FLEXIBLE COUPLINGS - Vibrachoc€¦ · - GENERAL When transmitting torque from a drive shaft to a driven shaft, flexible couplings : •absorb and dampen irregularitiesin the torque,

FLEXIBLECOUPLINGSFLEXIBLECOUPLINGS

I - GENERAL

I.1 Function of a flexible couplingI.2 Basic parameters

II - SELECTING A COUPLING

II.1 Calculating the nominal torqueto be transmitted

II.2 Safety coefficientII.3 Examples

Coupling selection chart

III - EXAMPLES OF INSTALLATION

IV - DATA SHEETS

MINIFLEXMPPJUBOFLEXJUBOFLEX WITH SEPARATE HUBJUBOFLEX “S”STRAFLEXSTRAFLEX WITH SEPARATE HUBTORSOFLEXCARDAFLEXRADIAFLEX RTPCORDIFLEXTETRAFLEX 160 and 250 N.mTETRAFLEX 1000 to 8000 N.mAXOFLEXMounting on SAE flangeComponents for obsolete couplings :For RADIAFLEX couplingFor GV coupling

INDEX

Page

34

789

10

12

131721232729313537414547495156

5758

59

CO

NT

EN

TS

2

F L E X I B L E C O U P L I N G SSe

e c

urre

nt

pri

ce li

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aila

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of i

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- GENERAL

When transmitting torque from a drive shaft to a driven shaft, flexible couplings :

• absorb and dampen irregularities in the torque,

• distribute peak loads,

• allow misalignments and offsets between the shafts,

• permit some distortions in the mounting beds,

• avoid the unwelcome constraints that may occur if a rigid coupling were fitted in the sameconditions,

• allow a lighter construction, with wider tolerances, and lower cost.

In particular, a flexible coupling is absolutely essential if the machines that are coupled are onflexible mountings.Moreover, there is no play in a flexible coupling, and it therefore runs silently, without frictionand does not need to be greased.

I.1 - FUNCTION OF A FLEXIBLE COUPLING

I

3

F L E X I B L E C O U P L I N G S

The procedure for selecting a coupling is set out below :

In order to select a flexible coupling, therefore, the following parameters should be known :

• Nominal torque to be transmitted.

• Safety coefficient - Nominal torque of the coupling.

• Stiffness - Misalignments - Offset.

• Dimensions - Space available.

• Operating environment - Temperature - External factors.

I.2 - SELECTION PARAMETERS

Nominal power to betransmitted

Nominal torque to betransmitted

Irregularities in the torque

Minimum nominal torque tobe selected

Coupling initially selected

Operating environmentTemperature

External factors

MisalignmentsOffsets

Coupling finallyselected

Safety coefficient

Maximum rotational speed

Dimensions of the shaft endsSpace available

4

I.2.1 - Nominal torque to be transmitted

The nominal torque is the main factor which determines the dimensions of the couplingbetween the shafts of the machines that are connected directly to it.The nominal torque to be transmitted is a function of the nominal power to be transmitted andthe rotational speed.

7160 x P (bhp)T (N.m) = _______________

N (rpm)

9735 x P (Kw)T (N.m) = _______________

N (rpm)

The nominal power to be transmitted is that of the driving machine expressed in kilowatts (Kw)or brake horsepower (bhp). The couplings in PAULSTRA's standard range can transmit powerfrom 1 Kw to more than 2,000 Kw.

The rotational speed expressed in revolutions per minute is that of the driving machine andmust be less than the maximum speed of the coupling.

The couplings in PAULSTRA's standard range allow high speeds (up to 10,000 rpm), which isgreater than electric motor speeds. The maximum speeds indicated can be achieved only ifgreat care is taken during assembly.

In addition to its elastic properties, the rubber has viscous damping characteristics whichdampen the oscillations (1) and in particular the oscillations which might become excessiveduring transient periods of peak load.The dampening effect is produced by irreversibly absorbing the energy which is thusconverted into heat. In order to prevent the rubber being damaged by the resultant increase intemperature, especially if running at high speed, it is important to ensure the best possiblealignment.

Once the coupling has been chosen, if difficult peak load conditions become evident, it wouldbe advisable to choose a flexible coupling with different characteristics.

I.2.2 - Safety coefficient

The following factors should be taken into consideration when selecting the nominal torque ofthe coupling :

• irregularities in the torque characteristic of the driving and the driven machines (K1),

• frequency of start-ups (K2),

• number of hours in operation per day (K3).

The product K of these three coefficients K1, K2, K3, is called the safety coefficient or the loadfactor.

Nominal torque of the coupling = Nominal torque to be transmitted x safety coefficient.An excessive safety coefficient should be avoided as this tends to lead to the selection ofa coupling that is oversize and too stiff.

(1) Braking force proportional to the speed of displacement.

5

I.2.3 - Stiffness - Misalignments - Offsets

A flexible coupling always allows, to varying degrees depending on type, structure anddimensions, displacements in four ways : axial, radial, conical and torsional. A stiffness definedfor each of these cases. The stiffness affects the way in which the coupling reacts whensubjected to each of the various possible displacements.

It can be seen that a coupling can absorb misalignment more easily if it is very flexible (ie it isless stiff). With flexible couplings “alignment” is not an arduous, high precision operation as isthe case with rigid couplings.The forces generated by flexible couplings, which are transmitted to the shafts and supports,are, of course, proportional to the magnitude of the misalignments.

I.2.4 - Dimensions - Space occupied

When choosing the coupling, one should bear in mind :

• the dimensions (diameter and length) of the ends of the shafts to which the flanges of thecoupling will be fitted,

• the space (diameter and length) available between the machines for the coupling.

I.2.5 - Operating conditions - Temperature - External factors

The natural rubber which has been selected for most of our standard couplings on the basis ofits good dynamic qualities :

• is very good for the operating environment of most machines,

• is not affected by accidental contact with oil or petrol,

• easily withstands temperatures up to 70°C.

A temperature which is permanently higher will lead to progressive deterioration in theproperties of the rubber and it would therefore be advisable to consider special compounds.Most PAULSTRA flexible couplings can be made using various types of special compounds thatcan withstand above average temperatures and remain serviceable in unusual conditions:prolonged contact with hydrocarbons, acids, alkalis or with unusual gases (ozone, chlorine . . ).

If operating conditions are different from those defined for our standard couplings, contactour Technical Department.

6

Misalignment torque TαKα = ________________ = ___

Angular αmisalignment

expressed in m.KN/radian

Axial force FxKx = ________________ = ___

Corresponding Xaxial displacement

expressed in daN/mm

Axial stiffness

Radial force FyKy = ________________ = ___

Corresponding Yradial displacement

expressed in m.kN/radian

Radial stiffnessTorsional or polarstiffness

Torque TθKθ = ________________ = ___Angular Θ

displacementexpressed in m.kN/radian

Conical stiffness

Θ

Tθ Tα Tα

Fy

Fx FxY

X

αFyTθ

- SELECTING A COUPLING

Example : To calculate the torque, draw a straight line between the points representing thepower to be transmitted and the rotational speed of the machine. The intersection at the centralscale indicates the torque value.Ex. : 25 bhp at 800 rpm → 300 N.m. Draw an horizontal line through this point.The type of coupling will then be selected, bearing in mind the safety coefficient to be appliedand the flexibility required. Refer to the selection chart, page 10.

IIII.1 - CALCULATING THE NOMINAL TORQUE TO BE

TRANSMITTED

7

6070

8090100

150

200

250

300

400

500

600

800

1,000

1,500

2,000

2,500

3,000

4,000

5,000

6,000

8,000

10,000

Nominal torqueto be transmitted

N.m

Nominal powerto be transmitted

BhP / Kw

WELL ALIGNED MACHINESSLIGHT IRREGULARITIES

Ex: electric motor and rotating pumpSAFETY COEFFICIENT 1

ALIGNED MACHINESAVERAGE IRREGULARITIES

Ex: Internal combustion engine,balanced and geared

SAFETY COEFFICIENT 2

Rotational speedrpm

TOR

SOFL

EX

AX

OFL

EX

JUBO

FLE

XM

INIF

LEX

MIN

IFLE

XM

PP JUBO

FLE

X STR

AFL

EX

AX

OFL

EX

800

600

500

400

300

250

200

150

100

80

60

50

40

30

25

20

15

1098

7

6

5

4

3

1,000

800

600

500

400

300

250

200

150

100

80

60

50

40

30

25

20

15

1098

7

6

5

4

100,00080,000

60,00050,000

40,000

30,00025,00020,000

15,000

10,0008,000

6,0005,0004,000

3,000

2,000

1,500

1,000

800

600500

400

300250200

150

100

80

60

5040

30

2520

15

10

54

3

2.5

2.0

1.2

0

II.2 - SAFETY COEFFICIENT

Number of operating hours per day

Coefficient K3

0 - 2

0.9

2 - 8

1

8 - 16

1.1

16 - 24

1.2

NUMBER OF START-UPS PER HOURDepending on driving machine - drivenmachineSee table K1

➊

➋ ➌

➍ ➎ ➏

1

1

1

1

10

1.2

1.1

1.05

30

1.3

1.2

1.1

60

1.5

1.3

1.2

120

1.6

1.4

1.2

II.2.1 - Coefficient K1 = Driving machine/driven machine

II.2.3 - Coefficient K3 = Number of operating hours per day

II.2.2 - Coefficient K2 = Number of start-ups

Driving Machine

Piston Engine

4 to 6cylin.

1 to 3cylin.

1.41.21

Electr.motor

orturbine

Driven machine

➊Smooth operation -

Very low inertia

Examples of driven machines

• Lay shaft • Lighting generator • Series of shafts • Centrifugal pump • Centrifugal fan...

1.71.41.2➋

Irregular operation -Low inertia

• Fluid agitator • Conveyor belt • Lift• Rotating machine tools for wood and metal • Light textile machines • Folding machines • Geared pumps• Paddle pumps • Fans...

21.71.4➌

Irregular operation -Average inertia

• Agitator for heavy liquid • Rotary compressor• Roller conveyor • Shredders • Rotary ovens • Wood machinery (planing machine, band-saw . . .)• Printing machines • Mixers • Hoists • Punch • Centrifugal pump for loaded liquid...

2.421.7

➍Irregular operation -

Average inertia -Average shocks

• Concrete mixer • Bar shredder • Shot blaster• Piston compressor with fly wheel • Chain conveyor • Crane • Light rolling mill • Flour mills • Power hammer • Loom • Piston pump with fly wheel • Horizontal mills • Winches • Mine fans...

2.82.42

➎Irregular operation -

High inertia -Hard shocks

• Hammer crushers • Calender (rubber, textiles...)• Piston compressor with low inertia fly wheel • Wood shredder • Excavator • Rolling mill • Piston pump with low inertia fly wheel • Forging press • Paper press • Vibrating sieve...

