

5,10

5,70

7,10

7,90

9,50

11,20

12,30

12,80

16,10

16,80

23,60

26,00

27,00

29,50

48,90

52,60

145

185

151

191

171

211

178

218

190

230

200

240

280

300

260

300

275

315

335

385

343

413

49

89

41

81

33

73

26

66

22

62

10

50

90

110

40

80

25

65

85

135

53

123

100

140

100

140

100

140

100

140

100

140

100

140

180

200

140

180

140

180

200

250

180

250

DH D dH l1; l2 x1; x2 l11 E LZS-DKM-H MTA

[Nm]

ROTEX Torsionally flexible couplingsDouble cardanic the innovation in pump designType ZS-DKM-H

For advanceddrive

technology

Standard spacers up to 250 mm shaft distance dimension ex stock

Assembly/disassembly through 4 screws only Compensates for high shaft displacements due to double-

cardanic design Remains torsionally symmetric in case of shaft

displacements Reduced vibration and noise Low restoring forces Increase of the total lifetime of all

adjacent components (bearings, seals etc.) Finish bore according to ISO fit H7,

feather keyway according to DIN 6885 sheet 1 - JS9 Approved according to EC Standard 94/9/EC

(Explosion Certificate ATEX 95) Mounting instructions under www.ktr.com

38 30

Finish bore Finish bored1 d2

98

Spider hardness[Sh A-GS]

140

Shaft distancedimension

L

ZS-DKM-H

Type

ROTEX-38

Couplingsize

Order form:

Components

Type ZS-DKM-H

Radial Angular[mm] []

Dimensions [mm]Finishbored

d1/d2 max.[mm]

Spider(part 2) 1)

TKN[Nm]

Dismount-able

length L

[mm]

Size

ZS-DKM-H

Weight 2)

[kg]

Cap screwsDIN EN ISO 4762 12.9

ATTENTION: The standard line is only for the horizontal assembly.Vertical assembly on request.

1) Maximum torque of coupling TKmax. = nominal torque of coupling TKN x 2Size 24 to 75 spider type 95/98 Sh A-GS; at size 90 spider type 95 Sh A with inner ringZS-DKM-H: transmittable torque according to 92 Sh A-GS

2) Refer to max. bore

Angular[]

Max.displacementsat n = 3000 1/minat n = 1500 1/min

Axial[mm] Radial

[mm]


20/4420

POLY-NORM Torsionally flexible couplings

Coupling description

For advanceddrive

technology

Explosion-proof use

POLY-NORM Couplings are for use in hazardous environments. The couplingis approved according to the European EC Standard 94/9/EC (ATEX 95)(appliance category 2 and 3) and can be used in drives of this hazard class.(Click on www.ktr.com to review the Certificate of Compliance and the opera-tion and assembly instructions).

Variety of Options

The coupling can be adapted to many applications due to the many optionsthat are possible with the building block arrangement. The POLY-NORM

components of a given model can be mixed and matched with each otherto obtain different shaft distances using the same basic component.

On request, we can provide customized variations of the POLY-NORM tofit your needs for example, our POLY-NORM overload coupling with

RUFLEX torque limiter. Just ask us!

General description

The POLY-NORM coupling is a torsionally flexible, shear type shaft coupling.

It has an axial plug-in design with a unique short over all length. The POLY-NORM can be used in nearly all types of machinery and is ideal for the pumpindustry.

The POLY-NORM coupling compensates for shaft misalignment of all kindsand safely transmits the torque.

Function/Design

The coupling consists of two hubs, with fingers separated by elastomeric

elements. The hubs are assembled blindly plugging the hub fingers into eachother axially and the elastomer ring is trapped in a groove between both coup-ling hubs. The compact POLY-NORM coupling transmits torque with theelastomer in compression.

Shaft misalignments, vibrations and shock loads are effectively absorbed bythe POLY-NORM.

The coupling is maintenance-free and used in general machinery, the pumpindustry and in compressors. Torques of up to 11,000 Nm are stocked in 14different sizes and 7 designs. In addition to the standard coupling models,flange drop out center and spacer options are available in many variations.


21/4421

1 12

32

60

75

85

90100

48

1108

1610

1615

2012

2517

2517

30203535

l1; l2 s L D DH NTA

[Nm]

25,5

30,0

42,5

38,5

52,5

46,5

52,098,0

d1; d2max.

