ShaftClampEls Low

20
Shaft Clamping Elements Index CROSS+MORSE Power Transmission Solutions Cross Shaft Clamping Element Features 2 Shaft Clamping Element Selection 3-4 Clamping Elements: Type RCK 15 - For Standard Hubs 5 Type RCK 13 - Standard General Purpose 6 Type RCK 16 - Standard General Purpose 7 Type RCK 70 - High Torque Units 8 Type RCK 71 - High Torque Units 9 Type RCK 80 - Minimal Axial Space 10 Type ACE 81 - Small Axial Space/Bore Selection 11 Type RCK 61 - Compact Small Shaft Units 12 Type CCE 54 - Single Nut Clamping 13 Type CCE 55 - Single Nut Clamping 13 Type RCK 40 - Original Compact Units 14 Type RCK 45 - Very Compact Versatile Units 15 Type RCK 11 - Maximum Torque Units 16 Type RCK 50 - Clamping Rings 17 Type RCK 19 - Clamping Discs 18 Type RCK 95 - Shaft Couplings 19 Installation and Disassembly Instructions 20 Catalogue Selection INDEX Enquiry CD Contents

description

Shaft clamp elements catalogue

Transcript of ShaftClampEls Low

Page 1: ShaftClampEls Low

Shaft Clamping Elements Index

CROSS+MORSE

Power Transmission Solutions

Power Transmission Solutions

Cross Shaft Clamping Element Features 2Shaft Clamping Element Selection 3-4Clamping Elements:Type RCK 15 - For Standard Hubs 5Type RCK 13 - Standard General Purpose 6Type RCK 16 - Standard General Purpose 7Type RCK 70 - High Torque Units 8Type RCK 71 - High Torque Units 9Type RCK 80 - Minimal Axial Space 10Type ACE 81 - Small Axial Space/Bore Selection 11 Type RCK 61 - Compact Small Shaft Units 12Type CCE 54 - Single Nut Clamping 13Type CCE 55 - Single Nut Clamping 13Type RCK 40 - Original Compact Units 14Type RCK 45 - Very Compact Versatile Units 15Type RCK 11 - Maximum Torque Units 16Type RCK 50 - Clamping Rings 17Type RCK 19 - Clamping Discs 18Type RCK 95 - Shaft Couplings 19

Installation and Disassembly Instructions 20

Catalogue Selection INDEX

Enquiry

CD Contents

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Shaft Clamping Elements

Cross Shaft Clamping Elements provide the latest technologyin drive connection.

Cross Shaft Clamping Elements, by means of frictional forces, provide connection of all types of transmissionequipment to their respective shafts, enabling transmission of both torque and axial thrust loads. Precision taperedthrust cones within the clamping elements create high pressure between shaft and hub to securely fasten pulleys,sprockets, gears etc. Stresses in both hub and shaft are similar to heavy press fits, however, the actual stresses areeasy to calculate; and the hub can always be easily dismantled without damage to it or the shaft; only a torquewrench being required for both assembly and disassembly.Precision transmission of torque with no backlash is obtained with shaft clamping elements, without the need oftight manufacturing tolerances of mating components. Simplified designs can enable manufacturing cost reductions,coupled with easy assembly and disassembly.

Cross Shaft Clamping Elements provide an alternative method of connecting hubs to shafts to:-Tapered BushesHydraulic Clamping SystemsFine-bored Hubs, with Precision keyways and Locking SetscrewsHeavy Press FitsWelded Components

Cross Shaft Clamping Elements offer many advantages:-Easy Assembly - Hub to shaft connection is simple, only a torque wrench being required for

correct assembly.

Easy Disassembly - Just release of locking screws is all that is required on some series, others require simple positive release by tightening screws in jacking holes.

Simplified Manufacture - Parallel boring of hubs with H8 tolerance, or up to H11 on some sizes.

Lower Cost Assemblies - Eliminates costly machining of splines, keyways, and setscrews.

Long Fatigue Life - Elimination of keys prevents failure due to fretting, or notch initiatedcracking under torsional loads.

No Axial Location Required - Hubs can be positioned anywhere on shaft and locked to withstand high axial loads.

High Torque Transmission - Most series will transmit torques equivalent to shaft capacities, and forhigher torques clamping elements can be combined within one shaft/hub connection.

Small Shaft Diameters - Elimination of keyways often enables smaller diameter shafts to be used on many applications.

Freedom from Wear - Lack of moving parts means no wear. Shaft Clamping Elements can betightened and released as often as required with no wear.

Less Maintenance - Correctly assembled, Shaft Clamping Elements require no maintenance. Self locking action of most designs ensures torque transmission even if locking screws should vibrate loose during use.

True Running - Equally distributed friction locking ensures no play and high concentricity.

Shafts Remain Unmarked - Shaft Clamping Elements do not mark shafting ensuring ability of easydisassembly and assembly of components.

Timing of Drives - Infinitely variable angular positioning with simple clamping and release enables simple timing of drives.

Overload Protection - If design load is exceeded the clamping elements will slip on shaft providingprotection to other machine components.

Resistance to Contamination - When fully clamped contact surfaces are tightly pressed together preventingingress of dirt and moisture.

Sealed Joints - Clamping Elements Series RCK 50 can be used to provide fully Gastight Joints, to seal against passage of liquids or gases.

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Cross Shaft Clamping Elements

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In order to make the best selection of a Cross Shaft Clamping Element for your application a number of factors mustbe taken into consideration. These include the shaft diameter; the outside diameter of the hub of connectingcomponent; the drive torque to be transmitted, and axial thrust loads, and tilting or bending loads, maximum shaftspeeds, operating temperature, and general design parameters and space restrictions.

Shaft Diameter:-The shaft diameter will determine the particular size of clamping element in any series, and by reference to thecatalogue details the suitability of that to meet the other parameters can be checked. Also hollow shafts must bechecked for any load carrying strength, see below.

Hub Outside Diameter:-The Hub Diameter has to be sufficient to support the stresses imposed by the shaft clamping element. The cataloguegives maximum hub diameters for medium carbon steel, but for other materials and method of determining referbelow. Generally if hub diameter is over 2.5 times shaft diameter all series are suitable, but for smaller ratios considertypes RCK 80, ACE 81, CCE 54 and CCE55, for very thin walled hubs use clamping discs type RCK 19.

Determination of Minimum Hub Diameter andMax. Hollow Shaft Bore:-The following calculations are for static conditions only, consideringonly stresses imposed by the clamping element. The hub diameter iscontrolled by the pressure applied by the outer cone of the clampingelement; the shape of the hub bore and total length of hub; and yieldstress for permanent elongation of 0.2%.

Minimum Hub Dia. Dm = D � + PhC� – PhC

Where D = Clamping element outside diameter mm� = Yield strength of material N/mm2

Ph = Surface pressure on hub N/mm2

C = Constant for Hub shape - see drawings

The tables in the catalogue give minimum hub diameters for hubsmanufactured in medium carbon steel (080M40 or C45) or other materialwhere � = 320 N/mm2. Values for � on other commonly used hubmaterials are:-

220 Grade Cast Iron � = 150 N/mm2

260 Grade Cast Iron � = 180 N/mm2

Mild Steels � = 220 N/mm2

070M55 (En9) � = 350 N/mm2

Stainless Steel � = 200 N/mm2

Aluminium � = 100 N/mm2

For hollow bored Shafting:-

Max. Bore in Shaft Dm = d � – 1.6 Ps�

Where d = Clamping element bore mmPs = Surface pressure on Shaft N/mm2

For solid shafting yield strength of material � must be higher than surface pressure Ps.

Maximum Shaft Speed:-The centrifugal forces generated by high shaft speeds can reduce torque capacity and increase stress loads on hubs.Consult Cross+Morse if speed of shaft results in outer clamping diameter D running above 25M/sec.

Operating Temperature:-Maximum temperatures should not exceed 100˚C. At temperatures above 70˚C the locking screws should berechecked after 1 hour operation, whilst assembly is still warm.

Hub Assembly Type AC=1.0

Hub Assembly Type BC=0.8

Hub Assembly Type CC=0.6

L1 � Hw � 2L1 L2 � Hw � 2L2

Where Hw = Hub WidthFor Dimensions L1 & L2 ref. Product Pages

Hw � 2L1 Hw � 2L2

Hw � 2L1 (All Types)

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General Design Factors:-Never place a shaft clamping element radically inline with a bearing, as expansion due to clamping could causebearing seizure. To help final selection refer to table below for series selection.