3.32.82.4

➏Irregular operation -Very high inertia -Very hard shocks

• Piston compressor without fly wheel • Crusher• Welding generator • Heavy rolling mill• Brick press • Piston pump without fly-wheel...

8

II.3.1 - Electric motor - Pump

Nominal torque to be transmitted : chart indicates 5 N.m.Safety coefficient : K1=1 K2 = 1.3 K3=1 hence K=K1 x K2 x K3 = 1.3.Nominal torque of coupling : NT = 50 N.m x 1.3 = 65 N.m.

For machines which have a regular cyclic operation with correct alignment, it is not essential tohave a highly flexible coupling and so the following couplings would be pre-selected :

CARDAFLEX 80 N.mPAULSTRA MPP 80 N.mSTRAFLEX 100 N.mAll these couplings can be used at a speed of 3,000 rpm.

In this case, the PAULSTRA MPP 80 N.m coupling would be chosen as it is the only onewhich will fit the diameter (42 mm) of the end of the motor shaft.

II.3.2 - Electric motor - Compressor

Nominal torque to be transmitted : chart indicates 190 N.m.Safety coefficient : K1=1.7 K2=1 K3=1 hence K=1.7.Nominal torque of coupling : NT = 190 x 1.7 = 320 N.m.

The characteristics of the driven machine mean that high torsional flexibility is essential toabsorb the cyclic irregularities.

The JUBOFLEX 350 N.m will therefore be selected, having checked that it canaccommodate the shaft ends of the machines.These examples are simple cases. In many instances, this method is adequate for selectingcouplings.

In more complex cases (cyclic vibrations, for example), it is advisable to consult ourTechnical Department.

II.3 - EXAMPLES

Driving machineStandard electric motor 160 MPower : 15 KwSpeed : 3000 rpmEnd of shaft Ø : 42 mm - length : 110 mm

Driving machine :Standard 200 L electric motorPower : 30 kWSpeed : 1,500 rpmEnd of shaft Ø : 55 mm - length : 110 mm

Driven machine :Standard C2 water pumpEnd of shaft Ø : 32 mm - length : 80 mm30 start-ups/hour8 hours operation per day

Driven machine :2 cylinder compressor with fly wheelEnd of shaft Ø : 60 mm - length : 110 mmLess than one start-up/hour8 hours operation per day

9

II.2.4 - Nominal torque of the coupling

Nominal torque of the coupling = Nominal torque to be transmitted x safety coefficient.The safety coefficient, K, is the product of the three coefficients K1, K2 and K3.

The above parameters should enable one or two types of coupling to be selected which aresuitable for the application required.The final choice will be made on the basis of the Data Sheets for the coupling selected,checking :

• The dimensions allowed for the shaft ends.• The space available.• The exact values of the misalignements, offset, stiffness.• And any other parameter (eg : installation).

633047

633044

633038

633039

633041

60

40

20

10

2,5

4,000

4,000

7,000

9,000

10,000

55

55

42

28

14

633055

633054

633051

633053

633052

650

380

200

80

30

3,000

3,000

4,000

7,000

9,000

75

60

55

42

28

632320

632025

632043

632031

632029*632226

632017*632217

632023*632210

632027*632205

1.200

700

500

350

250

160

90

40

2,400

2,400

2,800

3,0003,500

4,500

5,000

6,000

100

80

75

7060

48

40

30

635107

635106

635105

635304*635308

635303*635307

635302*635306

635301*635305

635100

6000

3,200

1,600

800

400

200

100

50

2,000

2400

2,800

3,500

4,500

5,000

5,500

6,000

145

110

100

700

50

42

32

30

615418

615444615414615442615412615440615410615408615212615406

615210

615208

615206

615204

615203

40,000

}24,000

}17,500

}12,000

7,500

} 5,000

3,600

2,300

1,300

800

600

1,200

1,400

1,500

1,500

1,8001,8002,000

2,500

2,500

3,000

3,000

3,000

200

200170170150150120120120100

100

80

80

60

60

In order to make it easier to select the coupling required, this SELECTION CHART indicates thebehaviour of PAULSTRA couplings when under stress.

This rating takes account of the possibilities of misalignments, offset and the resultant forces on theshafts and supports. Each condition is shown :

TORSION.

RADIAL

AXIAL

CONICAL

* * *Push fit

* *

MINIFLEX

* **

Push fit

*

MPP

* * ** *

* * ** * *

JUBOFLEX

**

* ** *

STRAFLEX

**

* **

AXOFLEX

NT(N.m)

CouplingRef.

CouplingRef.

CouplingRef.

CouplingRef.

Nom.Torq.(N.m)

Nom.Torq.(N.m)

Nom.Torq.(N.m)

Nom.Torq.(N.m)

SpeedMax

(rpm)

SpeedMax

(rpm)

SpeedMax

(rpm)

SpeedMax

(rpm)

Maxshaft

Ø(mm)

* *

CouplingRef.

Nom.Torq.(N.m)

SpeedMax

(rpm)

Maxshaft

Ø(mm)

Maxshaft

Ø(mm)

Maxshaft

Ø(mm)

Maxshaft

Ø(mm)

10

100,000

50,00040,00030,000

20,000

10,000

5,0004,000

3,000

2,000

1,000

500

400300

200

100

5040

3020

10

2.5 *separate hubs

C O U P L I N G S E L E C T I O NC H A R T

3,000

3,000

3,000

3,000

} 1,200

} 1,000

} 800

} 600

639066 43639065 43639066 42639065 42639066 41639065 41639066 40639065 40

1,5001,5002,000

2,5001,500

2,500

3,000

3,000

3,000

104,000

72,00060,000

34,000

}17,500

9,700

6,9004,5004,100

2,8002,500

1,800

1,100

630

470

612616

612613612612

612608

612606612416

612412

612410612408612212

612210612406

612208

612206

612204

612203

622407

622406

4.0004.500

5.500

6.500

7.000

800

520

160120

80

50

30

622407

622406

622405622404

622403

622402

622401

3,0003,000

3,000

3,000

3,500

4,200

6,000

6,000

8,0006,000

4,000

2,500

2,000

1,000

250

160

630421630420

630470

630419

630802

630803

630408

630400

3,000

3,200

3,500

4,000

10,000

5,000

2,500

1,200

682140

682120

682100

682080

More precise information on the values for misalignment, offset and rigidity can be found in the individual DataSheets.

TORSION.

RADIAL

AXIAL

CONICAL

* *

*

TORSOFLEX

* ** * ** * ** * *

TETRAFLEX

* **

* ** *

CARDAFLEX

**

see Data Sheet

RADIAFLEXRTP*

* * ** *

Push fit

* *

CORDIFLEX

NominalTorque(N.m)

CouplingRef.

CouplingRef.

CouplingRef.

CouplingRef.

NominalTorque(N.m)

NominalTorque(N.m)

NominalTorque(N.m)

NominalTorque(N.m)

SpeedMax

(rpm)

CouplingRef.

NominalTorque(N.m)

SpeedMax

(rpm)

SpeedMax

(rpm)

SpeedMax

(rpm)

SpeedMax

(rpm)

100,000

50,00040,00030,000

20,000

10,000

5,0004,000

3,000

2,000

1,000

500

400300

200

100

5040

3020

10

2.5

Very flexible Flexible RigidSemi-flexible* * * * * *

* See current price list for items held in stock. Braking force proportional to the speed of displacement.

11

C O U P L I N G S E L E C T I O NC H A R T

- EXAMPLES OF INSTALLATIONIII

12

III.1 Flanged shaft mounting

III.3 Mounting on transmission shaft

III.2 Flywheel mounting

III.5 Drum brake and diskbrake mounting

III.4 Mounting in series

Increases the flexibility whilekeeping the torque constant.Ex. : AXOFLEX coupling with twosets of studs linked by an “anti-centrifuge” disk.

Disk brake mounting

Drum brake mounting for ourcouplings with rings : AXOFLEX, RTP

Mounting with spacer.Ex. : JUBOFLEX

SpacerMounted directly onflywheel.

Ex. : AXOFLEXThe most common mounting

Assembly with centred transmission shaft. Ex. : JUBOFLEX

MINIFLEX

• Flexible element :

① Natural rubber block bonded to.② V-shaped metal armatures.

• Flange : aluminium or cast-iron :

③ Drive segment.

The MINIFLEX coupling is designed with the following features :

• Push fit assembly.• Compact, smooth cylindrical shape without protrusions.• The flexible element is precompressed during assembly, which

extends the range of operating conditions where the rubber is notsubject to tension.

Advantages :• Highly effective attenuation of cyclic irregularities and peaks in the

torque.• Exceptionally long-life ensured by precompressing the flexible

element.• Tolerance to large misalignment : avoids the need for precise align-

ment of the machines to be coupled.

Recommendation :• It is recommended that the coupling should not be subjected to axial

tension which might cause the flexible element to slip from the drivesegment on the flange.

DESCRIPTION

OPERATION

* * * * * * Push fit * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

13

➂ ➁ ➀

1 Nm ≠ 0.1 mkg See current price list for availability of items.

The maximum torque is considered to be infrequent, start-up torque and not periodic.

DIMENSIONS

PARTS LIST

Nominaltorque

N.m

Maxtorque

N.m

Maxspeedrpm

Maxhole C

mm

Amm

ALUMINIUMFLANGES

2.5

10

20

5

20

40

10.000

9.000

7.000

14

19

28

45

58

80

CAST IRONFLANGES

2.5

10

20

40

60

5

20

40

80

120

10.000

9.000

7.000

4.000

4.000

14

28

42

55

55

45

58

84

118

118

Bmm

41

61

88

41

61

88

116

120

Dmm

28

36

48

28

42

63

82

82

Emm

Reference

14

20

30

633040

633010

633020

14

20

30

40

40

633041

633039

633038

633044

633047

Hmm

21

31

40

21

31

40

51

55

Jmm

2

2

4

2

2

4

6

10

Xmm

14

16

28

14

16

28

38

38

Weightkg

0.10

0.26

0.68

0.25

0.6

1.8

4.5

4.5

Couplingreference

QtyFlexibleelement

reference

Flangereference

Qty

633010633020633038633039

1111

633510633520633520633510

321521321531321534321503

2222

Couplingreference

QtyFlexibleelement

referenceFlange

referenceQty

633040633041633044633047

1111

633501633501633540633640

321511321501321535321535

2222

14

Section YY’ Section XX’

Flange supplied unbored

J

X

X’

H

B

E

A C DY’

X

Y

OPERATING LIMITS

OPERATING CHARACTERISTICS

15

Nominaltorque

N.m

Vibrat.coupling

N.m

Torsionunder NTdegrees

2.510204060

1.25

102030

2828241816

AXIALdaN/mm

RADIALdaN/mm

TORSIONALm.KN/rad.