25

40

40

50

60

60

7590

4

5

5

5

5

5

56

55

65

90

82

110

98

109202

53

78

78

97

123

139

148165

78

106

106

129

158

182

200224

7,5

6,0

18,5

10,5

20

10

1153

1/4

3/8

3/8

7/16

1/2

1/2

5/81/2

13

16

16

22

25

25

3238

3

5

5

6

6

6

810

5,7

20

20

31

49

49

92115

TB1 TB2

POLY-NORM


Standard shaft coupling type AR

For advanceddrive

technology

Torsionally flexible, reduces vibrations

Failsafe

Maintenance-free

Very short design Axial plug-in

According to DIN 740


Detailed mounting instructions and further informationavailable at www.ktr.com

Massmoment ofinertia 3)

POLY-NORM 38

Coupling size

AR

Design

38 30

Finish bore A Finish bore B

1) Standard material Perbunan (NBR) 78 Shore-A 2) Bore H7 with keyway DIN 6885 sheet 1 [JS9] and threads for setscrews on the feather keyway.3) Refer to medium bore Basic programme: Please ask for our standard KTR-N 39580, sheet 1.

Components

Drawing type AR cross section

POLY-NORMAR Grey cast iron (EN-GJL-250)Elastomer ring (part 2) 1) Dimensions [mm] AR 3)

Size Torque [Nm] Finish bore General Thread for setscrew2) Weight

TKN TK max. dmax2)

LAR l1 s DH D dH N G t [kgm2

] [kg]28 40 80 28 59 28 3 69 46 36,5 12 M 5 7 0,0004 0,9

32 60 120 32 68 32 4 78 53 41,5 14 M 8 7 0,0008 1,4

38 90 180 38 80 38 4 87 62 50 19,5 M 8 10 0,0016 2,0

42 150 300 42 88 42 4 96 69 55,5 20 M 8 10 0,0026 2,7

48 220 440 48 101 48 5 106 78 64 24 M 8 15 0,0042 3,7

55 300 600 55 115 55 5 118 90 73 29 M 8 14 0,0070 5,5

60 410 820 60 125 60 5 129 97 81 33 M 8 15 0,0112 6,9

65 550 1100 65 135 65 5 140 105 86 36 M10 20 0,0174 8,8

75 850 1700 75 155 75 5 158 123 100 42,5 M10 20 0,028 13,5

85 1350 2700 85 175 85 5 182 139 116 48,5 M10 25 0,052 19,5

90 2000 4000 90 185 90 5 200 148 128 49 M12 25 0,090 23,2

100 2900 5800 100 206 100 6 224 165 143 55 M12 25 0,160 31,9

110 3900 7800 50-110 226 110 6 250 185 158 60 M16 30 0,317 38,0

125 5500 11000 55-125 256 125 6 280 210 178 70 M16 35 0,570 55,2

Taperclamping

sleeve

POLY-NORM

Size

POLY-NORM with taper clamping sleeve

Coupling design TB 1 Cam-sided screwing Combination possible!TB 2 Collar-sided screwing

Dimensions [mm] fixing screws *2

for taper sleeves

Size*1

[inch]

Length[mm]

number

*1 BSW thread *2 2 fixing screws each except for taper clamping sleeve 3535: 3 fixing screws Please ask for our separate data sheet M407045

Components

Components:

Type AR1 = Standard hub (EN-GJL-250)2 = Elastomer ring (NBR 78 ShA)

Order form:


22/4422

38 M6x16 5 5x72 62 10 75 M10x25 6 6x60 120 49

42 M8x16 5 5x72 69 25 85 M12x25 6 6x60 138 86

48 M8x20 6 6x60 78 25 90 M16x30 6 6x60 149 210

55 M8x20 6 6x60 88 25 100 M16x30 6 6x60 163 210

60 M8x20 6 6x60 98 25 110 M16x40 8 8x45 183 210

65 M10x20 6 6x60 104 49 125 M20x40 8 8x45 202 410

1 2 4D 3D

38

42

48

55

60

65

75

85

90

100110

125

TKN TKmax. d1 max. d2 max.