Catalogue Page

RCK

11

RCK

13

RCK

15

RCK

16

RCK

19

RCK

40

RCK

50

CCE

54

CCE

55

RCK

61

RCK

70

RCK

71

RCK

80

RCK

95

RCK

45

ACE

81SERIES

Type of Load

Smooth Light Shock Medium Shock Heavy Shock

4

Shaft Clamping Selection

Drive Torque to be transmitted and Axial Thrust Loads:-The maximum effective torque Te derived from maximum Drive Torque Tm and maximum Axial Thrust Ft mustalways be less than the Torque Capacity M shown in tables for selected shaft clamping element.The maximum Drive Torque Tm must take into consideration any shock loads, and also the maximum starting torqueof drive. If the max. torque is not known, it can be estimated by applying the service factor from the table below tothe nominal drive torque Td, which can be derived from motor power P and shaft speed N r.p.m.

Drive Torque Td = 9550 P Nm Where P = Power kWN N = Shaft Speed rpm

Max. Drive Torque Tm = SF x Td Nm

Axial Thrust loads on shaft clamping elements reduces torque capacity. To determine a clamping elements capabilityto transmit both maximum torque and axial thrust loads the effective torque must be established if any axial loadingexists.

Maximum effective torque Te = Tm2

+ Nm

For correct selectionTorque Capacity M > Te (or Tm): and Axial Force Capacity F > Ft

Tilting or Bending Loads:-Always endeavour to design location of shaft clamping element directly beneath line of driving force on hub, iechain, vee belt etc. If overhang of load or force occurs the torque capacity of the clamping element can be reduced.Under no circumstances should the resultant couple force on the clamping element exceed 0.25M

Selection Factors SF

General Features of Cross Shaft Clamping Elements

Type of Motive Power

a.c. Motor direct start

d.c. Motor/a.c. Motor Invertor Control or Soft Start

Hydraulic or pneumatic motors

Internal combustion engines

3

1.5

1.2

3

3

2

1.5

3.5

3

2.5

2.5

4

4

3

3

5

FEATURE

1)Depends on design.

Ft.d2000

Ft = Max. Axial Load Nd = Shaft Diameter mm( )

2

Torque Capacity

Self Centring

Concentricity Accuracy

Axial Movement in Clamping

Hub Surface Pressures

Self Locking When Clamped

Suitable for Thin Walled Hub

Short Overall Length

Clamps Outside Hub Dia.

Cost of Assembly

HIGH

YES

GOOD

NO

MED

YES

NO

NO

NO

HIGH

16

MED

YES

GOOD

YES

HIGH

YES

NO

YES

NO

MED

6

MED

YES

GOOD

NO

MED

YES

NO

YES

NO

LOW

5

MED

YES

GOOD

NO

MED

YES

NO

YES

NO

MED

7

HIGH

YES

HIGH

NO

N/A

NO

YES

YES

YES

HIGH

19

MED

NO

LOW

NO

MED

NO

NO

YES

NO

LOW

14

MED

YES

GOOD

YES

MED

NO

NO

YES

NO

LOW

15

LOW

YES

LOW

NO1

LOW

NO

YES

YES

NO

LOW

17

LOW

YES

MED

NO1

LOW

YES

YES

YES

NO

LOW

13

MED

YES

MED

NO1

LOW

YES

YES

YES

NO

LOW

13

LOW

YES

GOOD

YES

LOW

YES

NO

YES

NO

LOW

12

MED

YES

HIGH

YES

HIGH

YES

NO

NO

NO

MED

8

MED

YES

GOOD

NO

MED

YES

NO

NO

NO

MED

9

MED

YES

GOOD

NO

LOW

YES

YES

NO

NO

HIGH

10

MED

YES

GOOD

NO

LOW

YES

YES

NO

NO

MED

11

LOW

N/A

MED

NO

N/A

NO

N/A

NO

YES

HIGH

19

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Clamping Elements Type RCK 15

5

Designed for use with standardised ranges of pulleys, sprockets, and gears, theshaft clamping elements can accommodate a large range of shaft diameters witha hub of constant bore diameter. On clamping precise axial and radial position-ing is provided, combined with medium torque transmission capability.

Recommended tolerances for fulltorque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

Cross+Morse can provide standardRoller Chain Sprockets finish bored toaccommodate RCK 15 shaft clampingelements, with ability to fit to eitherhub or sprocket end.

X = Distance required to removescrews, additional clearance for alankey may be required.Dimensions

Part No.

RCK15-14X55RCK15-16X55RCK15-18X55

RCK15-19X55RCK15-20X55RCK15-22X55

RCK15-24X55RCK15-25X55RCK15-28X55

RCK15-30X55RCK15-24X65RCK15-25X65

RCK15-28X65RCK15-30X65RCK15-32X65

RCK15-35X65RCK15-38X65RCK15-40X65

RCK15-30X80RCK15-32X80RCK15-35X80

RCK15-38X80RCK15-40X80RCK15-42X80

RCK15-45X80RCK15-48X80RCK15-50X80

RCK15-40X80HRCK15-45X80HRCK15-50X80H

141618

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252525

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252525

252525

252525

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252525

252525

252525

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372392431

470490549

588617637

725764823

902970

1029

108211551260

137014401510

162017351806

215724222700

393939

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393939

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515151

515151

727272

727272

727272

108108108

458400356

337320290

265255228

213332320

285267250

228210200

315298272

250238226

212198190

340302272

118118118

118118118

118118118

118122122

122122122

122122122

120120120

120120120

120120120

169169169

444

444

444

455

555

555

777

777

777

101010

M8M8M8

M8M8M8

M8M8M8

M8M8M8

M8M8M8

M8M8M8

M8M8M8

M8M8M8

M8M8M8

M8M8M8

414141

414141

414141

414141

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414141

414141

414141

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0.470.470.45

0.440.430.41

0.400.680.63

0.610.580.56

0.530.500.47

1.041.030.98

0.940.910.89

0.830.790.74

0.890.850.78

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109109109

126126126

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696969

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828282

828282

101101101

101101101

101101101

111111111

Dimensions mm

d D L L1 L2 L3 X

TorqueCap.

MNm

AxialForce

FkN

Approx.Weight

kg

ShaftPs

N/mm2

HubPh

N/mm2

No.Assy

Type AAssy

Type BAssy

Type C

Size Torque

Nm

Surface Pressure Clamping Screws Min. Hub Dia* mm

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

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Dimensions

6

Clamping Elements Type RCK 13

These shaft clamping elements are very compact units capable oftransmitting medium torques. Their design ensures good concentricitybetween hubs and shafts, without any other means of location. A slightaxial movement between hub and shaft occurs during clamping. Theseunits can be installed totally within the hub providing optimum safety, andminimal axial length.

Part No.

RCK13-18X47RCK13-19X47RCK13-20X47RCK13-22X47

RCK13-24X50RCK13-25X50RCK13-28X55RCK13-30X55

RCK13-32X60RCK13-35X60RCK13-38X65RCK13-40X65

RCK13-45X75RCK13-50X80RCK13-55X85RCK13-60X90

RCK13-65X95RCK13-70X110RCK13-75X115RCK13-80X120

RCK13-85X125RCK13-90X130RCK13-95X135RCK13-100X145

RCK13-110X155RCK13-120X165RCK13-130X180RCK13-140X190

RCK13-150X200RCK13-160X210RCK13-170X225RCK13-180X235

18192022

24252830

32353840

45505560

65707580

859095

100

110120130140

150160170180

47474747

50505555

60606565

75808590

95110115120

125130135145

155165180190

200210225235

34343434

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34343434

41414141

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56566468

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17171717

17171717

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20242424

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34344444

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25252525

25303030

30303032

32324040

40405050

28282828

28282828

28282828

33333333

33404040

40404044

44445254

54546464

20202020

20202020

20202020

25252525

25303030

30303035

35353540

40404040

350355360400

440560625650

950105011401200

2180243030503350

4080628066807130

84509080

1058013380

14580178802595026950

32950379004490046900

39373636

37454543

59606060

9797

111112

126179178178

199202223268

265298399385

439474528521

280280280268

243280250235

290268252232

285258268243

253278258248

258248258268

238248238208

228228188168

120120120123

120138128128

150150146146

168158173163

173178168168

178168178188

178178168148

168168128128

5555

6666

8888

7788

9888

99

108

89

129

10111212

M6M6M6M6

M6M6M6M6

M6M6M6M6

M8M8M8M8

M8M10M10M10

M10M10M10M12

M12M12M12M14

M14M14M14M14

14141414

14141414

14141414

35353535

35707070

707070

125

125125125190

190190190190

0.270.270.260.25

0.280.270.320.30

0.370.340.410.38

0.630.680.730.78

0.831.331.391.48

1.551.631.702.60

2.803.004.604.90

5.205.507.708.10

70707070

74798484

100100106106

134137156158

174206206215

234233253284

290309323313

358376344359

64646465

68727777

89899595

117121135139

151177180188

202203218241

250266282280

313329313327

59595959

63657070

80808686

104109119123

133156159166

177180191210

219233249253

277291287300

Dimensions mm

d D L L1 L2 L3 X

TorqueCap.