CONICALm.KN/rad.

0.31.51.2524.5

2578

12

0.0040.0200.0450.1260.214

0.0050.0900.0900.0220.034

STIFFNESS

1 Nm ≠ 0.1 mkg

Nominal torque N.m

2.5

10

20

40

60

0.15 mm

0.25 mm

0.5 mm

1 mm

1 mm

Radialmisalignmentat 1,500 rpm

RADIAL MISALIGNMENT

CONICAL MISALIGNMENTPOWER RANGE

Power Kw

Speedrpm

20

10

8

6

4

2

1

0.8

0.6

0.4

0.2

0.1

100 200 500 1,000 2,000 5,000 10,000

6330

4763

3044

6330

20-6

3303

863

3010

-633

039

6330

40-6

3304

1

Degrees

Max conicalmisalignment

5

4

3

2

1

0 2,000 4,000 6,000 8,000 rpm

The coupling is assembled and disassembled axially which entails moving one of the machines.This procedure is not difficult and can be done quickly, as at least one of the machines beingcoupled is not heavy.

Method :

• Fit an opposing pair of armatures of the flexible element half-way onto the drive segments ofone flange.

• Position the second flange.• Push the two flanges together to engage the armatures of the flexible element.• Release.

Example : electric motor/pump coupling mounted on fly wheel and groovedshaft.

ASSEMBLY

16

MPP

• Flexible element ➀ : polyurethane in the form of a Maltese cross.• Flange ➁ : cast iron with drive segments ➂ supplied unbored (except

633054 and 633055).

Variations : For assemblies with a ring or spacer, consult our technicalmanuals.

The MPP coupling is designed with the following features :

• Push fit assembly,• Smooth, compact cylindrical shape, without protrusions,• The flexible element operates under compression,• Safe in use,• Temperature range - 30°C to + 70°C in continuous operation.

Advantages :• Reduced size,• Easy to use.

Recommendation :• It is recommended that the coupling should not be subjected to axial

tension which might cause the flexible element to slip off the drivesegments on the flanges.

DESCRIPTION

OPERATION

17

* * * Push fit *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

➁ ➂ ➀ ➂ ➁

DIMENSIONS

PARTS LIST

Couplingreference

QtyFlexibleelement

referenceFlange

referenceQty

633051

633052

633053

1

1

1

633551

633552

633553

321535

321503

321534

2

2

2

Couplingreference

QtyFlexibleelement

referenceFlange

referenceQty

633054

633055

1

1

633554

633555

321464

321465

2

2

18

Section XX’ Section YY’

1Nm ≠ 0.1 mkg See current price list for availability of items.

The maximum torque is considered to be an infrequent start-up torque and not periodic.

Nominaltorque

N.m

30

80

200

380

650

90

240

600

1150

2000

9000

7000

4000

3000

3000

-

-

-

20

20

28

42

55

60

75

58

84

118

145

170

62

89

116

160

208

42

63

82

90

112

20

30

40

60

80

MPP 3

MPP 8

MPP 20

MPP 38

MPP 65

633052

633053

633051

633054

633055

32

41

51

67

82

3

5

6

6

6

10

13

20

30

32

0.6

1.8

4.5

9.4

18

Maxtorque

N.m

Maxspeedrpm

AmmType B

mmD

mmE

mm Reference Hmm

Jmm

Xmm

Weightkg

Hole sizeC mm

min max

J

X

H

B

E

X

A C DY’

X’

Y

Nominaltorque

N.m

Vibratorytorque

N.m


Radialmisalignment*

mm

Conicalmisalignment*

degrees

Axialmisalignment

mm

30

80

200

380

650

15

40

100

380

650

10°

10°

10°

10°

10°

0.2

0.4

0.9

1

1

1°

1°

1°

1°

1°

1.5

2.5

3

3

4

OPERATING LIMITS


* given for a speed of 3,000 rpm.

19

Power Kw

Speedrpm

POWER RANGE

200

100

50

20

10

5

2

1

6330

5563

3054

6330

51

6330

53

6330

52

100 200 500 1,000 2,000 5,000 10,000

Motortype

56

63

71

80

90 S90 L

100 L

112 M

132 S

132 M

160 M

160 L180 M180 L200 L

225 S225 M250 M

280 S

Power2 poles

n ~_ 3000 rpmType of

couplingType of

couplingType of

couplingType of

coupling

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3MPP 3

MPP 3MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3

MPP 3MPP 3MPP 3MPP 3MPP 8MPP 8MPP 8MPP 8

MPP 8MPP 8MPP 8

MPP 8

MPP 8MPP 20MPP 20

MPP 20

MPP 20

MPP 20

MPP 20

MPP 8MPP 8MPP 8

MPP 20MPP 20MPP 20MPP 20

MPP 20

MPP 38MPP 38MPP 38

MPP 38MPP 20MPP 20

MPP 38MPP 38MPP 38

MPP 38MPP 38MPP 38



Power4 poles

n ~_ 1500 rpm

Power6 poles

n ~_ 1000 rpm

Power8 poles

n ~_ 750 rpm

Shaft dimensionsD x E

Kw Kw Kw~ 3000

rpm

9 x 20

11 x 23

14 x 30

19 x 40

24 x 50

28 x 60

28 x 60

38 x 80

38 x 80

42 x 110

48 x 110

55 x 110

56 x 110 60 x 140

65 x 14060 x 140

65 x 140 75 x 140

~ 1500rpmH.P. H.P. H.P.

11.52

3

4

5.57.5

10

1520

253040

50

18.52230

37

1115

0.751.11.5

2.2

3

45.57.5

2

34

10

15

7.5

11

2530

2018.522

15

4050

61

1.5

11.5

0.751.1

0.50.75

0.370.55

0.160.25

0.120.18

0.080.12

0.060.09

2.23

45.5

5.57.5

0.340.50.5

345.57.5

15

20

40

2530

506175

100

1.52

0.751

0.160.25

0.080.12

10

0.250.370.37

2.2345.5

11

15

30

18.522

374555

75

1.11.5

0.550.75

0.120.18

0.060.09

7.5

0.370.550.55

3

45.57.5

111518.5

3037

22

4555

75

1.52.2

0.751.1

0.180.25

0.090.12

0.50.750.75

4

5.57.5

10

152025

4050

30

6175

100

23

11.5

0.250.34

0.120.16

3037

45

Kw H.P.

ASSEMBLY

20

Example : electric motor/centrifugal pump coupling : mounted on motorisedflywheel using an adaptor.

SELECTION GUIDEPAULSTRA MPP® / STANDARD, 50 HZ ASYNCHRONOUS THREE PHASES MOTORS

This table uses a safety coeficient of 1.3 corresponding to normal operating conditions of commonly used driven machines.

For assemblies with flange or spacer : ask our technical notes.

JUBOFLEX

• Flexible element :① Precompressed natural rubber,② Bonded metal spacers,③ Precompression band (to be removed after installation).

• Flange :④ Die-cast steel (except 632320 which is cast-iron).

The JUBOFLEX coupling is designed with the following features :

• Radial disassembly without moving the machines that are coupled.• The flexible element is precompressed during assembly, which

extends the range of operating conditions where the rubber is notsubject to tension.

Advantages :• Highly effective attenuation of cyclic irregularities and peaks in the

torque.• Very safe in use and the precompression ensures very high

resistance to oscillation• Tolerance to large misalignment: avoids the need for precise

alignment of the machines to be coupled.

Recommendation :• In use, precompression is achieved by the fixing bolts, and the

JUBOFLEX coupling operates without the precompression bandround the flexible element.

DESCRIPTION

OPERATION

* * * * * * * * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

21

➁ ➀ ➂ ➃

The maximum torque is considered to be an infrequent start-up torque and is not periodic.For higher nominal torques see “JUBOFLEX ‘S”.

The flexible elements are delivered precompressed using a precompression band whichshould be removed after installation.For subsequent maintenance, use the disassembly band shown in the Parts List.

DIMENSIONS

PARTS LIST

Coupling withoutprotectorreference

Flexibleelement

referenceQty

Flangereference

QtyDisassembly

bandreference

632017632023632025632027632029632031632043632020

632505632503632511632502632507632508632500632520*

11111111

321334321324321364321314321344321354321374321390

22222222

331243331242331246331241331244331245331247331240

* This element has 8 mounting holes.

JUBOFLEX Steel flanges except 632320 JUBOFLEX Cast-iron flanges : ref. 632320

NominaltorqueN.m

4090

160250350500700

1200

120270480750

1050150021003600

60005000450035003000280024002400 60

30404860707580

100

Maxtorque

N.m

Maxspeedrpm

Amm

91117142181202232263280

128172196247284322346486

42566890

105115122156

47667093

109124133172

632027632023632017632029632031632043632025632320

2832465154626878

6585

100132150170190210

5060809396

108116222

810121418202020

87113135172196225246

-

1114172121232452

50707598

115130139204

23354063687582

110

235

1218253257

Bmm

Dmm

Emm

Fmm

Gmm

Hmm

Jmm

Kmm

Lmm

Mmm

X*mm

Weightkg

Reference(without

protector)

Hole sizeC mm

min max

1 mN ≠ 0.1 mkg See current price list for availability of items.* Diameter of passage in flexible element under the nominal torque.

22

H

A GE E KDC

J

X

B

F L M

H

AG

E E

D C

J

X

BF

L

M

JUBOFLEXWITH SEPARATE HUB

• Flexible element :① Precompressed natural rubber.② Bonded metal spacers.③ Precompression band (to be removed after installation).

• Flange :④ Die-cast steel specially bored to fit the separate hub.⑤ Universal separate hub (not supplied by PAULSTRA).

In addition to the characteristics described above, the separate hubused in conjunction with the JUBOFLEX coupling provides theadvantage :

Ready to assemble without machining the flanges.

Advantages :• Reduced size.• Simplified axial positionning.• Easy to assemble and disassemble.• Reduction of costs by simplifiying the machining required for the

shafts and flanges.

Recommendation :• In use, precompression is achieved by the fixing bolts and the

JUBOFLEX coupling operates without the precompression bandround the flexible element.

DESCRIPTION

OPERATION


23

➁ ➀ ➂ ➃ ➄

The flexible elements are delivered precompressed using a precompression band whichshould be removed after installation.For subsequent maintenance, use the disassembly band shown in the Parts List.