90

150

220

300

410

550

850

1350

2000

29003900

5500

180

300

440

600

820

1100

1700

2700

4000

58007800

11000

38

42

48

55

60

65

75

85

90

100110

125

32

35

42

48

55

60

65

75

85

90100

110

LADR

80

88

101

115

125

135

155

175

185

206226

256

l1/l2

38

42

48

55

60

65

75

85

90

100110

125

s

4

4

5

5

5

5

5

5

5

66

6

DH

87

96

106

118

129

140

158

182

200

224250

280

D

62

69

78

90

97

105

123

139

148

165185

210

D1

48

54

62

72

80

86

98

112

122

136150

168

dH

50

55,5

64

73

81

86

100

116

128

143158

178

N

19,5

20

24

29

33

36

42,5

48,5

49

5560

70

M

11

12

13,7

18,7

22,2

26,7

27,8

33,7

31,5

37,539,5

48,0

W

12

16

16

15

14

11

16

18

26

2830

35

G

M 8

M 8

M 8

M 8

M 8

M10

M10

M10

M12

M12M16

M16

t

10

10

15

14

15

20

20

25

25

2530

35

t1

7

7

7

14

15

20

20

25

25

2530

35

TA[Nm ]

10

10

10

10

10

17

17

17

40

4080

80


3-part design ADR

For advanceddrive

technology

Torsionally flexible, reduces vibrations

Elastomer ring can be exchanged in assembledcondition

Failsafe

Maintenance-free Short design

Axial plug-in

According to DIN 740



Order form: POLY-NORM 65

Coupling size

ADR

Design

d1 - 55 d2 - 60

Finish bore Finish borepart 1 part 3D

Type ADR (3-part)

1) Standard material Perbunan (NBR)2) Bore H7 with keyway to DIN 6885 sheet 1(JS9) with thread for set screws

Basic programme: Please ask for our standard KTR-N 39581, sheet 1.

M x l Separation D4 M x l Separation D4Size Number z TA [Nm]

3) Size Number z TA [Nm]3)

[mm] z x angle [mm] [mm] z x angle [mm]

Classification of cap crews DIN EN ISO 476212.9

Components

POLY-NORM ADR

Size

Elastomer ringtorque[Nm] 1) Finish bore 2)

Dimensions [mm]

General Thread for setscrew

= displacement of hubComponents:

Type ADR (3-part)1 = Standard hub (EN-GJL-250)2 = Elastomer ring (NBR 78 ShA)

3D = F lange hub (EN-GJS-400-15)4D = Cam ring (EN-GJL-250)


23/4423

POLY-NORM

28

32

38

42

48

55

60

65

75

85

90

100

35

35

42

45

52

55

60

65

75

85

90

100

40 80 30

60 120 35

90 180 40

150 300 45

220 440 50

300 600 60

410 820 65

550 1100 70

850 1700 80

1350 2700 90

2000 4000 100

2900 5800 110

3 1

4 1

4 1

4 1

5 1,5

5 1,5

5 1,5

5 1,5

5 1,5

5 1,5

5 1,5

6 2

69 46 26 M5 7

78 53 26 M8 7

87 62 33 M8 10

96 69 35 M8 10

106 78 41,5 M8 15

118 88 43,5 M8 14

129 97 47,5 M8 15

140 105 51,5 M10 20

158 123 60,5 M10 20

182 139 69,5 M10 25

200 148 73,5 M12 25

224 165 83 M12 25

100140100140100140100140100140100140180100140180100140180

140180250140180250140180250140180250

170210170210184224190230204244210250290220260300230270310

290330400310350420320360430340380450

49,569,54969496949694969496989496989496989

6989

1246989

1246989

1246989

124

2,42,93,23,94,35,15,16,06,67,59,4

10,812,211,213,014,614,015,817,5

23,225,629,832,135,240,738,242,249,350,054,863,2

0,00200,00300,00420,00620,00480,00680,00940,01280,01700,02160,01880,02400,02920,03260,04140,05040,05640,07300,0894

0,08240,10080,13320,15700,16580,18120,24660,28800,35660,39880,44500,5465

4N 4N3N 3N2


Drop-out center design couplings type AZR

For advanceddrive

technology

Connection of long shaft gaps with spacers

Enables a change of the elastomer without disassemblyof the drive and the driven components.