MNm

AxialForce

FkN

Approx.Weight

kg

ShaftPs

N/mm2

HubPh

N/mm2

No.Assy

Type AAssy

Type BAssy

Type C

Size Torque

Nm

Surface Pressure Clamping Screws Min. Hub Dia* mm

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

Recommended tolerances for fulltorque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

X = Distance required to removescrews, additional clearance for alankey may be required.

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Clamping Elements Type RCK 16

7

These clamping elements are basically to same design as RCK 13, but withincreased diameter flange to locate hub and prevent axial movements, socombining good concentricity with positive axial location. The increase infriction between the cones due to axial restriction results in torquereduction of approx 20%, but this also means reduced surface pressures toboth hub and shaft.

Dimensions

Part No.

RCK16-18X47RCK16-19X47RCK16-20X47RCK16-22X47

RCK16-24X50RCK16-25X50RCK16-28X55RCK16-30X55

RCK16-32X60RCK16-35X60RCK16-38X65RCK16-40X65

RCK16-45X75RCK16-50X80RCK16-55X85RCK16-60X90

RCK16-65X95RCK16-70X110RCK16-75X115RCK16-80X120

RCK16-85X125RCK16-90X130RCK16-95X135RCK16-100X145

RCK16-110X155RCK16-120X165RCK16-130X180RCK16-140X190

RCK16-150X200RCK16-160X210RCK16-170X225RCK16-180X235

18192022

24252830

32353840

45505560

65707580

859095

100

110120130140

150160170180

47474747

50505555

60606565

75808590

95110115120

125130135145

155165180190

200210225235

34343434

34343434

34343434

41414141

41505050

50505056

56566468

68687878

17171717

17171717

17171717

20202020

20242424

24242426

26263434

34344444

22222222

22222222

22222222

25252525

25303030

30303032

32324040

40405050

28282828

28282828

28282828

33333333

33404040

40404044

44445254

54546464

20202020

20202020

20202020

25252525

25303030

30303035

35353540

40404040

264274284314

401441490529

755824892941

1716189324032648

3188490551505490

662069608190

10100

11030136001900021800

25600302003500037000

29292829

33353535

47474747

76768788

98140137137

156155172202

201227292311

341378412411

215215215196

215210196186

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225205210186

196215195185

195185195205

190205186177

185185147142

93939393

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9898

112107112102

132127132122

132137127122

132127137145

135142137127

137140110108

5555

6666

8888

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9888

99

108

89

129

10111212

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M6M6M6M6

M6M6M6M6

M8M8M8M8

M8M10M10M10

M10M10M10M12

M12M12M12M14

M14M14M14M14

17171717

17171717

17171717

41414141

41838383

838383

145

145145145230

230230230230

0.280.270.260.25

0.280.270.350.32

0.380.350.410.39

0.650.690.750.80

0.851.351.421.51

1.581.661.732.64

2.843.054.704.95

5.305.607.908.30

63636363

71717575

86859490

116122132134

147174175179

194198213236

243266284289

316336322334

60606060

66667171

80798784

106111120123

134157160164

176181193212

220239257264

286303298310

56565656

61616666

74748079

97102109114

122143147151

161166176192

201217234242

260275277289

Dimensions mm

d D L L1 L2 L3 X

TorqueCap.

MNm

AxialForce

FkN

Approx.Weight

kg

ShaftPs

N/mm2

HubPh

N/mm2

No.Assy

Type AAssy

Type BAssy

Type C

Size Torque

Nm

Surface Pressure Clamping Screws Min. Hub Dia* mm

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

Recommended tolerances for fulltorque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

X = Distance required to removescrews, additional clearance for alankey may be required.

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8

Clamping Elements Type RCK 70

These shaft clamping elements are designed to give optimum concentricity,both radically and axially. Similar in design to the RCK 13, but withincreased length to provide improved support, and reduced pressures onboth shaft and hub. These units must always be installed inside the hub toensure optimum concentricity. Axial movement of hub will occur duringclamping operation.

Dimensions

Part No.

RCK70-19X47RCK70-20X47RCK70-22X47RCK70-24X50

RCK70-25X50RCK70-28X55RCK70-30X55RCK70-32X60

RCK70-35X60RCK70-38X65RCK70-40X65RCK70-42X75

RCK70-45X75RCK70-48X80RCK70-50X80RCK70-55X85

RCK70-60X90RCK70-65X95RCK70-70X110RCK70-75X115

RCK70-80X120RCK70-85X125RCK70-90X130RCK70-95X135

RCK70-100X145RCK70-110X155RCK70-120X165RCK70-130X180

RCK70-140X190RCK70-150X200RCK70-160X210RCK70-170X225RCK70-180X235

19202224

25283032

35384042

4548 5055

60657075

80859095

100110120130

140150160170180

47474750

50555560

60656575

75808085

9095

110115

120125130135

145155165180

190200210225235

45454545

45454545

45454555

55555555

55556772

72727272

89898989

9090909090

26262626

26262626

26262630

30303030

30304040

40404040

46464646

5151515151

31313131

31313131

31313136

36363636

36364646

46464646

52525252

5959595959

39393939

39393939

39393947

47474747

47475762

62626262

77777777

8484848484

25252525

25252525

25252530

30303030

30303535

35353535

45454545

4545454545

403443510607

689826865

1129

1177145115372314

2657277530113729

3949497081288694

9458111671197013950

18295201442634528135

3617743476494664445248901

42444651

55595871

677677

110

118116120136

132153232232

236263266294

366366439433

517580618523543

228226215215

225215196225

196205196232

232213213218

194208220205

196205196205

211192211192

192201201160157

989893

102

102107117111

116121122137

137132132142

153137140135

127142135145

145136152137

142150150120117

4446

6668

8886

6668

8888

8101010

88

1012

810101212

M6M6M6M6

M6M6M6M6

M6M6M6M8

M8M8M8M8

M8M8

M10M10

M10M10M10M10

M12M12M12M12

M14M14M14M14M14

17171717

17171717

17171741

41414141

41418383

83838383

145145145145

230230230230230

0.380.370.360.39

0.380.450.420.52

0.480.570.540.91

0.891.000.951.02

1.111.192.202.53

2.662.792.933.06

4.544.925.285.52

7.257.658.168.759.35

64646370

70788186

889797

119

119124124137

151150176180

183201204220

236244277284

306333349334345

60606065

65727480

818989

107

107113113123

135136159163

167181185197

212221246257

275297311307318

57575661

61676974

75828298

98103103112

121124144149

153164168178

192201221234

250267280283294

Dimensions mm

d D L L1 L2 L3 X

TorqueCap.

MNm

AxialForce

FkN

Approx.Weight

kg

ShaftPs

N/mm2

HubPh

N/mm2

No.Assy

Type AAssy

Type BAssy

Type C

Size Torque

Nm

Surface Pressure Clamping Screws Min. Hub Dia* mm

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

Recommended tolerances for fulltorque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

X = Distance required to removescrews, additional clearance for alankey may be required.

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CD Contents Catalogue Selection INDEX

Clamping Elements Type RCK 71

9

The RCK 71 is a type RCK 70 with addition of a distance ring to preventaxial movement of the hub during clamping. Due to the additional frictionbetween the element and hub during clamping maximum torques arereduced, but with reduction in surface pressures also. This design can bemounted within the confines of a hub providing a stepped bore is providedto accommodate the flange.

Dimensions

Part No.