PARTS LIST

24

Nominaltorque

N.m

40

90

160

250

632205

632210

632217

632226

91

117

142

181

74

90

106

121

48

60

70

95

20

25

25

30

28

32

46

51

65

85

100

132

54

65

81

91

8

10

12

14

91

121

140

177

11

14

17

21

23

29

30

35

23

35

40

63

65

75

90

100

0.8

1.6

2.7

5

120

270

480

750

6000

5000

4500

3500

SEE

PART

S LI

ST

Maxtorque

N.m

Maxspeedrpm

Separatehub* Ref. A

mmB

mmD

mmE

mmF

mmG

mmH

mmJ

mmK

mmL

mmM

mmX

mmZ

mmWeight

kg

Couplingreference

Flexibleelement

reference

Flangereference

Disassemblyband

reference

SEPARATE HUB

Currentreference

Universalreference

Qty Qty

632205632210632217632226

632502632503632505632507

321316321326321336321346

321241321242321243321244

28-2030-2540-2550-30

11-0812-1016-1020-12

1111

2222

DIMENSIONS

1 Nm ≠ 0.1 mkg

* For shaft diameters, refer to the hub manufacturers' specifications.

The maximum torque is considered to be an infrequent start-up torque and is not periodic.For higher nominal torques see “JUBOFLEX ‘S”.

A X

JL

M F

B

Z

D KG

H

E

OPERATING LIMITS


NominaltorqueN.m

Vibratorycoupling

N.m


4090

160250350500700

1200

204580

125175250350600

88877786.30

AXIALdaN/mm

RADIALdaN/mm

TORSIONALm.KN/rad.

CONICALm.KN/rad.

68

1111.510111215

2030453030303560

0.2850.571.142.122.754.34.5

10.6

0.040.0570.1430.570.570.570.861.14

STIFFNESS

1 Nm ≠ 0.1 mkg

25


Degrees

Max conicalmisalignment

Nominal torque N.m

4090

160250350500700

1200

0.7 mm0.9 mm1.4 mm1.5 mm1.8 mm2.0 mm2.1 mm2.4 mm

Radialmisalignmentat 1,500 rpm

RADIAL MISALIGNMENT

7

6

5

4

3

2

1

0500 1,000 2,000 3,000 4,000 5,000 rpm

Power Kw

Speedrpm

300

200

100

50

20

10

5

2

1

6323

2063

2025

6320

4363

2031

6320

29-6

3222

6

6320

17-6

3221

7

6320

23-6

3221

063

2027

-632

205

100 200 500 1,000 2,000 5,000 10,000

• Precompression for the initial installation is achieved by a band ③ placed round theoutside (our flexible elements are delivered with this band).

• Position the flexible element with its band to attach three non-adjacent holes tothe three arms of one flange, and then the three other holes to the other flange.

• Tighten the bolts to the following torques :

ASSEMBLY

Example : internal combustion engine/generatorcoupling mounted on a ring attached to the fly wheel.

• Cut the original band or remove the disassembly band.

26

Nominaltorque

N.m4090

160250350500700

1200

632027/632205632023/632210632017/632217632029/632226632031/632502632043/632503632025/632505632320/632507

214172

113240350350350

ReferenceTorquevalueN.m

JUBOFLEX “S”

• Flexible element :① Precompressed natural rubber.② Bonded metal reinforcing mountings.③ Precompression band (to be removed after installation.

• Flange :④ Die-cast steel (except 632267 which is cast-iron).

The JUBOFLEX “S” coupling is designed with the following features :

• Radial disassembly without moving the machines that are coupled.• The flexible element is compressed during assembly, which

extends the range of operating conditions where the rubber is notsubject tot tension.

Advantages :• JUBOFLEX “S” has a greater load capacity than the standard

JUBOFLEX.• Highly effective attenuation of cyclic irregularities and peaks in the

torque.• Due to the precompression, the JUBOFLEX “S” has very good resis-

tance to torsional peaks.• Tolerance to large misalignment : avoids the need for precise

alignment of the machines to be coupled.

Recommendation :• In use, precompression is achieved by the fixing bolts, and the

JUBOFLEX “S” coupling operates without the precompression bandround the flexible element.

DESCRIPTION

OPERATION


27

➁ ➀ ➂ ➃


The maximum torque is considered to be an infrequent start-up torque and is not periodic.

The flexible elements are delivered precompressed using a precompression band whichshould be removed after installation.For subsequent maintenance, use the disassembly band shown in the parts list.

DIMENSIONS

PARTS LIST

Couplingwithout

protectorReference Qty

Flangereference

QtyDisassembly

bandreference

632262632261632266632260632263632264632265632267

632552632551632556632550632553632554632555632557*

11111111

321334321324321364321314321344321354321374321390

22222222

331243331242331246331241331244331245331247331240

* This element has 8 mounting holes.

28

JUBOFLEX Steel flanges except 632267 JUBOFLEX Cast-iron flanges : ref. 632267

Nominaltorque

N.m

60130240370520750

10501800

3065

120185260375525900

120270480750

1050150021003600

60005000450035003000280024002400 60

30404860707580

100

91117142181202232263280

128172196247284322346486

42566890

105115122156

47667093

109124133172

632260632261632262632263632264632265632266632267

2832465154626878

6585

100132150170190210

5060809396

108116222

810121418202020

87113135172196225246

-

1114172121232452

50707598

115130139204

23354063687582

110

235

1218253257

Vibrat.torque

N.m

Maxtorque

N.m

Maxspeedrpm

Hole sizeC mm

mini max

Amm

Bmm

Dmm

Emm

Reference(withoutprotector)

Fmm

Gmm

Hmm

Jmm

Kmm

Lmm

Mmm

X*mm

Weightkg

H

A GE E

KDC

J

X

B

F L M

H

AG

E E

D C

J

X

B

F

L

M

STRAFLEX

• Flexible element :① Metallic bobbins linked together by rayon fibres.② The whole unit ① is potted in natural rubber and is hexagonal.

• Flange ③ : forged steel.

The STRAFLEX coupling is designed with the following features :

• Radial disassembly wihout moving the machines that are coupled.• Reduced size.• Used at relatively high rotational speeds.

Recommendation :• The reinforced textile structure means that it has a low tolerance to

irregularities in the torque.

DESCRIPTION

OPERATION

* * * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

29

➁ ➀ ➂



DIMENSIONS

PARTS LIST

Couplingreference QtyFlexible

element ref.Flange

reference Qty

635100

635105

635106

635107

1

1

1

1

635631

635636

635637

635619

331100

321826

331106

331107

2

2

2

2

Couplingreference QtyFlexible

element ref.Flange

reference Qty

635301

635302

635303

635304

1

1

1

1

635632

635633

635634

635635

321315

321325

321335

321345

2

2

2

2

30

Nominaltorque

N.m

50100200400800

160032006000

100200400800

160032006400

12000

60005500500045003500280024002000

---------

3030404860

100110145

7894

120140178232268330

80115158171222280340424

4342566890

126142184

3240667093

110123160

635100635301635302635303635304635105635106635107

1215182126324248

506585

100132170190240

3237465568

102130136

-10121416141616

-----

323737

811141721354444

7.8----

202424

20284044668694

120

1.31.635.5

12365097

Maxtorque

N.m

Maxspeedrpm

Hole sizeC mm A

mmB

mmD

mmE

mm Reference Fmm

Gmm

Hmm

Jmm

Kmm

Lmm

Mmm

Xmm

Weightkg

min max

Warning: The coupling ref. 635100 is equiped with melded studs instead of the standardbolts. It’s assembly is done simply by pushing the elements on the flanges.

Assembly of models ref. 635301, 635302, 635303, 635304

Assembly of models ref. 635105, 635106, 635107 : screws with countersunk heads

H

FL

XD

B

J

OE

A

A G

M J K

E

LF

H

B

C D

G

STRAFLEXWITH SEPARATE HUB

• Flexible element :① Metallic bobbins linked together by rayon fibres.② The whole unit ① is potted in natural rubber and is hexagonal.

• Flange :③ Forged steel specially bored to accommodate the separatehub.④ Universal separate hub (not supplied by PAULSTRA).

In addition to the characteristics described above, the separate hubused in conjunction with the STRAFLEX coupling provides theadvantage : ready to assemble without machining.

Advantages :• Reduced size.• Simplified axial positionning.• Easy to assemble and disassemble.• Reduction of costs by simplifying the machining required for the

shafts and flanges.

Recommendation :• The reinforced textile structure means that it has a low tolerance to

irregularities in the torque.

DESCRIPTION

OPERATION

31

* * * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

➀ ➁ ➂ ➃

* For shaft diameters, refer to the hub manufacturers’ specifications.

The maximum torque is considered to be an infrequent start-up torque and not periodic.

DIMENSIONS

PARTS LIST

32

Nominaltorque

N.m

100

200

400

800

200

400

800

1600

5500

5000

4500

3500

SEE

PART

SLI

ST

635305

635306

635307

635308

94

120

140

178

61

76

81

96

48

60

70

95

20

25

25

30

15

18

21

26

65

85

100

132

41

51

56

66

8

12

14

16

91

121

140

177

11

14

17

21

23

29

30

35

28

40

44

66

45

60

70

80

0.9

1.6

2.7

5

Maxtorque

N.m

Maxspeedrpm

Separatehub*

Ref.A

mmB

mmD

mmE

mmF

mmG

mmH

mmJ

mmK

mmL

mmM

mmX

mmZ

mmWgkg

Couplingreference

635305635306635307635308

635632635633635634635635

1111

321316321815321819321827

2222

28 - 2030 - 2540 - 2550 - 30

11 - 0812 - 1016 - 1020 - 12

Flexibleelement

referenceQty

Flangereference

Qty

SEPARATE HUB

Currentreference

Universalreference

1 Nm ≠ 0.1 mkg

M

XGA

H

E

L

F Z

J

B

KD

0.080.1140.20.290.571.432.33.44

OPERATING LIMITS


Nominaltorque

N.m

Vibrat.coupling

N.m


50100200400800

160032006000

2550

100200400800

16003000

631°452°301°452°2022

AXIALdaN/mm

RADIALdaN/mm

TORSIONALm.KN/rad.

CONICALm.KN/rad.

302025603050

12075

15070

180150150150180200

0.461.96.69.2

264073

172

STIFFNESS

1 Nm ≠ 0.1 mkg

33

POWER RANGE

Power Kw

Speedrpm

6351

05

6351

0763

5106

6353

01-6

3530

5

6353

02-6

3530

6

6353

03-6

3530

7

6353

04-6

3530

4

6351

00

2,000

1,000

500

200

100

50

20

10100 200 500 1,000 2,000 5,000 10,000

Method :

• Mount the flanges on the shafts of the machines to be coupled.

• Position the flexible element to attach three non-adjacent bobbins to one flange with bolts, then attach the three other bobbins to the second flange.

NOTE : For the 635100 coupling, the bolts are replaced by welded studs and so this must beassembled by pushing the flanges together.

ASSEMBLY

Example : electric motor/volumetric pump coupling :mounted on channelled shaft and flywheel.