No movement of driver and driven components is

necessary for disassembly of pump thrust bearing. Custom designs are available (AZVR)



140 38 42

Drop out center Finish bore A Finish bore Blength L

POLY-NORM AZR

General

LAZR l2 l3 s l4 DH DF M G tFinish bore 3)

dmax

Thread for setscrew 3)

Elastomer ring (p. 2) 1)

torque [Nm]

TKN TKmax

AZR

Weight 4)

[kg]

Massmoment

of inertia 4)

[kgm2]

Size

Drop outcenterlengthL [mm]

Dimensions 2) [mm]

1) Standard material Perbunan (NBR) 78 Shore-A

2) For screw specification see POLY-NORM AZR short3) Bore H7 with keyway DIN 6885 sheet 1 [JS9] and

threads for setscrews on the feather keyway.

4) Refer to medium bore

Basic programme:Please ask for our standardKTR-N 39582, sheet 1.

Order form: POLY-NORM 42

Coupling size

AZR

Design

Still available:

POLY-NORM

type AZVRfor limited assembly space:Screw access from the shaft side

Further type:

POLY-NORM combined

with RUFLEX

overload coupling.

Please ask for our separate

data sheet (M412784).

Components

Design AZR

Components:Design AZR

2 = Elastomer ring (NBR 78 ShA)3N = Driving flange (EN-GJS-400-15)4N = Coupling flange (S355J2G3)


24/4424

28 40 80 16 8300 5200 3318 1867 897 1 0,20 1,2

32 60 120 24 7300 7820 4989 2821 1349 1 0,25 1,438 90 180 36 6500 13540 8639 4885 2336 1 0,25 1,5

42 150 300 60 5900 26250 16748 9471 4528 1 0,25 1,7

48 220 440 88 5400 29896 19074 10786 5157 1,5 0,30 1,8

55 300 600 120 4800 38500 24563 13891 6641 1,5 0,30 2,0

60 410 820 164 4400 67600 43129 23200 11661 1,5 0,30 2,2

65 550 1100 220 4100 81800 52188 26994 14111 1,5 0,35 2,4

75 850 1700 340 3600 122900 78410 40557 21200 1,5 0,40 2,7

85 1350 2700 540 3150 243045 155063 74858 41925 1,5 0,40 3,0

90 2000 4000 800 2900 361571 230682 111364 62371 1,5 0,45 3,4

100 2900 5800 1160 2600 548200 349752 168846 94565 3 0,50 3,9

110 3900 7800 1560 2300 792300 505487 244028 136672 3 0,60 4,3

125 5500 11000 2200 2050 1023240 652827 315158 176509 3 0,60 4,8

Lmax./min = L + Ka [mm] Kw = Smax. Smin. [mm]

4,5 6,0

4,0 5,5

2,5 3,5


Technical data

For advanceddrive

technology

General information about the elastomer

Material/HardnessPermanent temperature range [C]Max. temperature (short time) [C]

Applications

Resistant to

Perbunan [NBR]/78 Shore A- 30 to + 80- 50 to + 120General machine constructionPump industryATEX applicationsChemical industryApplications of average elasticity

Gasoline, dieselAcids, basesTropics

(Salt-) Water (hot/cold)Oils, greasesPropane, butaneNatural gas, city gas

Supplement to our programme: elastomeres for the high-temperature range

Twisting angle with

TKN TKmax

Torsion spring stiffness Cdyn [Nm/rad]

1,0 TKN 0,75 TKN 0,5 TKN 0,25 TKN

Single elastomer packages(special)

Elastomer ring (Standard)

Assembly Guidelines

During assembly, the coupling halves must be mounted in a way that the coupling hub faces are flush to the end of the shafts.The align-ment of the shafts must be adjusted that radial and the angular misalignments are minimal. The life of the coupling and bearings is exten-ded by precise alignment. Steps must be taken to ensure that the alignment will not change during all operating conditions. Shaft misa-lignments which cannot be avoided must not exceed the figures indicated in the table. Angular and radial misalignments can occur at thesame time but the sum of these misalignments must not exceed the figures set forth in the table above. See the KTR mounting instruc-tions, KTR standard 49510 at our homepage www.ktr.com.

1[degree]

Angular misalignment KwRadial misalignment KrAxial misalignment KaMisalignment

1) Misalignment at n = 1500 1/min.