RCK71-19X47RCK71-20X47RCK71-22X47RCK71-24X50

RCK71-25X50RCK71-28X55RCK71-30X55RCK71-32X60

RCK71-35X60RCK71-38X65RCK71-40X65RCK71-42X75

RCK71-45X75RCK71-48X80RCK71-50X80RCK71-55X85

RCK71-60X90RCK71-65X95RCK71-70X110RCK71-75X115

RCK71-80X120RCK71-85X125RCK71-90X130RCK71-95X135

RCK71-100X145RCK71-110X155RCK71-120X165RCK71-130X180

RCK71-140X190RCK71-150X200RCK71-160X210RCK71-170X225RCK71-180X235

19202224

25283032

35384042

4548 5055

60657075

80859095

100110120130

140150160170180

47474750

50555560

60656575

75808085

9095

110115

120125130135

145155165180

190200210225235

45454545

45454545

45454555

55555555

55556772

72727272

89898989

9090909090

26262626

26262626

26262630

30303030

30304040

40404040

46464646

5151515151

31313131

31313131

31313136

36363636

36364646

46464646

52525252

5959595959

39393939

39393939

39393947

47474747

47475762

62626262

77777777

8484848484

25252525

25252525

25252530

30303030

30303535

35353535

45454545

4545454545

294313362421

470578637784

843101011081892

1912213721672677

2853350057176207

670780028502

10002

13336145821908320417

2492030130325203335033600

31313335

38414249

48535590

85898797

95108163166

168188189211

267265318314

356402407392373

228226206206

221202221197

202197234216

216221221221

197206221216

198216197187

197197216198

188198198158154

969697

100

110105118114

118121143135

135142143143

131142142148

139157143138

148178158143

138149149119119

4446

6668

8886

6668

8888

8101010

88

1012

810101212

M6M6M6M6

M6M6M6M6

M6M6M6M8

M8M8M8M8

M8M8

M10M10

M10M10M10M10

M12M12M12M12

M14M14M14M14M14

17171717

17171717

17171741

41414141

41418383

83838383

145145145145

230230230230230

0.390.380.370.41

0.400.480.450.56

0.520.620.590.97

0.951.071.021.09

1.191.272.032.65

2.782.923.073.21

4.805.205.585.86

7.628.048.569.199.83

64646469

72778187

8897

105118

118129129137

139153177190

191214210214

239290283291

301331348333347

60606065

66727580

818994

107

107116116124

126138159170

172189189193

214250251262

272296311306319

56565660

62676975

75828697

97105105112

116125145153

157169171176

193219224237

248266280282295

Dimensions mm

d D L L1 L2 L3 X

TorqueCap.

MNm

AxialForce

FkN

Approx.Weight

kg

ShaftPs

N/mm2

HubPh

N/mm2

No.Assy

Type AAssy

Type BAssy

Type C

Size Torque

Nm

Surface Pressure Clamping Screws Min. Hub Dia* mm

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

Recommended tolerances for fulltorque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

X = Distance required to removescrews, additional clearance for alankey may be required.

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CD Contents Catalogue Selection INDEX

1820202024

242931313636

37384045

45505257

5861646674

76798490

97108112123129

136147160178197

1822212126

253033334040

40414248

48545561

6164676978

80838893

100113117129135

143155170189209

0.040.050.070.060.09

0.080.180.220.210.210.24

0.250.260.350.36

0.400.420.440.46

0.570.600.660.711.14

1.401.582.002.30

2.502.833.103.273.50

3.804.204.905.806.60

M3M4M4M4M4

M4M4M6M6M6M6

M6M6M6M6

M6M6M6M6

M6M6M6M6M8

M8M8M8M8

M8M10M10M10M10

M10M10M10M12M12

2.25555

55

17171717

17171717

17171717

1717171741

41414141

4183838383

838383

145145

801108585

105

100809898

125125

12011580102

1029890

108

8076727085

80756560

5570658075

7580959393

33334

444444

4446

6668

88888

8899

999

1212

1214181212

187206151136172

150131157147191181

171161116145

139137123145

107100

9592

111

103988477

719082

10094

93101119118120

47779

91023232422

22222333

33333444

4141384176

76768686

86136136181181

181227296291290

22.525.527.527.527.5

27.527.536.536.539.539.5

39.539.546.546.5

46.546.546.546.5

52.552.552.552.571.0

71.071.081.081.0

81.096.596.596.596.5

96.596.596.5128128

10.012.014.014.014.0

14.014.016.016.019.019.0

19.019.026.026.0

26.025.525.525.5

31.531.531.531.545.0

45.045.055.055.0

55.065.065.065.065.0

65.065.065.090.090.0

18.521.523.523.523.5

23.523.529.529.532.532.5

32.532.539.539.5

39.539.539.539.5

45.545.545.545.562.5

62.562.572.572.5

72.586.586.586.586.5

86.586.586.586.586.5

2527282832

323945454747

49505456

56616265

6972757886

879298

104

111119126131137

144149154180198

25.529.531.531.531.5

31.531.542.542.545.545.5

45.545.552.552.5

52.552.552.552.5

58.558.558.558.579.0

79.079.089.089.0

89.0106.5106.5106.5106.5

106.5106.5106.5140.0140.0

2324252528

283540404242

43444850

50555759

6266697180

81869298

105113119125131

137142147172190

689

1011

121415161718

19202224

25283032

3538404245

48505560

6570758085

9095

100110120

1415161618

182324242626

27283234

34394143

4750535559

62657177

849095

100106

112120125140155

10

Clamping Elements Type RCK 80

Available for shaft diameters down to 6mm, these shaft clamping elementsare designed to fit into small diameter hubs, being particularly suited tolight duty, light torque applications. A spacer ring prevents axial movementduring clamping; and design ensures good levels of concentricity.For correct operation of these units, the hub diameter should not be lessthan the flange diameter D2, even though with many materials stress limitswould allow selection of smaller hub diameters.

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3. For unit to function correctly hub diameter should not be less thanflange outside diameter D2.For assembly and disassembly instructions refer to page 20.

Dimensions

Part No.

RCK80-6X14RCK80-8X15RCK80-9X16RCK80-10X16RCK80-11X18

RCK80-12X18RCK80-14X23RCK80-15X24RCK80-16X24RCK80-17X26RCK80-18X26

RCK80-19X27RCK80-20X28RCK80-22X32RCK80-24X34

RCK80-25X34RCK80-28X39RCK80-30X41RCK80-32X43

RCK80-35X47RCK80-38X50RCK80-40X53RCK80-42X55RCK80-45X59

RCK80-48X62RCK80-50X65RCK80-55X71RCK80-60X77

RCK80-65X84RCK80-70X90RCK80-75X95RCK80-80X100RCK80-85X106

RCK80-90X112RCK80-95X120RCK80-100X125RCK80-110X140RCK80-120X155

1012121212

121218181818

18181818

18181818

1818181822

22222222

2225252525

2525253030

1228313551

5669

170180200200

210219250392

411460510701

720781768863

1711

1824190223532569

27864755510072507700

816010800148001600017400

1719191922

222729293333

34353842

42474953

5558616370

73758187

94103108117123

129140150167185

Dimensions mm

d D L L1D1 L2D2 L3 X

TorqueCap.

MNm

AxialForce

FkN

ApproxWeight

kg

ShaftPs

N/mm2

HubPh

N/mm2

No.Assy

Type AAssy

Type BAssy

Type C

Size Torque

Nm

Surface Press. Clamping Screws Min. Hub Dia* mm

Recommended tolerances for fulltorque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

X = Distance required to removescrews, additional clearance for alankey may be required.

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ACE81-11X26ACE81-12X26ACE81-14X26ACE81-15X26ACE81-16X26ACE81-18X26ACE81-19X26ACE81-20X26ACE81-19X38ACE81-20X38ACE81-22X38ACE81-24X38ACE81-25X38ACE81-28X38ACE81-30X38ACE81-19X38HACE81-20X38HACE81-22X38HACE81-24X38HACE81-25X38HACE81-28X38HACE81-30X38HACE81-24X52ACE81-25X52ACE81-28X52ACE81-30X52ACE81-32X52ACE81-35X52ACE81-38X52ACE81-40X52ACE81-42X52ACE81-28X72ACE81-30X72ACE81-32X72ACE81-35X72ACE81-38X72ACE81-40X72ACE81-42X72ACE81-45X72ACE81-48X72ACE81-50X72ACE81-55X72ACE81-60X72

11

Clamping Elements Type ACE 81

Available for shaft diameters down to 11mm, these shaft clamping elementsare designed to fit into very small diameter hubs, being particularly suited toTiming pulley and overload clutch applications. A spacer ring prevents axialmovement during clamping; and design ensures good levels of concentricity.For correct operation of these units, the hub diameter should not be less thanthe flange diameter D2, even though with many materials stress limits wouldallow selection of smaller hub diameters.