34

TORSOFLEX

• Flexible element ① composed of :② Natural rubber ring.③ Internal armature bonded to the rubber.④ External collar force fitted to the rubber.

• Flanges ⑤ : die-cast steel fixed onto the internal armature ③ and collar④.

The TORSOFLEX coupling is designed with the following features :

• The rubber ring is precompressed to provide high torsional flexibility.• Smooth, compact, cylindrical shape without protrusion.• Radial disassembly without moving the coupled machines (the

flexible element should be compressed axially using clamps).

Advantages :• Very high resistance to oscillation.• High rotational speed.

Recommendation :• As the TORSOFLEX coupling is usually used at high speed, the

assembly must be well aligned.

DESCRIPTION

OPERATION

35

* * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

⑤ ① ② ③ ④

1 Nm ≠ 0,1 mkg See current price list for availability of items.


Method :

• Mount the flanges ⑤ on the ends of the shafts of the machines.• Fix the flanges to the internal armature ③ and to the external collar ④.

DIMENSIONS


PARTS LIST

ASSEMBLY

Couplingreference

QtyFlexibleelement

reference

Flangereference

Qty

682080

682100

682120

682140

1

1

1

1

682580

682600

682620

682640

321147

321154

321167

321191

2

2

2

2

Nominaltorque

N.m

Vibrat.coupling

N.m


120025005000

10000

600125025005000

6666

AXIALdaN/mm

RADIALdaN/mm

TORSIONALm.KN/rad.

CONICALm.KN/rad.

80120180250

350500750

1100

11.423.947.895.5

8.614.325.845.9

STIFFNESS

1 Nm ≠ 0.1 mkg

36

Nominaltorque

N.m

120025005000

10000

24005000

1000020000

4000350032003000

2832

80100120150

252318370430

250299382439

115145177210

85102136155

682080682100682120682140

86100116135

8094

110129

115145178178

145180213260

168210247290

16 - M1212 - M1616 - M1616 - M20

255090

145

Maxtorque

N.m

Maxspeedrpm

Hole sizeC mm A

mmB

mmD

mmE

mmReference

Fmm

Gmm

Hmm

Jmm

Kmm

Number andØ of

fixing screws

Weightkg

min max

G

C AH

E

F

DJ

B

K

CARDAFLEX

There are two variations of the CARDAFLEX coupling :hollow hub and solid hub :

• Flexible element :① Formed of solid natural rubber.② External steel surround, bonded to the rubber.③ Triangular hub : a hollow hub bonded to the rubber and attachedto the flange ⑤, or a solid hub which accommodates a grooved orkeyed shaft.

• Steel flanges :④ round.⑤ triangular.

The CARDAFLEX coupling is designed with the following features :

• Safe in use.• Fairly low conical stiffness.• Compact shape• Good performance at high speeds.

Advantages :• Especially in the case of the CARDAFLEX solid hub coupling, the

space occupied by the unit is much reduced.• The outer surround of the flexible element can be centred directly on-

to the flywheel of one of the machines to be coupled.

DESCRIPTION

OPERATION

37

* * * * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

➄ ➂ ➀ ➁ ➃ ➂ ➀ ➁ ➃Hollow hub coupling Solid hub coupling

J J

MGA E1D2 D2

E2 E2

E3 E3

C2 L L

K K

B B

F F

A GC1 C2 C3D1

Ø H: Ø A - 5 Ø H: Ø A - 5


DIMENSIONS

PARTS LIST

38

HOLLOW HUB

SOLID HUB

Nominaltorque

N.m

Maxtorque

N.m

Maxspeedrpm

Hole sizeC1 mm

min max min max

Hole sizeC2 mm A

mmB

mmD1

mmD2

mmE1

mmE2

mm Reference E3mm

Fmm

Gmm

Jmm

Kmm

Lmm

Mmm

Weightkg

5080

120160520900

100160240320

10401800

650060005500550045004000

7999

1112

192025324255

7999

1112

283036425670

105120130155205255

100125140155203250

343240496786

4550556080

100

334449557185

304045506580

622310622311622312622315622320622325

283535435772

404550557390

86100108130175225

668

101212

88

10121620

52526476

100127

303036425670

1.62.32.84.5

10.722

Nominaltorque

N.m

Maxtorque

N.m

Maxspeedrpm

Hole sizeC2 mm

min max min max

Hole sizeC3 mm A

mmB

mmD2

mmE2

mmE3

mmReference

Fmm

Gmm

Jmm

Kmm

Lmm

Weightkg

305080

120160520900

60100160240320

10401800

7000650060005500550045004000

77999

1112

24283036425670

10161718223040

21282836425672

85105120130155205255

60708595

105138170

404550556080

100

28304045506580

26283535435772

622401622402622403622404622405622406622407

32404550557390

6886

100108130175225

6668

101212

788

10121620

4252526476

100127

0.40.711.22.359.5

1 N.m ≠ 0.1 mkg See current price list for availability of items.

1 N.m ≠ 0.1 mkg See current price list for availability of items.

Couplingreference

622310622311622312622315622320622325

Flexibleelement

reference

622210622211622212622215622220622225

Qty

111111

Roundflange

reference

321631321641321651321661321671321681

Qty

111111

Triangularflange

reference

321636321646321656321666321676321686

QtyCouplingreference

622401622402622403622404622405622406622407

Flexibleelement

reference

622108622110622111622112622115622120622125

Qty

1111111

Roundflange

reference

321621321631321641321651321661321671321681

Qty

1111111

111111

Solid hub couplingHollow hub coupling

OPERATING LIMITS


POWER RANGE

Nominaltorque

N.m

Vibrat.coupling

N.m


305080

120160520

1525406080

260

675857

AXIALdaN/mm

RADIALdaN/mm

TORSIONALm.KN/rad.

CONICALm.KN/rad.

301630253240

10065908090

150

0.2860.4000.8600.8601.724

0.1140.1140.230.230.461.14

STIFFNESS

1 Nm ≠ 0.1 mkg

39

Power Kw

Speedrpm

300

200

100

500

20

10

5

2

1

6223

25-6

2240

7

6223

20-6

2240

6

6223

11-6

2240

3

6223

10-6

2240

2

6223

08-6

2240

1

6223

15-6

2240

5

6223

12-6

2240

4

100 200 500 1,000 2,000 5,000 10,000

Method :

• Mount the round flange onto the shaft of one machine.

• Mount :- The triangular flange onto the other shaft (hollow hub coupling).- The flexible element onto the other shaft (solid hub coupling).

• Attach the flexible element to the round flange.

ASSEMBLY

Example : internal combustion engine/hydraulic pump coupling :mounted on keyed shaft and on pulley.

40

RADIAFLEXRTP

• Flexible element made up of a variable number of FLEXIBLE STUDS① depending on the torque to be transmitted :② Solid natural rubber blocks in the form of a truncated cone.③ Internal armature bonded to the rubber.④ Threaded stud.⑤ External armature bonded to the rubber.⑥ Studding welded to armature.⑦ Cylindrical metal cover.

• Steel disks :⑧ Two identical disks, bolted to the flanges ⑩ and with slits ⑨ to housethe studs ①.

• Flanges : ⑩ die-cast steel.

The RADIAFLEX RTP coupling is designed with the following features :

• The studs can be removed radially without moving the coupledmachines.

• At low and average torque: the rubber operates under compression.• At high torque: there is progressive thrust of the rubber against the

metal cover ③.• Safe in use.• It can absorb the effects of tension or compression axially (for

example: push and pull of a helical screw).

DESCRIPTION

OPERATION

41

* * See DataSheetRadial flexibility Axial flexibilityTorsional flexibility Conical flexibility

⑦ ⑥ ⑤ ②

③

④

➉ ➀ ➇ ➀ ➇ ➈


DIMENSIONS

42

Nominaltorque

N.m

Maxtorque

N.m

Maxspeedrpm

Hole sizeC mm A

mmB

mmD

mmE

mmType Reference

Fmm

Gmm

Hmm

Jmm

Kmm

Lmm

Smm

Tmm

Wghtkg

min max

470630

11001800250028004100450069009700

1750017500340006000072000

104000

10001250220036005000560082009000

1350020000350003500068000

120000140000200000

300030003000250015002500200015001500

270270300364420424475510600680860826

1096124614461546

181181185235299274345370382424424687827827827887

868686

115145145177177177210210220320275540540

60606085

102102136136136155155250320320320350

RTP 2.3RTP 2.4RTP 2.6RTP 2.8RTP 4.6RTP 2.10RTP 2.12RTP 4.8RTP 4.10RTP 4.12RTP 4.16RTP 6.6RTP 6.8RTP 6.12RTP 6.12RTP 6.16

612203612204612206612208612406612210612212612408612410612412612416612606612608612612612613612616

5555555580555580808080

147147147147147

180180200264280324380370460540720580850

100012001300

858585

115145145178178178178178200320250500500

115115115145180180213213213260260

138138138168210210247247247290290

90909090

1309090

130130130130246246246246246

6688

101012121820203030303030

7779.5

12.512.51616161818

131528457772

103127178253330590

1140120022002500

18181823282828282832323232323235

60606080

100100120120120150150155220200360360


View from F XX’ Section

X

X’

A

K J DE E

T

F

B

S S

C GH

L

Alternative mount:

Ref. 526401∆60

The alternative mount 526401∆60 is softened.It’s radial stiffness is equal to 2/3 of the standardmounting ref. 522131∆60.

Warning: A coupling equipedwith the alterna-tive mounts 526401 can only transmit 80% ofthe torque of the standard version.


PARTS LIST

43

Couplingreference

Flexible studreference

Qty

3468

1012

68

101216

68

121216

QtyDisk

referenceQty

2222222222222222

351103351110351122351133351142351152351125351134351143351157351170351124351135351155351156351169

2222222222222222

522090 ∆ 60522090 ∆ 60522090 ∆ 60522090 ∆ 60522090 ∆ 60522090 ∆ 60522131 ∆ 60522131 ∆ 60522131 ∆ 60522131 ∆ 60522131 ∆ 60

522240 ∆ 45 and 60522240 ∆ 45 and 60522240 ∆ 45 and 60522240 ∆ 45 and 60522240 ∆ 45 and 60

Flangereference

321138321136321138321147321154321167321154321167321167321191321191321189321193321182321195321197

612203612204612206612208612210612212612406612408612410612412612416612606612608612612612613612616

Coupling partnumber

Flange fixingreference

Qty

11121111111

QtyElastic element

referenceQty

1122

2 - 1312

1 - 134

337217337208337211337208

337208 - 337228337208337215337232

337215 - 337232337232337232

Please consult ourTechnical Service

11341111134

1216242432

337216337206337209337206337565337229337675337229337233337676337676

Please consult ourTechnical Service

Locating sleevereference

337211337207337210337210337227337230337226337231337234337237337237351282351282351282351282351282

612203612204612206612208612210612212612406612408612410612412612416612606612608612612612613612616

Nominaltorque

N.m

470630

11001800250028004100450069009700

1750017500340006000072000

104000

235315550900

12501400205022503450485087508750

17000300003600052000

3° 10’3° 10’2° 50’2° 10’2° 15’1° 50’1° 30’1° 40’1° 25’1° 10’0° 502° 10’1° 30’1° 15’1°0° 50’

375500750

1000150012501500200025003000400030004000600060008000

300400600800

120010001200160020002400320018002400360036004800

105140210280330350420440550660880550730

110011001460

8.611.421.249.365.592.6

160152292482

1140458

1320270039006100

10.320.686

11486

229573460

1030

Vibrat.coupling

N.m


STIFFNESS

Axiale compr.daN/mm

Axial compres.daN/mm

Axial tensiondaN/mm

RadialdaN/mm

Torsionalm. KN/radian

1 Nm ≠ 0.1 mkg

Fixing for flanges and discs. Locating sleeves :

References writtenin bold are kept in stock.