Angular and radial misalignment can occur at the same time. The sum of all misalignments must not exceed the figures set forth in the table.Couplings may be dynamically balanced on request

Max.permissible misalignment [ mm] 1)

AxialKa Radial Kr Angular Kw

Max.speed[1/min]

at V = 30 m/s

Torque [Nm]

Nominal Max. AlternatingTKN TKmax. TKW

POLY-NORM

Sizes forall types


25/4425

30 C+40 C +60 C +80 C

+30 C

St 1,0 1,2 1,4 1,8

POLY-NORM


Coupling selection

For advanceddrive

technology

thus St = 1,4thus SZ = 1,0thus SA or SL = 1,5

Selection of the POLY-NORM coupling meets the DIN 740 part 2 specification. The coupling must be sized such thatthe coupling rated nominal torque is not exceeded in any operating condition. A comparison must be made between theapplication torque vs. the rating of the coupling. The selection process for torsionally flexible shaft couplings is describedin detail in the ROTEX catalogue which can be used for POLY-NORM couplings as well.

Temperature factor St Starting factor SZ

Starting100 200 400 800

frequency/h

SZ 1,0 1,2 1,4 1,6

Shock factor SA/SL

SA/SLmild shocks 1,5

medium shocks 1,8

heavy shocks 2,5

Driver power data:

Power P = 75 kWSpeed n = 1480 1/minMass moment of inertia JA = 1,06 kgm

2

General data:

Ambient temperature t = +60 CStarting frequency z = 6 1/hNormal operation with mild shocks

Calculation engine torque TAN:

PTAN [Nm] = 9550 n

75 kWTAN [Nm] = 9550 = 484 Nm

1480 1/min

Calculation nominal torque of coupling TKN:

TKN [Nm] TAN StTKN [Nm] 484 Nm 1,4 = 678 Nm

Selected coupling:

POLY-NORM AR Size 75

Transmittable torques of the coupling: Nominal torqueMaximum torque

Checking of the maximum torque

TK max/ drive side:

Calculation mass factor of the drive side MA:

JLMA = JA + JL

2,3 kgm2MA = = 0,681,06 kgm2 + 2,3 kgm2

Calculation of the peak torque of the unit

drive-side TSA:

TSA [Nm] = TAS MA SATSA [Nm] = 968 Nm 0,68 1,5 = 987 Nm

Calculation of the maximum permissible torque TK max:

TK max [Nm] TSA SZ St + TLN StTK max [Nm] = 987 Nm 1,0 1,4 + 0 Nm 1,4 = 1381 Nm

TK max of selected coupling TK max of the drive side(mathematically) 1700 Nm 1382 Nm

TLN = 0: when motor is switched on the pumphas no load torque

Performance data of pump:

Nominal torque TLN = 400 NmPeak torque 1) TLS = 300 NmMass moment of inertia JL = 2,3 kgm

2

1) Peak value with shock load

Calculation engine peak torque TAS:

TAS [Nm] = 2 TANTAS [Nm] = 2 484 Nm = 968 Nm

Factor 2: Peak value with drive-side shock load,e. g. as in full voltage motor starting

Example of calculation Coupling selection according to DIN 740

Pump drive with three-phase motor

Checking of the maximum torque

TK max/ driven-side:

Calculation of mass factor of the driven side ML:JAML = JL + JA

1,06 kgm2ML = = 0,322,3 kgm2 + 1,06 kgm2

Calculation of peak torque of the unit

load side TSL:

TSL [Nm] = TLS ML SLTSL [Nm] = 300 Nm 0,32 1,5 = 144 Nm

Calculation of the maximum permissible torque TK max:

TK max [Nm] TSL SZ St + TLN StTK max [Nm] = 144 Nm 1,0 1,4 + 400 Nm 1,4 = 762 Nm

TK max of selected coupling TK max of the drive side(mathematically) 1700 Nm 761 Nm

TKN = 850 Nm ( 678 Nm)TK max = 1700 Nm


26/4426

POLY Torsionally flexible couplings

Coupling description

For advanceddrive

technology

Perbunan [NBR] / 92 Shore A- 30 to + 80- 50 to + 120ATEX applicationsChemical industryMiningGeneral machine constructionApplications of average elasticity

Gasoline, dieselAcids, basesTropics(Salt-) Water (hot/cold)Oils, greasesPropane, butaneNatural gas, city gas

General information about the elastomer packing

Material/HardnessPermanent temperature range [C]Max. temperature (short time) [C]

Applications

Resistant to

Explosion-proof use

POLY Couplings are for use in hazardous environments. The couplingis approved according to the European EC Standard 94/9/EC (ATEX 95)and thereby can be used in drives of this hazard class (appliance category 2and 3). Click on www.ktr.com to read the Certificate of Compliance, along withthe operation and assembly instructions.