Dimensions

Part No.Dimensions mm

d D L L1D1 L2D2 L3 X

TorqueCap.

MNm

AxialForce

FkN

ApproxWeight

kg

ShaftPs

N/mm2

HubPh

N/mm2

No.Assy

Type AAssy

Type BAssy

Type C

Size Torque

Nm

Surface Press. Clamping Screws Min. Hub Dia* mm

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3. For unit to function correctly hub diameter should not be less thanflange outside diameter D2.For assembly and disassembly instructions refer to page 20.

Recommended tolerances for fulltorque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

X = Distance required to removescrews, additional clearance for alankey may be required.

11121415161819201920222425283019202224252830242528303235384042283032353840424548505560

26262626262626263838383838383838383838383838525252525252525252727272727272727272727272

40.540.540.540.540.540.540.540.5575757575757575757575757575770.570.570.570.570.570.570.570.570.596.596.596.596.596.596.596.596.596.596.596.596.5

31.531.531.531.531.531.531.531.5393939393939395252525252525252525252525252525268.068.068.068.068.068.068.068.068.068.068.068.0

14.014.014.014.014.014.014.014.014.014.014.014.014.014.014.02727272727272727272727272727272737.037.037.037.037.037.037.037.037.037.037.037.0

27.527.527.527.527.527.527.527.53333333333333346464646464646464646464646464646606060606060606060606060

12121212121212121818181818181818181818181818181818181818181818222222222222222222222222

8087

102109116131138145210220242265276309331314331364397413465497529552618662706772839883926

146215671671182819852089219423502506261128723133

14.514.514.514.514.514.514.514.52222222222222233333333333333444444444444444444

104104104104104104104104104104104104

236.4216.7185.7173.3162.5144.4136.8130208197.6179.6164.7158.1141.1131.7162153.9139.9128.3123.1109.9102.6171.2164.3146.7136.9128.4117.4108.1102.797.81254.6237.6222.8203.7187.6178.2169.7158.4148.5142.6129.6118.8

10010010010010010010010010410410410410410410481818181818181797979797979797979999999999999999999999999

6666666644444446666666888888888

101010101010101010101010

M4M4M4M4M4M4M4M4M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M6M8M8M8M8M8M8M8M8M8M8M8M8

55555555

1717171717171717171717171717171717171717171717414141414141414141414141

0.220.220.220.220.220.220.220.220.320.320.320.320.320.320.320.400.400.400.400.400.400.400.600.600.600.600.600.600.600.600.601.501.501.501.501.501.501.501.501.501.501.501.50

36363636363636365454545454545450505050505050676767676767676767

100100100100100100100100100100100100

34343434343434345050505050505047474747474747646464646464646464939393939393939393939393

32323232323232324747474747474745454545454545616161616161616161878787878787878787878787

37.537.537.537.537.537.537.537.553.053.053.053.053.053.053.053.053.053.053.053.053.053.066.566.566.566.566.566.566.566.566.591.591.591.591.591.591.591.591.591.591.591.591.5

14.014.014.014.014.014.014.014.014.014.014.014.014.014.014.02727272727272727272727272727272737.037.037.037.037.037.037.037.037.037.037.037.0

22.522.522.522.522.522.522.522.526.026.026.026.026.026.026.039.039.039.039.039.039.039.039.039.039.039.039.039.039.039.039.0525252525252525252525252

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Te

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15

5 F

ax

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21

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Clamping ScrewsSize

Surface Press.HubPh

N/mm2

ShaftPs

N/mm2XL1

1012

141516

181920

222425

2022

262832

353538

404747

1313

171717

212121

212626

1212

161616

202020

202525

1520

354070

8085

220

240380390

33

559

99

22

223231

11092

10293

130

117111219

200215207

5550

555065

6060

115

110110110

44

444

446

666

M2.5M2.5

M3M3M4

M4M4M5

M5M6M6

1.21.2

2.12.14.9

4.94.99.7

9.716.216.2

M2.5M2.5

M3M3M4

M4M4M5

M5M6M6

22

222

223

333

0.080.09

0.120.130.15

0.200.190.21

0.220.310.30

2426

313339

424255

576767

2325

303238

414151

536262

2224

293136

393947

495858

15.515.5

202021

252526

263232

12

Clamping Elements Type RCK 61

Available for shaft diameters from 10mm, these clamping elements aredesigned for small low torque applications, providing concentric connectionof components to shafting. The thin wall design combined with low hubpressures enable use within small hub diameters. The design is intendedthat the units fit totally within the hub bore to provide safe surface. Some axial movement will occur when the units are clamped.

Dimensions

Part No.

RCK61-10X20RCK61-12X22

RCK61-14X26RCK61-15X28RCK61-16X32

RCK61-18X35RCK61-19X35RCK61-20X38

RCK61-22X40RCK61-24X47RCK61-25X47

Dimensions mm

d D L

TorqueCap.

MNm

AxialForce

FkN

ApproxWeight

kg

ExtractionScrewsNo.

No. AssyType A

AssyType B

AssyType C

SizeTorque

Nm

Min. Hub Dia* mm

Recommended tolerances for fulltorque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

X = Distance required to removescrews, additional clearance for alankey may be required.

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

ØD

Ød

L

L1X

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14

1516181920

24252830

323540455060

14151618

19202425

28303235

40455060

25

2525303030

35354040

454550556070

25252530

30303535

40404545

50556070

32

3232383838

45455252

585865707585

32323238

38384545

52525858

65707585

16.5

16.516.517.017.017.0

17.017.020.020.0

22.022.023.025.525.529.5

29292931

31313535

35354242

44454652

6.5

6.56.57.07.07.0

7.07.08.08.0

9.09.09.0

10.010.012.0

17171718

18182222

22222828

28282828

37

4042656070

100110140170

210230330440530830

90100

80200

170130270200

460300420460

640760930

1500

5

55767

89

1011

131317202128

13131022

18132316

33202626

32343750

130

122114133111120

117126100107

113103113110108

93

143133

94183

14290

11784

157939877

88737282

73

7373807080

80907080

808090909080

808060

110

90608060

110707060

70606070

KM4

KM4KM4KM5KM5KM5

KM6KM6KM7KM7

KM8KM8KM9

KM10KM11KM13

KM4KM4KM4KM5

KM5KM5KM6KM6

KM7KM7KM8KM8

KM9KM10KM11KM13

M20

M20M20M25M25M25

M30M30M35M35

M40M40M45M50M55M65

M20M20M20M25

M25M25M30M30

M35M35M40M40

M45M50M55M65

65

65658595

110

155160200240

320320440550660900

909070

190

150110230170

390240320320

440550660

1050

32

3232393739

45475052

585867738090

32323043

40364542

57505654

62667387

30

3030373637

43444849

555563697586

31312940

38354341

53485452

60647084

29

2929353435

41424647

525259657181

29292837

36344139

49465150

57626780

CCE54-14X25

CCE54-15X25CCE54-16X25CCE54-18X30CCE54-19X30CCE54-20X30

CCE54-24X35CCE54-25X35CCE54-28X40CCE54-30X40

CCE54-32X45CCE54-35X45CCE54-40X50CCE54-45X55CCE54-50X60CCE54-60X70

CCE55-14X25CCE55-15X25CCE55-16X25CCE55-18X30

CCE55-19X30CCE55-20X30CCE55-24X35CCE55-25X35

CCE55-28X40CCE55-30X40CCE55-32X45CCE55-35X45

CCE55-40X50CCE55-45X55CCE55-50X60CCE55-60X70

Locking NutThread

Surface Press.HubPh

N/mm2

ShaftPs

N/mm2L L1

13

Clamping Elements TypesCCE 54 and CCE 55

These clamping elements use a single lock nut to apply the clamping pressure, thereby enabling quick assembly and removal. The lock nut canbe secured in postition by bending over a tab of lock washer. The thin wallsof the clamping cones, combined with low hub pressures enables use withsoft materials, such as aluminium, and small hub diameters.

Dimensions

Part No.Dimensions mm

d D E

TorqueCap.

MNm

AxialForce

FkN

TypeAssy

Type AAssy

Type BAssy

Type C

Torque

Nm

Min. Hub Dia* mm

Use type CCE 54 where axial space is restricted and torque is low.