Flexible studs, disk and flanges

Method :

• Mount each of the flanges onto the ends of the corresponding shafts.• Use the specially machined recess to centre the disks onto the flanges and screw together.• Attach the external armature of the studs to the appropriate disk.• Attach the internal armature of the studs to the other disk.

Note :

The slits i are designed to take the loose locating sleeves k to enable the individual flexiblestuds a to be mounted and removed radially.

Torque to be applied to the stud fixing bolts :

• Stud RTP2 : 522090 Ø 12 → 7.5 N.m.

• Stud RTP4 : 522131 Ø 16 → 18.5 N.m.

• Stud RTP6 : 522240 Ø 24 → 64.0 N.m.

ASSEMBLY

44

CORDIFLEX

• Flexible element :① 6 fairly hard natural rubber shaped support blocks, on the insideedge of the outer ring of the coupling.

• Flange :② inside flange has 6 arms which fit axially between the blocks by“blind axial” assembly.

• Outer ring :③ Ring with teeth that hold the blocks.

Standard SAE fixing and centring.

The CORDIFLEX coupling is designed to have the following features :

• Simplicity of design and assembly of the flexible elements making iteasy to vary the torsional stiffness simply by replacing the blocks.

Advantages :• SAE centring.• The coupling is very slim.

DESCRIPTION

OPERATION

45

* * * * * Push fit * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

②③

①

8 holes Ø 13

8 holes Ø 10.5

X

X’

45°

45°

Ø 333.4

Ø 352.4

Ø 310

Ø 466.7

Ø 1

41

Ø 1

20

Ø 9

0

Ø 3

10

12 h

oles

Ø 1

1

Ø 438.15

Ø 408

22° 30’

22° 30’

12.5

14.5

11.5

1011.5

38


NOTE : The technical data is identical for 14" and 11½" couplings for the same nominal torque.

DIMENSIONS


PARTS LIST

46

Nominal torqueN.m

600800

10001200

1200160020002400

3000300030003000

75757575

639012 40639012 41639012 42639012 43

639063 40639063 41639063 42639063 43

23232323

18181818

Max torqueN.m

Max speedrpm

Max holemm

Reference

14” 11” ½Wght

kgWght

kg

Nominaltorque

N.m

600

800

1000

1200

300

400

500

600

PUSH

FIT

30

45

60

75

675

800

1150

1430

Vibratorycoupling

N.m

STIFFNESS

AXIALRADIALdaN/mm

TORSIONALN.m/rad.

1 Nm ≠ 0.1 mkg - Tangente δ = 0.1

14” Coupling 11” ½ Coupling

Couplingreference

Couplingreference

639012 40

639012 41

639012 42

639012 43

639063 40

639063 41

639063 42

639063 43

819823 40

819823 41

819823 42

819823 43

819823 40

819823 41

819823 42

819823 43

6

6

6

6

6

6

6

6

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

321400

321400

321400

321400

321400

321400

321400

321400

322200

322200

322200

322200

322201

322201

322201

322201

Flexibleelement

reference

Flexibleelement

referenceQty Qty

Flangereference

Flangereference

Qty QtyDisk

referenceDisk

referenceQty Qty

SAE 11½”coupling

(SOLID HUB)

SAE 14“coupling

(SOLID HUB)

XX’ Section

degrees

∆ 68

∆ 60

∆ 50

∆ 45

0 2 4 6

Nm

2,000

1,000

TCN

TETRAFLEX Torque from 160 to 250 N.m.

• Flexible element comprising :① Natural rubber in the form of a cross.② A floating aluminium star, whose arms are bonded to the rubber.

• Mountings :③ 2 aluminium bosses, bonded to the rubber, which will beattachedto one of the machines.④ 2 aluminium bosses, bonded to the rubber, which will be attachedto the other machine.⑤ Band for precompressing the rubber before assembly.2 retaining bars are supplied although not shown in the photo.

The TETRAFLEX coupling is designed with the following features :

• Binary symmetry which allows considerable conical misalignmentto the order of 8°.

• Precompression of the rubber when assembled which limitsoperation under tension.

Advantages :The floating star allows :• Increased torque capacity without reducing the axial flexibility, hence

reduced size for a given torque.• Rotation at higher speeds as the star ensures that the arms are

anchored centrifugally.• The possibility of using a floating shaft (at moderate speed) as the

increased radial rigidity provides self-centering for the coupling.

DESCRIPTION

OPERATION

47

* * * * * * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

➁

➀

➂

➂

➃

➃

➄


Method :

• Attach the coupling to the flanges (not supplied), eg using bolts.• Install the centrifugal retaining bars supplied with the coupling.• Cut the band.

Compression is ensured by the mountings.• Replace the band before disassembling.• Mounting on floating shaft : the maximum conical misalignment allowed at 1500 rpm is :

10° for ref. 630400,6° for ref. 630408.

DIMENSIONS


ASSEMBLY

Nominaltorque

N.m

Vibrat.coupling

N.m


160

250

80

125

8

8

AXIALdaN/mm

RADIALdaN/mm

TORSIONALm.KN/rad.

CONICALm.KN/rad.

10

20

40

80

1.14

1.72

0.143

0.344

STIFFNESS

48

(1) for supported driving anddriven shafts (1500 rpm withfloating shaft).

Nominaltorque

N.m

160

250

400

600

6000 (1)

6000 (1)

110

110

70

90

630400

630408

77

77

16

16

59

79

Maxtorque

N.m

Maxspeedrpm

Amm

Bmm

Gmm

Jmm

FmmReference

X

A

J

F

G

B

X’

TETRAFLEXTorque from 1000 to 8000 N.m.

• Flexible element comprising :① Natural rubber in the form of a cross.② A floating aluminium or steel star, whose arms are bonded to therubber.

• Mountings :2 aluminium bosses, bonded to the rubber which will be attached toone of the machines.2 bosses bonded to the rubber which will be attached to the othermachine.

The TETRAFLEX coupling is designed with the following features :

• Binary symmetry which allows considerable conical misalignment.• The rubber is precompressed from manufacture which limits operation

under tension.

Advantages :The floating star allows :• Increased torque capacity without reducing the axial flexibility, hence

reduced size for a given torque.• Rotation at higher speeds as the star ensures that the arms are

anchored centrifugally.• A good torque/speed ratio.

DESCRIPTION

OPERATION

49

* * * * * * * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

➀

➁

The maximum torque is considered to be a dynamic infrequent torque and of short duration.

Can be mounted on units that are badly misaligned.These couplings must not be mounted on floating shafts.


DIMENSIONS

ASSEMBLY

Nominaltorque

N.m

Vribatorycoupling

N.m


2000

2500

4000

6000

1000

1250

2000

3000

7

8

8

9

AXIALdaN/mm

RADIALdaN/mm

TORSIONALm.KN/rad.

10

13

21

26

44

40

72

86

17

18

29

38

STIFFNESS

1 Nm ≠ 0.1 mkg

50

Nominaltorque

N.m2000

2500

4000

6000

3000

3700

6000

9000

3500

3000

3000

3000

350

400

408

420

90

85

108

130

630802

630419

630470

630420

253

352

358

350

14.2

16

17

18

90

62

86

88

58

55

48

50

-

190

170

185

MaxTorque

N.m

Maxspeedrpm

Amm

Bmm Reference G

mmJ

mmF

mmW

mmX

mm

1 Nm ≠ 0.1 mkg.

G F

X

W

J

BA

AXOFLEX

• Flexible element comprising a variable number of flexible bushes,depending on the torque to be transmitted.① Inner with tapped or smooth holes (normal mounting or onflywheel).② Precompressed natural rubber bonded to inner 1 and to outer thehalf-cylinders ③.③ Half-cylinders bonded to the rubber.④ Outer housing ensuring precompression of rubber by exertingpressure on the half-cylinders ③.

• Steel disks :⑤ Flange to which the inner studs are attached (normal mounting).⑥ Disk to which the studs are attached (flywheel mounting).

• Die cast steel hubs :⑦ The two hubs are identical. They may be bolted to disks ⑤ or ⑥depending on the mounting used.

The AXOFLEX coupling is designed with the following features :

• Radial disassembly without moving the machines that are coupled(usually very large machines).

• Precompression of the rubber which limits operation under tension.

Advantages :• Good axial flexibility which allows great axial displacement, for

example in the case of conical rotor machines.

DESCRIPTION

OPERATION

51

* * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility

➆ ➅ ➄ ➅ ➃ ③ ➀ ➁ ➄

F

D KJ

SS

T

HE

B

CGE

X’

X

2 holesØ M 12

2 holesØ M 12

HoleØ 14.2

Ø M 14

40

55

90

60

A

X’

X

X’

X F

D KJ

S

T

H

B

GE

A

trou Ø 40

40

55

90

60

X’

X

C

-See current price list for availibility of items.

DIMENSIONS AXO2

52

AXO 2V Flywheel coupling

AXO 2 Coupling

Nominaltorque

N.m

600800

1300230036005000

12001600260046007200

10000

300030003000250025002000

181823232828

60608080

100120

270270300364424475

181181235235274345

138138145145164200

8686

115115145177

60608585

102136

615203615204615206615208615210615212

615253615254615256615258615260615262

555555555555

180180200268324380

115115145145180213

138138168168210247

779.59.5

12.516

1415284572

103

6688

1012

8585

115115145178

Maxtorque

N.m

Maxspeedrpm

Hole sizeC mm

B mmtypeA

mmD

mmE

mmF

mmG

mmH

mmJ

mmK

mmS

mmT

mm

Weightstand.

coupling

Ref.Standardcoupling

RefFlywheelcouplingmin stan.max flyw.