Variation of components

The coupling can be adapted to many applications due to the many optionsthat are possible with the building block arrangement. The POLY components

of a given model can be mixed and matched with each other to obtain differentshaft distances using the same basic component.

General description:

The POLY coupling is a torsionally flexible, shear shaft coupling for generalmachinery. It is assembled by axially pluging the hubs into each other andhas excellent dampening characteristics. Its unique features are the flexible

elastomeric elements that are located in both coupling halves.The POLY advantage A much greater number of flexible elements and thusa larger effective mass of the elastomer to accept vibration and to dissipate theheat caused by torsional vibrations when compared to similar compe-titive couplings with elements only in one half.

Coupling selection

The coupling selection must be done on the base POLY-NORM or ROTEX.

Function/Design

The coupling consists of 2 hubs with fingers that are separated by elasto-meric elements which are assembled by axial blind plug-in to each other.

Elastomer elements are placed into the slots of both coupling hubs. Torqueis transmitted in a compact design. Shaft misalignments, vibrations andshock loads are effectively absorbed by the POLY coupling.

The coupling is maintenance-free and used in general machinery, the pumpindustry and in compressors. The Poly coupling handles torque rangesof up to 63,000 Nm and is stocked in 21 different sizes and 4 designs forimmediate availability. In addition to our standard coupling models, a varietyof flange, drop out center and spacer options are available.


27/4427

1 2Z 1 3D 2D

5000

5000

5000

5000

4800

4300

3800

3500

3300

3000

2700

2350

22001850

1600

1400

42

72

100

170

210

320

400

660

820

1100

1600

2500

39506100

9000

14300

8 (Z)

9 (Z)

10 (Z)

12 (Z)

14 (Z)

15 (Z;D)

17 (Z;D)

19 (Z;D)

20 (Z;D)

22 (Z)

25 (Z;D)

28 (Z;D)

30 (Z;D)35 (D)

40 (D)

45 (D)

20 28 -

28 38 -

32 42 -

38 48 -

44 55 -

50 60 45

60 65 50

75 75 65

65 75 60

85 85 75

90 90 85

100 100 95

110 110 100130 - 130

145 - 145

160 - 160

86 43 50 - 35 25 - 3 3 73 1,7

97 55 65 - 41 30 - 7 3 85 2,7

107 60 70 - 45 35 - 10 4 94 3,5

131 70 80 - 55 43 - 12 4 114 5,4

142 80 93 - 60 46 - 17 4 124 7,6

157 90 100 75 65 52 35 22 4 134 8,6

176 100 110 90 70 56 40 25 4 144 12

195 125 125 107 75 64 45 30 4 154 18

205 115 127 105 80 65 45 23 4 164 20

224 140 140 129 90 75 59 39 4 184 25

257 150 150 140 100 84 60 44 5 205 35

288 165 165 160 110 90 65 45 5 225 53

308 180 180 170 130 108 75 58,5 5 265 66373 210 - 210 160 - 95 69 5 325 125

423 240 - 240 180 - 115 85 5 365 180

473 270 - 270 180 - 110 74 6 366 220

DH D DZ DD l1; l2 MZ MD N E LPKZ/PKD

POLY

Torsionally flexible / maintenance-free

Reduced vibrations

Shear type

Axial plug-in assembly Short overall length / minimum distance between shafts

In PKD the elastomer elements can be changed withoutmoving driver or driven



Weight 3)[kg]

Size Nominaltorque 1)

TKN [Nm]

Max. finishbore

dmax. [mm]

part 1 part 2Z part 2D

Dimensions [mm]Max.speed 2)

n [1/min]

Order form: POLY

Coupling size

PKD

Design

28 90 80

Size Finish bore Finish borepart 1 part 2

1) Maximal torque TKmax = TKN x 2; Standard material Perbunan (NBR) 92 Shore-A;Standard hub material: EN-GJL-2502) For v = 30 m/sec.For peripheral speeds exceeding v = 30 m/sec. we recommend a dynamical balancing; hub material EN-GJS-400-153) Refer to medium bore

Components:

Type PKD (D)

1 = Cam section *

2D = Flange hub

3D = Cam ring

* To be preferably used drive-sided

Components:

Type PKZ (Z)

1 = Cam section

2Z = Pocket section *

* To be preferably used drive-sided

Components

Type PKZ (Z) (Size 8 to 30) Type PKD (D) (Size 15 to 45)