Type CCE 55 is for higher torque transmission.

Recommended tolerances for full torque transmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

L

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*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3. For assembly and disassembly instructions refer to page 20.† Clamping Rings for shafts diameters up to 400mm available to order.

X

1819202224

2528303235

3840424548

5055606570

7580859095

100110120130140

150160170180190

200220240260280

4747474750

5055556060

6565757580

80859095

110

115120125130135

145155165180190

200210225235250

260285305325355

2020202020

2020202020

2020202424

2424242428

2828282828

3333333838

3838444452

5256565666

1717171717

1717171717

1717172020

2020202024

2424242424

2626263434

3434383846

4650505060

2828282828

2828282828

2828283434

3434343440

4040404040

4747475252

5252606068

6874747489

1818181818

1818181818

1818182222

2222222225

2525252525

3030303535

3535404045

4550505060

250265280310370

390490520680710

880930

158016201690

17702260245030404560

48205130623065207770

946010490129451736020650

2381527615323703727045810

516006680093200

114500141000

2828282831

3135354341

4647757270

71828294

130

129128147145164

189191216267295

318345381414482

516607777881

1007

235235208192192

187153173205180

176176235206186

187196177188206

191177191176191

193176182163163

166166157163148

148148178188165

9292929294

949494

105105

108108123123108

113127120128127

124120127122133

133122133113123

122127118123113

113113140150130

88889

910101212

1414121212

1214141614

1414161618

1414162022

2426222428

3026283026

M5M6M6M6M6

M6M6M6M6M6

M6M6M8M8M8

M8M8M8M8

M10

M10M10M10M10M10

M12M12M12M12M12

M12M12M14M14M14

M14M16M16M16M18

1515151515

1515151515

1515153737

373737377070

70707070

127

127127127127

127127195195195

195290290290410

M8M8M8M8M8

M8M8M8M8M8

M8M8M8

M10M10

M10M10M10M10M12

M12M12M12M12M12

M14M14M14M14M14

M14M14M16M16M16

M16M18M18M18M20

22223

34444

44444

44444

44444

44444

44444

54444

0.260.250.240.230.26

0.250.300.290.340.32

0.360.340.600.570.63

0.600.630.690.731.26

1.331.401.491.531.62

2.012.152.353.513.85

4.074.305.786.058.25

8.6511.2512.2513.2517.00

6363636368

6874748484

9292

112112114

116129133145167

173178190194210

226232257260285

299320331352362

376412488540546

5959595964

6470707979

8686

103103106

107118123132153

158164174178191

205212233241261

274292305323334

348381440482497

5656565660

6066667373

8080959598

99108113121140

146151159164174

187196213223240

252268282297310

322353399434455

14

Clamping Elements Type RCK 40

These are the original type of shaft clamping elements, proven in a widerange of applications for more than 20 years. Suited to more generalapplications, this series provides medium torque transmission, which can beincreased by mounting the unit in series. This type does not provide selfcentring, and therefore other methods of centring the hub to the shaft arerequired. The units do not move axially during clamping and generally self-release when clamping screws are relaxed.

Dimensions

Part No. †

RCK40-18X47RCK40-19X47RCK40-20X47RCK40-22X47RCK40-24X50

RCK40-25X50RCK40-28X55RCK40-30X55RCK40-32X60RCK40-35X60

RCK40-38X65RCK40-40X65RCK40-42X75RCK40-45X75RCK40-48X80

RCK40-50X80RCK40-55X85RCK40-60X90RCK40-65X95RCK40-70X110

RCK40-75X115RCK40-80X120RCK40-85X125RCK40-90X130RCK40-95X135

RCK40-100X145RCK40-110X155RCK40-120X165RCK40-130X180RCK40-140X190

RCK40-150X200RCK40-160X210RCK40-170X225RCK40-180X235RCK40-190X250

RCK40-200X260RCK40-220X285RCK40-240X305RCK40-260X325RCK40-280X355

Dimensions mm

d D L L1 H

TorqueCap.

MNm

AxialForce

FkN

ApproxWeight

kg

ExtractionScrewsShaft

PsN/mm2

HubPh

N/mm2

No.No. Assy

Type AAssy

Type C

SizeSize

Torque

Nm

Surface Press. Clamping Screws Min. Hub Dia* mm

Recommended tolerances for full torquetransmission are:-

Shaft h9Hub H9

As both cones are split larger tolerances,up to h11/H11 can be accommodated, butwith a reduction in torque capacity.Clamping surfaces to be finished to≤ 15 µm.

If two or more elements are used in seriesthe resultant torque will be proportionallyincreased. However the minimum hub dia.must be increased to accommodate theextra stress.

X = Distance required to removescrews, additional clearance for alankey may be required.

AssyType B

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*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

16181920

242528

303538

404245

485055

607080

15

Clamping Elements Type RCK 45

These clamping elements provide good torque transmission from a compact, low cost assembly. These units must always be installed inside the hub, and will then provide a reasonable level of concentricity.A small axial movement of the hub occurs during clamping.

Dimensions

Part No. Dimensions mm

d D L L1 H X

TorqueCap.

MNm

AxialForce

FkN

ApproxWeight

kg

ExtractionScrewsShaft

PsN/mm2

HubPh

N/mm2

No.No. Assy

Type AAssy

Type BAssy

Type C

SizeSize

Torque

Nm

Surface Press. Clamping Screws Min. Hub Dia* mm

Recommended tolerances for full torquetransmission are:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

X = Distance required to removescrews, additional clearance for alankey may be required.

RCK45-16X32RCK45-18X40RCK45-19X41RCK45-20X42

RCK45-24X46RCK45-25X47RCK45-28X50

RCK45-30X52RCK45-35X57RCK45-38X60

RCK45-40X62RCK45-42X70RCK45-45X73

RCK45-48X76RCK45-50X78RCK45-55X83

RCK45-60X88RCK45-70X105RCK45-80X115

32404142

464750

525760

627073

767883

88105115

11121212

121212

121515

151818

181818

182222

222424.524.5

24.524.524.5

24.52828

283636

363636

364545

12151515

151515

151515

152222

222222

222525

80180210240

290330370

430610680

78014801500

155016502000

235039004800

10202224

242626

293536

397067

656673

78111120

260260260250

250230220

210170170

170190210

210190190

190180170

120120120120

120120120

120100100

100110130

130120120

120120120

6666

688

81212

121212

121216

161216

M4M6M6M6

M6M6M6

M6M6M6

M6M8M8

M8M8M8

M8M10M10

5161616

161616

161616

164141

414141

417070

M4M6M8M8

M8M8M8

M8M8M8

M8M10M10

M10M10M10

M10M12M12

2222

222

233

333

334

434

0.150.180.200.20

0.230.240.24

0.270.280.30

0.310.500.53

0.590.620.64

0.691.251.40

47596162

687074

777983

86100112

117116123

131156171

44555657

636468

717477

8093

102

106106113

120143157

40505253

585963

656973

758694

9798

104

111132145

ØD

Ød

H

L

L1

X

171818.518.5

18.518.518.5

18.52222

222828

282828

283535

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Clamping Elements Type RCK 11

16

These shaft clamping elements provide maximum torque transmission froma single unit, but, due to their large clamping surfaces clamping pressuresare kept to reasonable levels. The design enables automatic centringbetween shaft and hub, and axial positioning of the hub does not changeduring clamping. Suitable for applications with high bending loads.

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

Dimensions

Part No.