XX’ Section

XX’ Section

XX’ Section

XX’ Section

AXO 2 stud N° 525210 Weight : 0.9 kg

AXO 2V stud N° 525211 Weight : 0.9 kg

Ø M16

F

D KJ

SS

T

HE

B

CGE

X’

X

F

D KJ

S

T

H

B

CGE

X’

X

A

A

120°

42

X’

X120°

Nominaltorque

N.m

5000750012000120001750017500240002400040000

Maxtorque

N.m

100001500024000240003500035000

Maxspeedrpm

180018001500150015001500140014001200

Amm

4805136226227207208408401040

Dmm

145177177210210240240285285

Emm

102136136155155215215240240

Fmm

606060606060606060

Gmm

340373482482580580700700900

Hmm

145178178178178240240240240

Jmm

180213213260260290290335335

Kmm

210247247290290335335380380

Smm

101016161616202030

Tmm

12.51616181824244040

Weightstand.

coupling

80115178200240300400500700

Ref.Standardcoupling

615406615408615410615440615412615442615414615444615418

Ref.Flywheelcoupling

615456615458615460615490615462615492615464615494615468

Bmm

st.

279346358396396516524570590

fly.

170203209228228288292315325

Hole sizeC mm

mini

282828323236363636

maxi

100120120150150170170200200

DIMENSIONS AXO4

53



AXO 4 Coupling

AXO 4V Flywheel coupling

XX’ Section

XX’ Section

XX’ Section

XX’ Section

AXO 4 stud N° 525400 Weight : 2.7 kg

AXO 4V stud N° 525403 Weight : 2.7 kg

AXO 4

AXO 4V

Ø clearance

160

Ø centres

160

Ø M16

clearance 200

2 holesØ M14

clearance 200

clearance 200

2 holes

Ø 14,2

Hole Ø 90

2 holesØ 14.5

2 holesØ 14.5

Nominaltorque

N.m

Vibrat;coupling

N.m


STIFFNESS

AXIALdaN/mm

22

30

45

75

100

150

10.9

14.3

25.8

RADIALdaN/mm

TORSIONALm.KN/rad.

3° 30’

3° 30’

3°

600

800

1300

300

400

650

Nominaltorque

N.m

Vibrat;coupling

N.m


STIFFNESS

AXIALdaN/mm

1° 50’

1° 40’

1° 20’

360

480

600

157

252

528

RADIALdaN/mm

TORSIONALm.KN/rad.

1° 50’

1° 40’

1° 20’

5000

8000

12000

2500

4000

6000

Nominaltorque

N.m

Vibrat;coupling

N.m


STIFFNESS

AXIALdaN/mm

200

240

300

720

850

1100

916

1550

3300

RADIALdaN/mm

TORSIONALm.KN/rad.

1°

0° 50’

0° 40’

17500

24000

40000

8750

12000

20000

Nominaltorque

N.m

Vibrat;coupling

N.m


STIFFNESS

AXIALdaN/mm

60

75

90

210

250

300

53.3

114.6

190

RADIALdaN/mm

TORSIONALm.KN/rad.

2° 20’

2°

1° 50’

2300

3600

5000

1150

1800

2500

OPERATING LIMITS

OPERATING CHARACTERISTICS AXO 2

OPERATING CHARACTERISTICS AXO 4

Nominal torqueN.m600800

13002300360050007500

1200017500

Axial displacementat 1500 rpm

2 mn2 mn2 mn2 mn2 mn3 mn3 mn3 mn3 mn

54

1 Nm ≠ 0.1 mkg

1 Nm ≠ 0.1 mkg

AXIAL DISPLACEMENT


Power Kw

speedrpm

2,000

1,000

500

200

100

50

2

1

AXO 2

-12

AXO 4

-6

AXO 4

-8

AXO 4

-10

AXO 4

-12

AXO 2

-6AXO

2-4

AXO 2

-3

AXO 2

-10

AXO 2

-8

100 200 500 1,000 2,000 5,000 10,000

αdegrees

200αG = α200 x _____Gmm

(G : Ø stud fixing centres)

Speedrpm

3

2

1

0 500 1,000 2,000 3,000

α 600

α 400

α 200

Couplingreference


Flangereference

Diskreference

Quantity Quantity Quantity

Quantity Quantity QuantityCouplingreference


Flangereference

Diskreference

615203615204615206615208615210615212615253615254615256615258615260615262

525210525210525210525210525210525210525211525211525211525211525211525211

321138321136321147321147321154321167321138321136321147321147321154321167

351026 - 351027351028 - 351029351011 - 351012351013 - 351014351015 - 351016351017 - 351018

351042351043351044351045351046351047

3468

1012

3468

1012

222222111111

1 - 11 - 11 - 11 - 11 - 11 - 1

111111

68

10121418101214

68

10121418101214

222222222111111111

1 - 11 - 11 - 11 - 11 - 11 - 11 - 11 - 11 - 1

111111111

615406615408615410615412615414615418615440615442615444615456615458615460615462615464615468615490615492915494

525400525400525400525400525400525400525400525400525400525403525403525403525403525403525403525403525403525403

321154321167321167321191324602324601321191324602324601321154321167321167321191324602324601321191324602324601

351665 - 351666351667 - 351668351663 - 351664351659 - 351660351655 - 351656351651 - 351652351661 - 351662351657 - 351658351653 - 351654

351669351670351671351672351675351677351673351676351674

Method : (normal)

• Attach each of the flanges to the ends of the appropriate shafts.• Use the specially machined recess to centre the disks onto the flanges and screw together.• Attach the external armature of the studs to the appropriate disk.• Attach the internal armature of the studs to the other disk.

Torque for the bolts attaching the studs.Ø 12 → 75 N.m Ø 14 → 122 N.m Ø 12 → 185 N.m

Method : (flywheel)

• Mount the flange onto the shaft end.• Bolt the disk onto the flange.• Attach the external armature of the studs to the disk.• Attach the internal armature of the studs to the flywheel of the second machine.

PARTS LIST

ASSEMBLY

55

n holes Ø J

n holes Ø J

AA

GG

For couplings used with internal combustion engines (generating sets, motorised pumps)attachment flanges can be used to connect directly to the engines' flywheels. On request we cansuggest couplings with flanges that conform to the SAE standard :

Examples of assemblies

JUBOFLEX AXOFLEX

56

SAE

6½ 215.90 200.00 6 x 8,5

7½ 241.30 222.30 8 x 8,5

8 263.52 244.50 6 x 10,5

10 314.40 295.30 8 x 10,5

11½ 352.40 333.40 8 x 10,5

14 466.70

517.52

438.15 8 x 13

16 489.00 8 x 13

Ø A 17 Ø G n x J

SAE FLANGES

MOUNTING ON SAE FLANGES

A

X’

X

B

SS F

EED

HC G

SPARE PARTS

RADIAFLEX R COUPLING

57

Nominaltorque

N.m

0.810305080

120160220300550

105014602320

Maxspeedrpm

4000400030003000300030003000250020001500150015001500

4580

172172187187248248240300395430475

4059

120120138138166166190240275356366

3360

114114130130190190180236330340380

--50507070858585

115145178178

204073736969909090

115145177177

363366888

12161212

35444444888

1012

15203838464660606085

102.5136136

610503610406611113611213611116611216611108611208611408611412611416611512611612

521128521201521571521572521571521572521571521572521602521602521602521801521951

15194444444444446060607076

5000

181818181823282828

10263838484860606080

100120120

Amm

Bmm

Dmm

Emm Qty F

mmG

mmH

mmS

mmCouplingreference

Flexiblestud

reference

Hole sizeC mm

min max

XX’ Section

1 Nm ≠ 0.1 mkg

GV COUPLING

58

SPARE PARTS

A

C

B

F

ED

H

G

Nominaltorque

N.m

80450

1000380054009000

900070005000350030002500

102435353540

356070

120140180

5685

100170200250

6080

110150160190

3570

115120120120

76130150250300400

G.V.10-8G.V.40-8G.V.80-8

G.V.150-10G.V.150-12G.V.150-16

613101613400613800613901613902613903

523102523401523801523902523902523902

100180220330380480

125170235320340400

163240505050

Maxspeedrpm

Amm

Bmm

Dmm

Emm Type

Couplingreference

Studreference

Fmm

888

101216

Nberof

studs

Gmm

Hmm

Hole sizeC mm

min max

1 Nm ≠ 0.1 mkg

Recommended in case of very high speed of rotation.