POLY Torsionally flexible couplings2-part design type PKZ

3-part design type PKD

For advanceddrive

technology


28/4428

1B1A 2B 2A

DH DF l1, l2 b MA E L LPKA LZ G tTA

[Nm]8 42 5000 38 86 55 35 1,5 25,5 3 100 170 66 M5 15 2 3,04

9 72 5000 45 97 70 41 1,5 30,5 3100 182 63

M8 15 104,26

140 222 103 4,66

10 100 5000 50 107 78 46 1,5 35,5 4100 192 61

M8 20 105,42

140 232 101 5,88

12 170 5000 60 131 95 55 1,5 43,0 4100 210 55

M8 20 109,49

140 250 95 10,15180 290 135 10,86

14 210 4800 70 142 105 60 1,5 48,0 4100 220 54

M8 25 1011,46

140 260 94 12,23180 300 134 13,01

15 320 4300 70 157 110 65 1,5 49,5 4

100 230 53

M8 25 10

14,77140 270 93 15,63180 310 133 16,50250 380 203 18,01

17 400 3800 80 176 125 70 1,5 54,5 4

100 240 53

M8 25 10

18,79140 280 93 19,60180 320 133 20,41250 390 203 21,83

19 660 3500 90 195 135 75 1,5 59,5 4140 290 91

M8 30 1024,62

180 330 131 25,91250 400 201 28,15

20 820 3300 100 205 150 80 2,0 61,0 4140 300 81

M8 30 1030,96

180 340 121 32,18250 410 191 34,79

22 1100 3000 105 224 160 90 2,0 71,0 4180 360 127

M10 35 1737,79

250 430 197 39,94

25 1600 2700 125 257 195 100 2,0 81,0 5140 340 81

M12 40 4054,73

180 380 121 56,50250 450 191 59,60

28 2500 2350 140 288 215 110 2,0 91,0 5

140 360 74

M12 45 40

75,22

180 400 114 77,84250 470 184 82,41

POLY Torsionally flexible, not failsafe couplings

Design PKA (dismountable coupling)

For advanceddrive

technology

POLYsize

NominaltorqueTKN

[Nm]

Finishboredmax. [mm]Part 1a/2a

Weight[kg]

Dimensions [mm]General Thread of setscrewsMax.Speedn

[1/min]

Torsionally flexible, maintenance-free

Vibration-reducing

Not failsafe

Axial plug-in Short design / low shaft distance dimension

In the PKD the elastomer packages can be exchanged inexembled state


Detailed mounting instructions and further information atwww.ktr.com

Order form: POLY

Coupling type

PKA

Type

28 140 38 40

Size Dismount- Finish bore Finish boreable L part 1a part 2a

Components

Type PKA

Components:

Type PKA

1A/2A = Coupling flange

1B = Spacer

2B = Driving flange

1A and 1B to be preferably used drive-sided


29/4429

1 3D 2D 1A 2B 2A1B

8 9 10 12 14 15 17 19 20 22 25 28 30 35 40 45

1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3

n = 750 1/min 0,8 0,8 0,8 0,8 0,8 1,0 1,0 1,0 1,0 1,0 1,0 1,0 1,2 1,2 1,2 1,2

n = 1000 1/min 0,7 0,7 0,7 0,7 0,7 0,9 0,9 0,9 0,9 0,9 0,9 0,9 1,1 1,1 1,1 1,1

n = 1500 1/min 0,5 0,5 0,5 0,5 0,5 0,7 0,7 0,7 0,7 0,7 0,7 0,7 0,7 0,9 0,9 0,9

M5 M8 M8 M8 M8 M8 M8 M8 M8 M10 M12 M12 M16 M16 M16 M16

18 23 27 30 10 15 15 15 15 20 20 20 20 25 25 30

15 15 20 20 25 25 25 30 30 35 40 45 - - - -

2 10 10 10 10 10 10 10 10 17 40 40 80 80 80 80

1 2 3 3a 4 3b 4 5 6 7 8 9

8 10 10 10 10 12 12 12 12 16 16 16 16 20 20 20

b 18,4 24,9 27,2 27,7 34,9 29,6 34,9 40,0 43,3 45,7 52,1 58,1

t 10,0 15,3 16,1 18,4 19,6 18,4 19,6 22,2 28,6 25,0 28,6 29,3

h 18,9 23,9 24,6 26,8 34,6 29,6 34,6 40,6 41,1 60,0 59,7 69,0

M - - - - - M8 M8 M8 M10 M8 M10 M10 M12 M12 M16 M16

l - - - - - 30 25 25 30 30 30 40 40 55 55 60

- - - - - 6 6 6 6 8 8 8 8 10 10 10

- - - - - 25 25 25 25 25 49 49 86 86 295 210D2 - - - - - 92 106 126 123 150 162 178 202 240 275 308

D4 (H7/h7) - - - - - 75 90 107 105 130 140 160 170 210 240 270

M M6 M6 M6 M8 M8 M10 M10 M10 M10 M10 M10 M12 - - - -

l 16 18 18 20 20 25 25 25 30 30 30 30 - - - -

4 5 5 5 5 6 6 6 6 8 8 8 - - - -10 10 10 25 25 49 49 49 49 49 49 86 - - - -

D2 70 85 93 113 125 135 150 160 175 190 225 250 - - - -D3 60 70 80 90 100 110 110 120 130 140 150 170 - - - -

POLY

Type PKD Type PKA Components:

1* = Cam section1A*/2A = Coupling

flange1B* = Spacer2B = Driving flange2D = Flange hub

3D = Cam ring* To be preferably used

drive-sided

Coupling type Type PKA

Type PKZ

Displacements [mm]

Threads for setscrew [mm]

Dimension G

Dimension t (Type PKZ and PKD)

Dimension t (Type PKA)

Element size

Number of elements

Dimension ofelastomer elements

b x t x h [mm]

Screw sizeM x l

NumberTightening torque TA [Nm]

Tightening torque TA [Nm]

NBR Elastomer elements (rectangular) 90 Sh A

Type PKZ and PKD Cyl. screw DIN EN ISO 4762 Dimension [mm]

Screw sizeM x l

NumberTightening torque TA [Nm]

Type PKA Cyl. screw DIN EN ISO 4762 Dimension [mm]

Max. axial displacement Ka

Max.radial displacementKr or max.angulardisplacement Kw

Type PKZ and PKD Type PKD

POLY Torsionally flexible couplings

Displacements Threads for setscrews Elastomer elements

For advanceddrive

technology

[degree]

Standard bore H7 with keyway DIN 6885 sheet 1 [JS9] and threads for setscrews on the feather keyway.Please see our detailed mounting instructions at our website www.ktr.com.

Components

Axial displacement Radial displacement Angular displacement

Radial and angular displacements can occur simultaneously.The combined sum V = Kr [mm] + (Emax. [mm] Emin. [mm]) must not exceed the values listed in table 1.


30/4430

KX-105

KX-120

KX-135

KX-150

KX-170

KX-190KX-215

KX-240

KX-265

KX-280

KX-305

KX-330

KX-355

KX-370

6485

10080

13750

17950

25700

3580046450

71360

94910

119500

147000

179900

220500

291000

12970

20160

27500

35900

51400

7160092900

142720

189820

239000

294000

359800

441000

582000

2000

1800

1600

1450

1250

11001000

900

800

720

675

625

575

535

34-105

61-120

67-135

82-150

96-170

122-190135-215

152-240

165-265

170-280

185-305

200-330

225-355

225-370

34-120

61-130

330

370

419

457

533

597660

737

826

927

991

1067

1156

1250

180

206

230

256

292

330368

407

457

508

533

572

610

720

202

232

240

260

292

330368

407

457

508

533

572

610

720

117

132

147

165

188

211237

264

292

311

324

330

356

382

30

46

46

46

63

6363

76

76

76

76

76

76

76

56

76

76

76

92

9292

122

122

122

122

122

122

122

3

6

6

6

6

66

6

6

6

6

6

6

6

22

45

30

12

43

2030

43

15

75

62

56

30

4

68,3

102,2

134,8

169,0

281,1

375,2484,1

712,2

948,6

1260,8

1431,8

1666,3

2154,6

2947,0

0,794

1,656

2,721

3,945

9,245

14,95023,047

43,837

71,023

114,634

148,792

200,380

297,525

448,199

TKN d1 d2DH D1 D2l1/l2 N1 N2E M *

237

270

300

336

382

428480

534

590

628

654

666

718

770

LTKmax.

1 3 2

REVOLEX KX

Torsionally flexible pin & bush coupling

For advanceddrive

technology

C

KTR Pumpenantriebe En

Documents