RCK11-25X55RCK11-28X55RCK11-30X55RCK11-35X60RCK11-38X75

RCK11-40X75RCK11-42X75RCK11-45X75RCK11-48X80RCK11-50X80

RCK11-55X85RCK11-60X90RCK11-65X95RCK11-70X110RCK11-75X115

RCK11-80X120RCK11-85X125RCK11-90X130RCK11-95X135RCK11-100X145

RCK11-110X155RCK11-120X165RCK11-130X180RCK11-140X190

RCK11-150X200RCK11-160X210RCK11-170X225RCK11-180X235

RCK11-190X250RCK11-200X260RCK11-220X285RCK11-240X305RCK11-260X325RCK11-280X355RCK11-300X375

2528303538

4042454850

5560657075

80859095

100

110120130140

150160170180

190200220240260280300

5555556075

7575758080

859095

110115

120125130135145

155165180190

200210225235

250260285305325355375

4646466062

6262626272

7272728888

88888888

112

112112130130

130130164164

164164164164164197197

3232324444

4444444456

5656567070

7070707090

9090

104104

104104134134

134134134134134165165

4040405454

5454545464

6464647878

78787878

100

100100116116

116116148148

148148148148148177177

3535354550

5050505050

5050506060

6060606080

80809090

9090

110110

110110110110110130130

784882931

12742696

28432981319638734069

505060806619

1127712062

1421915102174551833825791

31184396185050363470

7279082890

106000120900

131250143220177560213850245250353160419860

63636273

142

142142142161163

184203204322322

355355388386516

567660777907

971103612471343

1382143216141782188725232799

291259243161289

276262246203196

201198183218218

210210203203196

194207188204

204204178180

182173184180174181188

99999985

113

113113113

9696

101103

98111111

112112112112104

107117109121

124125110112

113110112116114115120

66677

77788

910101010

1112121211

12141214

15161415

16161820211820

M6M6M6M6M8

M8M8M8M8M8

M8M8M8

M10M10

M10M10M10M10M12

M12M12M14M14

M14M14M16M16

M16M16M16M16M16M20M20

M6M6M6M6M8

M8M8M8M8M8

M8M8M8M10M10

M10M10M10M10M12

M12M12M14M14

M14M14M16M16

M16M16M16M16M16M20M20

33333

33333

34444

45554

5557

6767

7789

1089

0.390.370.350.621.02

0.960.910.891.101.30

1.401.501.603.003.20

3.503.703.904.106.00

7.007.80

10.0011.00

12.0013.0018.0020.00

22.0024.0027.0030.0033.0048.0052.00

76767679

108

108108108109109

118126130158165

173180187195203

219242257283

301317322339

362372411446472517556

71717174

100

100100100102102

110117122146153

160167173180189

204223238260

276290298313

334345380411436477511

6666667093

9393939696

103109114136142

149155161167177

190206221239

253267277291

310321353380404442471

1717171741

4141414141

4141418383

83838383

145

145145230230

230230355355

355355355355355690690

Dimensions mm

d D L L1 L2 X

TorqueCap.

MNm

AxialForce

FkN

ApproxWeight

kg

ExtractionScrewsShaft

PsN/mm2

HubPh

N/mm2

No.No. Assy

Type AAssy

Type BAssy

Type C

SizeSize

Torque

Nm

Surface Press. Clamping Screws Min. Hub Dia* mm

Recommended tolerances for fulltorque transmission both shaft andhub should be within the followingtolerances:-

Shaft h8Hub H8

Clamping surfaces to be finished to≤ 15 µm.

These units ideal for mounting ofwheels and belt conveyor pulleys.

X = Distance required to removescrews, additional clearance for alankey may be required.

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RCK50-6X9RCK50-7X10RCK50-8X11RCK50-9X12

RCK50-10X13RCK50-12X15RCK50-13X16RCK50-14X18

RCK50-15X19RCK50-16X20RCK50-17X21RCK50-18X22

RCK50-19X24RCK50-20X25RCK50-22X26RCK50-24X28

RCK50-25X30RCK50-28X32RCK50-30X35RCK50-32X36

RCK50-35X40RCK50-36X42RCK50-38X44RCK50-40X45

RCK50-42X48RCK50-45X52RCK50-48X55RCK50-50X57

RCK50-55X62RCK50-56X24RCK50-60X68RCK50-63X71

RCK50-65X73RCK50-70X79RCK50-71X80RCK50-75X84RCK50-80X91

6789

10121314

15161718

19202224

25283032

35363840

42454850

55566063

6570717580

9101112

13151618

19202122

24252628

30323536

40424445

48525557

62646871

7379808491

4.54.54.54.5

4.54.54.56.3

6.36.36.36.3

6.36.36.36.3

6.36.36.36.3

7778

8101010

10121212

1214141417

3.73.73.73.7

3.73.73.75.3

5.35.35.35.3

5.35.35.35.3

5.35.35.35.3

6.06.06.06.6

6.68.68.68.6

8.610.410.410.4

10.412.212.212.214.8

2.43.04.77.9

9.511.413.122.3

24.327.329.832.4

49.053.066.073.0

72.086.091.0

131.0

171.0169.0181.0231.0

235.0390.0572.0602.0

670.0790.0860.0945.0

10001300134015002100

0.80.91.21.8

1.91.92.03.2

3.23.43.53.6

5.25.36.06.1

5.86.16.18.2

9.89.49.5

11.6

11.219.023.824.1

24.428.228.730.0

30.837.137.740.052.5

115105120140

135115110115

110105105100

140135135130

115115100130

125115110115

110116155150

140130125125

125125125125125

757090

105

105909090

85858580

110105115110

95100

85115

110100

95105

95105135130

125115110110

110110110110110

1.21.41.51.7

1.82.22.34.9

5.35.55.86.1

7.88.27.38.0

10.19.2

12.010.0

17.020.021.023.0

28.042.045.047.0

50.067.072.076.0

78110114118187

11.512.514.716.9

18.320.121.424.1

25.026.327.628.5

34.435.237.940.1

40.844.346.052.5

57.358.159.863.3

65.273.286.387.8

93.793.397.4

101.6

104.5113.1114.5120.2130.3

10.912.013.915.8

17.118.920.222.7

23.624.926.127.1

31.932.835.037.2

38.341.443.548.4

53.154.356.158.9

61.268.178.279.9

85.786.190.294.2

96.9104.8106.1111.4120.7

3.83.95.3

15.6

15.615.615.625.4

25.425.425.425.4

36.036.036.036.0

36.036.036.045.0

54.054.054.066.0

66.0110.0132.0132.0

132.0158.0158.0160.0

160200200220300

Clamping Elements Type RCK 50

These shaft clamping elements consist of just two conical rings whichrequire the minimum of radial space, so providing compact assemblies, andenabling use within small hub diameters. The design offers the maximumversatility of design, but does require the customer to provide their ownthrust ring assembly. Whilst only providing low torque transmission perunit they can be combined (up to 4 units) to increase torque capacity. Whenfully clamped these units provide excellent gastight sealing. Many designsof thrust rings are possible and sketches to the left are two typical designs.These units do not self centre, so require external means of centring thehub.

Dimensions

Part No. †

10.411.513.114.7

15.917.819.021.4

22.423.524.725.6

29.630.632.434.6

36.038.741.244.9

49.450.852.755.0

57.563.571.373.1

78.879.783.987.6

90.097.498.7

103.6112.2

Dimensions mm

d D L L1

TorqueCap.

MNm

AxialForce

FkN

Axial Forcenecessaryto clamp

kN

Approx.Weight

gms

ShaftPs

N/mm2

HubPh

N/mm2Assy

Type AAssy

Type BAssy

Type C

Surface Pressure Min. Hub Dia* mm

*Minimum outside diameter of hubs manufactured in medium carbon steels with yield strength ≥ 320 N/mm2.

For hub types, and other materials, refer to page 3.For assembly and disassembly instructions refer to page 20.

† Clamping Rings for shafts diameters up to 150mm available to order.

Recommended tolerances for full torque transmission are:-

Up to 38m shaft Ø:- Shaft h6Hub H7

40mm and above shaft Ø:- Shaft h8Hub H8

Clamping surfaces to be finished to ≤ 15 µm.

Factor for combining elements in one assembly.

Number of Elements Torque Capacity2 1.55M Nm3 1.86M Nm4 2.03M Nm

17

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19202124252628303132353638404242454848505250556055606560657065707570758075808585909595

100105105110115115120125125130135135140145

RCK19-24X50

RCK19-30X60

RCK19-36X72

RCK19-44X80

RCK19-50X90

RCK19-55X100

RCK19-62X110

RCK19-68X115

RCK19-75X138

RCK19-80X145

RCK19-90X155

RCK19-100X170

RCK19-110X185

RCK19-125X215

RCK19-140X230

RCK19-155X265

RCK19-165X290

RCK19-175X300

RCK19-185X330

† X = min. clearance required to totally remove bolt. Units for shaft diameters up to 240mm available to order.For assembly and disassembly instructions refer to page 20.* Max Clearance = dw-di. 18

Clamping Elements Type RCK 19

Type RCK 19 are normally referred to as Clamping Discs, used toclamp externally onto thin walled hubs to lock them to the shaft. Thedesign permits the use of large diameter shafts with small hub sizes,and is popular for connection of large sprocket and pulleys. Thedesign provides for optimum concentricity, with high torquetransmission. A number of shaft diameters can be accommodated by

one size of unit, max., min. and anintermediate being shown in table.