Designation

GV coupling

GV coupling

GV coupling

GV coupling

GV coupling

GV coupling

Radiaflex R coupling













Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Axoflex

Cardaflex

Cardaflex

Cardaflex

Cardaflex

Cardaflex

Cardaflex

Cardaflex

Cardaflex

Cardaflex

Reference

613101

613400

613800

613901

613902

613903

610406

610503

611108

611113

611116

611208

611213

611216

611408

611412

611416

611512

611612

615203

615204

615206

615208

615210

615212

615253

615254

615256

615258

615260

615262

615406

615408

615410

615412

615414

615418

615440

615442

615444

615456

615458

615460

615462

615464

615468

615490

615492

615494

622308

622310

622311

622312

622315

622320

622325

622401

622402

Page

58

58

58

58

58

58

57

57

57

57

57

57

57

57

57

57

57

57

57

52-55

52-55

52-55

52-55

52-55

52-55

52-55

52-55

52-55

52-55

52-55

52-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

53-55

38

38

38

38

38

38

38

38

38

Designation

Cardaflex

Cardaflex

Cardaflex

Cardaflex

Cardaflex

Cordiflex

Cordiflex

Flexible element Cardaflex














Flexible element Cordiflex

Flexible element Juboflex








Flexible element Juboflex ‘S








Flexible element Miniflex





Flexible element MPP





Flexible element Straflex








Reference

622403

622404

622405

622406

622407

639012

639063

622108

622110

622111

622112

622115

622120

622125

622208

622210

622211

622212

622215

622220

622225

819823

632500

632502

632503

632505

632507

632508

632511

632520

632550

632551

632552

632553

632554

632555

632556

632557

633501

633510

633520

633540

633640

633551

633552

633553

633554

633555

635619

635631

635632

635633

635634

635635

635636

635637

Page

38

38

38

38

38

46

46

38

38

38

38

38

38

38

38

38

38

38

38

38

38

46

22

22-24

22-24

22-24

22-24

22

22

22

28

28

28

28

28

28

28

28

14

14

14

14

14

18

18

18

18

18

30

30

32

32

32

32

30

30

Designation

Flexible element Torsoflex




Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Reference

682580

682600

682620

682640

322200

322201

351011

351012

351013

351014

351015

351016

351017

351018

351026

351027

351028

351029

351042

351043

351044

351045

351046

351047

351103

351110

351122

351124

351125

351133

351134

351135

351142

351143

351152

351155

351156

351157

351169

351170

351651

351652

351653

351654

351655

351656

351657

351658

351659

351660

351661

351662

351663

351664

351665

351666

351667

351668

Page

36

36

36

36

46

46

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

43

43

43

43

43

43

43

43

43

43

43

43

43

43

43

43

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

59

ALPHABETIC INDEX

Designation

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Disk

Juboflex

Juboflex

Juboflex

Juboflex

Juboflex

Juboflex

Juboflex

Juboflex

Juboflex with separate hub




Juboflex ‘S

Juboflex ‘S

Juboflex ‘S

Juboflex ‘S

Juboflex ‘S

Juboflex ‘S

Juboflex ‘S

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Reference

351669

351670

351671

351672

351673

351674

351675

351676

351677

623017

623023

623025

623027

623029

623031

623043

623320

632205

632210

632217

632226

632260

632261

632262

632263

632264

632265

632266

321136

321138

321147

321154

321167

321182

321189

321191

321193

321195

321197

321314

321315

321316

321324

321325

321326

321334

321335

321336

321344

321345

321346

321354

321364

321374

321390

321401

Page

55

55

55

55

55

55

55

55

55

22

22

22

22

22

22

22

22

24

24

24

24

28

28

28

28

28

28

28

43-55

43-55

36-43-55

36-43-55

36-43-55

43

43

36-43-55

43

43

43

22

30

24-32

22

30

24

22

30

24

22

30

24

22

22

22

22

46

Designation

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Flange

Round flange

Round flange

Round flange

Round flange

Round flange

Round flange

Triangular flange

Triangular flange

Triangular flange

Triangular flange

Triangular flange

Triangular flange

Miniflex

Miniflex

Miniflex

Miniflex

Miniflex

Miniflex

Miniflex

Miniflex

MPP

MPP

MPP

MPP

MPP

Flexible stud Axoflex




Flexible stud GV

Flexible stud GV

Flexible stud GV

Flexible stud GV

Flexible stud Radiaflex




Reference

321464

321465

321501

321503

321511

321521

321531

321534

321535

321815

321819

321826

321827

324601

324602

331100

331106

331107

321621

321631

321641

321651

321661

321671

321626

321636

321646

321656

321666

321676

633010

633020

633038

633039

633040

633041

633044

633047

633051

633052

633053

633054

633055

525210

525211

525400

525403

523102

523401

523801

523902

521128

521201

521571

521572

Page

18

18

14

14-18

14

14

14

14-18

14-18

32

32

30

32

55

55

30

30

30

38

38

38

38

38

38

38

38

38

38

38

38

14

14

14

14

14

14

14

14

18

18

18

18

18

52-55

52-55

52-55

52-55

58

58

58

58

57

57

57

57

Designation




Flexible stud RTP

Flexible stud RTP

Flexible stud RTP

Flexible stud RTPA 4

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Radiaflex RTP

Disassembly band

Disassembly band

Disassembly band

Disassembly band

Disassembly band

Disassembly band

Disassembly band

Disassembly band

Straflex

Straflex

Straflex

Straflex

Straflex

Straflex

Straflex

Straflex

Straflex with separate hub




Tetraflex

Tetraflex

Tetraflex

Tetraflex

Tetraflex

Tetraflex

Torsoflex

Torsoflex

Torsoflex

Torsoflex

Reference

521602

521801

521951

522090

522131

522240

526401

612203

612204

612206

612208

612210

612212

612406

612408

612410

612412

612416

612606

612608

612612

612613

612616

331240

331241

331242

331243

331244

331245

331246

331247

635100

635105

635106

635107

635301

635302

635303

635304

635305

635306

635307

635308

630400

630408

630419

630422

630425

630470

682080

682100

682120

682140

Page

57

57

57

43

43

43

43

42

42

42

42

42

42

42

42

42

42

42

42

42

42

42

42

22

22-24-28

22-24-28

22-24-28

22-24-28

22

22

22

30

30

30

30

30

30

30

30

32

32

32

32

48

48

50

50

50

50

36

36

36

36

60

Désignation

FlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlangeFlange

Round flangeTriangular flangeRound flangeTriangular flangeRound flangeTriangular flangeRound flangeTriangular flangeRound flangeTriangular flangeRound flangeTriangular flange

FlangeFlangeFlangeFlange

DiskDisk

FlangeFlangeFlangeFlangeFlange

Disassembly bandDisassembly band

Reference

321136321138321147321154321167321182321189321191321193321195321197321314321315321316321324321325321326321334321335321336321344321345321346321354321364321374321390321401321464321465321501321503321511321521321531321534321535

321621321626321631321636321641321646321651321656321661321666321671321676

321815321819321826321827

322200322201

324601324602331100331106331107

331240331241

Page

43-5543-55

36-43-5536-43-5536-43-55

4343432230

24-322230242230242230242230242222222246181814

14-18141414

14-1814-18

383838383838383838383838

32323032

4646

5555303030

2222-24

61

NUMERIC INDEXDesignation

Disassembly bandDisassembly bandDisassembly bandDisassembly bandDisassembly bandDisassembly band

DiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDiskDisk

Reference

331242331243331244331245331246331247

351011351012351013351014351015351016351017351018351026351027351028351029351042351043351044351045351046351047351103351110351122351124351125351133351134351135351142351143351152351155351156351157351169351170351651351652351653351654351655351656351657351658351659351660351661351662351663351664351665351666351667351668351669351670351671351672351673

Page

22-2422-24

22222222

555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555555

Designation

DiskDiskDiskDisk

Flexible stud RadiaflexFlexible stud RadiaflexFlexible stud RadiaflexFlexible stud RadiaflexFlexible stud RadiaflexFlexible stud RadiaflexFlexible stud Radiaflex

Flexible stud RTPFlexible stud RTPFlexible stud RTP

Flexible stud GVFlexible stud GVFlexible stud GVFlexible stud GV

Flexible stud RadiaflexFlexible stud RadiaflexFlexible stud RadiaflexFlexible stud Radiaflex

Flexible stud RTPA 4

Radiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R couplingRadiaflex R coupling

Radiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTPRadiaflex RTP

GV couplingGV couplingGV couplingGV couplingGV couplingGV coupling

AxoflexAxoflexAxoflexAxoflex

Reference

351674351675351676351677

521128521201521571521572521602521801521951

522090522131522240

523102523401523801523902

525210525211525400525403

526401

610406610503611108611113611116611208611213611216511408611412611416611512611612

612203612204612206612208612210612212612406612408612410612416612606612608612613612616

613101613400613800613901613902613903

615203615204615206615208

Page

55555555

57575757575757

434343

58585858

52-5552-5552-5552-55

43

57575757575757575757575757

4242424242424242424242424242

585858585858

52-5552-5552-5552-55

Designation

AxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflexAxoflex

Flexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element CardaflexFlexible element Cardaflex

CardaflexCardaflexCardaflexCardaflexCardaflexCardaflexCardaflexCardaflexCardaflexCardaflexCardaflex

Reference

615210615212615253615254615256615258615260615262615406615408615410615412615414615418615440615442615444615456615458615460615462615464615468615490615492615494

622108622110622111622112622115622120622125622208622210622211622212622215622220622225

622308622310622311622312622315622320622325622401622402622403622404

Page

52-5552-5552-5552-5552-5552-5552-5552-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-5553-55

3838383838383838383838383838

3838383838383838383838

62

Designation

CardaflexCardaflexCardaflex

TétraflexTétraflexTétraflexTétraflexTétraflexTétraflex

JuboflexJuboflexJuboflexJuboflexJuboflexJuboflexJuboflex

Juboflex with separate hubJuboflex with separate hubJuboflex with separate hubJuboflex with separate hub

Juboflex ‘SJuboflex ‘SJuboflex ‘SJuboflex ‘SJuboflex ‘SJuboflex ‘SJuboflex ‘SJuboflex ‘S

Juboflex

Flexible element JuboflexFlexible element JuboflexFlexible element JuboflexFlexible element JuboflexFlexible element JuboflexFlexible element JuboflexFlexible element JuboflexFlexible element Juboflex

Flexible element Juboflex ‘SFlexible element Juboflex ‘SFlexible element Juboflex ‘SFlexible element Juboflex ‘SFlexible element Juboflex ‘SFlexible element Juboflex ‘SFlexible element Juboflex ‘SFlexible element Juboflex ‘S

MiniflexMiniflexMiniflexMiniflex

Reference

622405622406622407

630400630408630419630420630470630802

632017632023632025632027632029632031632043

632205632210632217632226

632260632261632262632263632264632265632266632267

632320

632500632502632503632505632507632508632511632520

632550632551632552632553632554632555632556632557

633010633020633038633039

Page

383838

484850505050

22222222222222

24242424

2828282828282828

28

2222-2422-2422-2422-24

222222

2828282828282828

14141414

Designation

MiniflexMiniflexMiniflexMiniflex

MPPMPPMPPMPP

Flexible element MiniflexFlexible element MiniflexFlexible element MiniflexFlexible element Miniflex

Flexible element MPPFlexible element MPPFlexible element MPPFlexible element MPPFlexible element MPP


StraflexStraflexStraflexStraflexStraflexStraflexStraflexStraflex

Straflex with separate hubStraflex with separate hubStraflex with separate hubStraflex with separate hub

Flexible element StraflexFlexible element StraflexFlexible element StraflexFlexible element StraflexFlexible element StraflexFlexible element StraflexFlexible element Straflex

CordiflexCordiflex

TorsoflexTorsoflexTorsoflexTorsoflex

Flexible element TorsoflexFlexible element TorsoflexFlexible element TorsoflexFlexible element TorsoflexFlexible element Torsoflex

Reference

633040633041633044633047

633051633052633054633055

633501633510633520633540

633551633552633553633554633555

633640

635100635105635106635107635301635302635303635304

635305635306635307635308

635619635631635632635633635634635636635637

639012639063

682080682100682120682140

682580682600682620682640682823

Page

14141414

18181818

14141414

1818181818

14

3030303030303030

32323232

3030

30-3230-3230-32

3030

4646

36363636

3636363636

POWERGENERATIONLEAFLET

MARINE / NAVYLEAFLET

OTHER PAULSTRA DOCUMENTATIONAvailable upon request

AEROSPACEAND DEFENCECATALOG

FLEXIBLEMOUNTINGSCATALOG

FLEXIBLEBUSHESCATALOG

METALMOUNTINGSCATALOG

INDUSTRIALVEHICLESLEAFLET

RAILWAYCATALOG

OFFSHORECATALOG

Documents

FLEXIBLE COUPLINGS - Vibrachoc€¦ · - GENERAL When transmitting torque from a drive shaft to a driven shaft, flexible couplings : •absorb and dampen irregularitiesin the torque,