Dimensions

Part No.

0.017

0.017

0.032

0.032

0.032

0.032

0.048

0.048

0.048

0.048

0.048

0.048

0.048

0.069

0.069

0.069

0.069

0.079

0.090

24

30

36

44

50

55

62

68

75

80

90

100

110

125

140

155

165

175

185

50

60

72

80

90

100

110

115

138

145

155

170

185

215

230

265

290

300

330

14

16

18

20

22

23

23

23

25

25

30

34

39

42

46

50

56

56

71

19.5

21.5

23.5

25.5

27.5

30.5

30.5

30.5

32.5

32.5

39.0

44.0

50.0

54.0

60.5

64.5

71.0

71.0

86.0

23.0

25.0

27.5

29.5

31.5

34.5

34.5

34.5

37.8

37.8

44.3

49.3

56.4

60.4

68.0

72.0

81.0

81.0

96.0

18

18

20

20

25

25

25

25

30

30

35

35

40

40

45

50

55

55

70

170210250300340380440570630620780860940

1160138011601520188018502200240020002500315025003200395032003900460047506000725069007500900072009000

10800110001300015000151001760020100220002500028000310003500039000360004100045000520005700062000

1821242527293138413945484958665568787788928091

10591

107122107120131146171193197200225192225254259289316318352383419455487539583624576631667770814855

286

233

307

317

289

252

279

255

273

256

271

258

244

266

264

263

277

6

7

5

7

8

8

10

10

7

7

10

12

9

12

10

12

8

M5

M5

M6

M6

M6

M6

M6

M6

M8

M8

M8

M8

M10

M10

M12

M12

M16

4

4

12

12

12

12

12

12

30

30

30

30

59

59

100

100

250

0.2

0.3

0.4

0.6

0.8

1.1

1.3

1.4

1.7

1.9

3.3

4.7

5.9

8.5

9.0

11.0

15.0

Dimensions mm

dw Max*Clearance d D LL1 L2 X †

TorqueCap.

MNm

AxialForce

FkN

ApproxWeight

kg

No. Size Torque

Nm

SurfacePressureShaft PsN/mm2

Clamping Screws

Recommended tolerances

Hub Outside Ø:- h8*Hub Bore:- H6*Shaft Ø:- j6 below 30mm

h6 30mm plus

*Clearance between hub bore and shaftmust not exceed figures in table.

261

237

8

10

M16

M16

250

250

15.8

21.0

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Clamping Elements Type RCK 95

19

Similar in design to the Clamping Discs, type RCK 19, but with the discsspaced further apart to enable connection to more than one shaft, enablinguse as a rigid shaft coupling. These units can be used to connect twoidentical diameter shafts which are perfectly aligned, or to produce a longershaft which is only mounted in two bearings. Torque capacities are suitablefor standard shafting. These units provide zero backlash shaft connectionwith advantage of fast assembly and disassembly. The design makes theunit equally suitable for horizontal and vertical shafts, capable ofwithstanding high axial loads.

For assembly and disassembly instructions refer to page 20.

Dimensions

Part No.

RCK95-17X50RCK95-18X50RCK95-19X50RCK95-20X50RCK95-24X55

RCK95-25X55RCK95-28X60RCK95-30X60RCK95-32X63RCK95-35X75

RCK95-38X75RCK95-40X75RCK95-42X78RCK95-45X85RCK95-48X90

RCK95-50X90RCK95-55X94RCK95-60X100RCK95-65X105RCK95-70X115

RCK95-75X125RCK95-80X125

1718192024

2528303235

3840424548

5055606570

7580

5050505055

5560606375

7575788590

9094

100105115

125125

5656565666

6666666683

8383839393

93939393

110

110110

5050505060

6060606075

7575758585

85858585

100

100100

200220230240290

450510550580760

850900930

15201600

16902430268029003720

39704280

2424242424

3636373643

4545446867

68888989

106

106107

110110110105120

110110105

90105

1009590

110100

95110

959090

8070

44444

66664

44466

68886

66

M6M6M6M6M6

M6M6M6M6M8

M8M8M8M8M8

M8M8M8M8M10

M10M10

1717171717

1717171741

4141414141

4141414183

8383

0.460.450.440.440.65

0.630.750.710.731.33

1.201.191.281.721.90

1.882.002.173.955.25

5.465.30

Dimensions mm

d D L L1

TorqueCap.

MNm

AxialForce

FkN

ApproxWeight

gms

ShaftPs

N/mm2

No. Size Torque

Nm

Surface Pressure Clamping Screws

Recommended tolerances for full torque transmission shaftsshould be to h8 tolerance with surface finish ≤ 15 µm.

Warning

The units are not flexiblecouplings, and must never beused as such. Any radial loadson shafts must be adequatelysupported by bearingassemblies.

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20

Installation Instructions

Installation and Removal of Cross Shaft Clamping Elements

Types RCK 11, 13, 15, 16, 61,70,71,80 and ACE81Installation:-1. Slacken all screws in element by approx. two turns.2. Remove two or three screws completely, and fit into equally spaced

sempty release thread holes. Tighten these screws lightly so as to ensure inner and outer cones are kept apart.

3. Clean all contact surfaces including screw threads, and lightly oil with clean thin unmodified oil.*

4. Insert clamping element into hub and push onto shaft and locate.5. Remove screws from release holes and replace in original holes.6. Tighten all screws finger tight and align hub.7. Tighten all screws evenly in a diametrically opposite sequence

(see typical progression in sketch) using a torque wrench, initially at halfscrew catalogue torque, then 3/4 value, and finally full torque. Check all screws at full torque until no further rotation of screws occurs.

Disassembly:-1. Slacken all clamping screws by couple of turns, completely removing as many as release holes in element.2. Fit screws in release holes and tighten in sequence as clamping to force inner and outer cones apart.3. Carefully remove hub and clamping element from shaft, and take element from hub.

Types RCK 40 and 45Installation:-1. Clean all contact surfaces, and lightly oil with clean thin unmodified mineral oil.*2. Fit hub to shaft and insert clamping element.3. Tighten all screws finger tight and align hub.4. Tighten all screws evenly in a diametrically opposite sequence (see typical progression in sketch) using a torque wrench,

initially at half catalogue torque for screw, then at 3/4 value, and finally at full torque. Check all screws are at full torqueuntil no further rotation of screws can be achieved.

Disassembly:-1. Release clamping screws in same sequence as for clamping. Element should now self release. If required lightly

tap clamping screws to aid release. If still not released remove light coloured screws completely and replace with next larger metric size and tighten these screws to jack the cones apart.

Type RCK 50Installation procedure depends detailed design, but following is typical:-1. Clean all contact surfaces, and lightly oil with clean thin unmodified mineral oil.*2. Push hub onto shaft and insert spacer sleeves and clamping ring sets according to application drawing.3. Insert distance ring if fitted and attach clamping flange lightly tightening screws. Align hub.4. Tighten all screws in a diametrically opposite sequence, in several stages up to max. torque for screw size.

Disassembly:-The taper of the individual rings is such that the assembly should automatically release when the locking screwsare slackened. If not light tapping on the hub circumference should release them.

Types CCE 54 and 55Installation:-1. Clean all contact surfaces, and lightly oil with clean unmodified mineral oil.*2. Turn locking nut anticlockwise until outer sleeve loose on inner cone.3. Position hub on shaft and insert clamping element.4. Align hub and tighten locking nut to catalogue torque value, and bend suitable tab on lock washer to prevent

further rotation.

Disassembly:-1. Release bent washertab and undo nut until sleeve loose.2. Remove clamping element, If tight give end of tab gentle tap to release.

Types RCK 19 and 95Installation:-1. Clean all contact surfaces, and lightly oil with clean thin unmodified mineral oil.*2. Slacken all clamping bolts by a couple of turns.3. (RCK 19 only) Fit clamping element on outer diameter of hub, and slide assembly onto shaft and position.

(RCK 95 only) Fit shaft ends equally into clamping element ensuring small clearance between shafts.4. Tighten all bolts in a diametrically opposite sequence, in several stages up to max. specified torque.

Disassembly:-Slacken all bolts and gently tap on bolts to release clamping element.

*WARNING: Never use, lubricant containing Molydenum or E.P. additives, synthetic lubricant, or grease.

19

3

7

52

10

4

8

6

END