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
st fo
r av
aila
bil
ity
of i
tem
s.W
e r
ese
rve
th
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igh
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anuf
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f th
e p
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ucts
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ate
rial
s d
esc
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in
this
cat
alo
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.Th
e p
ictu
res
of t
he p
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ucts
are
sup
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form
atio
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Th
e o
rde
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mp
rise
s :
- th
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igne
d b
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oth
par
ties
, or
the
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an
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gem
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of r
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- ev
entu
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sp
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spec
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, ava
ilab
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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: K 1=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: K 1=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
Torsionunder NTdegrees
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
OPERATING CHARACTERISTICS
* 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
MPP 65MPP 65MPP 65MPP 38
MPP 65MPP 65MPP 65MPP 65
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
* * * * * * * * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility
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
OPERATING CHARACTERISTICS
NominaltorqueN.m
Vibratorycoupling
N.m
Torsionunder NTdegrees
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
CONICAL MISALIGNMENTPOWER RANGE
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
* * * * * * * * * * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility
27
➁ ➀ ➂ ➃
28
1 N.m ≠ 0.1 mkg See current price list for availability of items.* Diameter of passage in flexible element under the nominal torque.
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.
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
1 Nm ≠ 0.1 mkg See current price list for availability of items.
The maximum torque is considered to be an infrequent start-up torque and is not periodic.
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
32
* 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
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 N.m ≠ 0.1 mkg
M
XGA
H
E
L
F Z
J
B
KD
0.080.1140.20.290.571.432.33.44
OPERATING LIMITS
OPERATING CHARACTERISTICS
Nominaltorque
N.m
Vibrat.coupling
N.m
Torsionunder NTdegrees
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
35
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 collar ④ .
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
* * *Radial flexibility Axial flexibilityTorsional flexibility Conical flexibility
⑤ ① ② ③ ④
36
1 N.m ≠ 0,1 mkg See current price list for availability of items.
The maximum torque is considered to be an infrequent start-up torque and is not periodic.
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
OPERATING CHARACTERISTICS
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
Torsionunder NTdegrees
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 N.m ≠ 0.1 mkg 1 daN � 1 kg
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.③Triangular 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
The maximum torque is considered to be an infrequent start-up torque and is not periodic.
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
OPERATING CHARACTERISTICS
POWER RANGE
Nominaltorque
N.m
Vibrat.coupling
N.m
Torsionunder NTdegrees
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
The maximum torque is considered to be an infrequent start-up torque and is not periodic.
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
1 Nm ≠ 0.1 mkg See current price list for availability of items.
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.
OPERATING CHARACTERISTICS
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
Torsionunder NTdegrees
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:
44
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 � are designed to take the loose locating sleeves � to enable the individual flexiblestuds � 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
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
The maximum torque is considered to be an infrequent start-up torque and is not periodic.
NOTE: The technical data is identical for 14" and 11½" couplings for the same nominal torque.
DIMENSIONS
OPERATING CHARACTERISTICS
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
The maximum torque is considered to be an infrequent start-up torque and is not periodic.
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
OPERATING CHARACTERISTICS
ASSEMBLY
Nominaltorque
N.m
Vibrat.coupling
N.m
Torsionunder NTdegrees
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.
OPERATING CHARACTERISTICS
DIMENSIONS
ASSEMBLY
Nominaltorque
N.m
Vribatorycoupling
N.m
Torsionunder NTdegrees
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
52
-See current price list for availibility of items.
DIMENSIONS AXO2
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.
F
D KJ
SS
T
H
E
B
CG
E
X’
X
AXO 2V Flywheel coupling
AXO 2 Coupling
XX’ Section
XX’ Section
XX’ Section
XX’ Section
AXO 2V stud N° 525211 Weight: 0.9 kg
2 holesØ M12
2 holesØ M12
HoleØ 14.2
Ø M14
AXO 2 stud N° 525210 Weight: 0.9 kg
40
55
90
60
A
X’
X
X’
X F
D KJ
S
T
H
B
G
E
A
Hole Ø 40
40
55
90
60
X’
X
C
AXO 2
AXO 2V
53
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
1 N.m ≠ 0.1 mkg See current price list for availability of items.
The maximum torque is considered to be an infrequent start-up torque and is not periodic.
Ø M16
clearance 200
Ø M16
clearance 200
2 holesØ M14
clearance 200
2 holes
Ø 14.2
Hole Ø 90
2 holesØ 14.5
F
D KJ
SS
T
H
E
B
CG
E
X’
X
F
D KJ
S
T
H
B
CGE
X’
X
A
A
120°
42
X’
X120°
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 clearance
160
X’
X2 holesØ 14.5
120°
42
120°
52
60
52
60
54
Nominaltorque
N.m
Vibrat;coupling
N.m
Torsionunder NTdegrees
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
Torsionunder NTdegrees
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
Torsionunder NTdegrees
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
Torsionunder NTdegrees
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
1 N.m ≠ 0.1 mkg 1 daN � 1 kg
1 N.m ≠ 0.1 mkg 1 daN � 1 kg
AXIAL DISPLACEMENT
CONICAL MISALIGNMENTPOWER RANGE
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
Flexible studreference
Flangereference
Diskreference
Quantity Quantity Quantity
Quantity Quantity QuantityCouplingreference
Flexible studreference
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
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R coupling
Radiaflex R 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 Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cardaflex
Flexible element Cordiflex
Flexible element Juboflex
Flexible element Juboflex
Flexible element Juboflex
Flexible element Juboflex
Flexible element Juboflex
Flexible element Juboflex
Flexible element Juboflex
Flexible element Juboflex
Flexible element Juboflex ‘S
Flexible element Juboflex ‘S
Flexible element Juboflex ‘S
Flexible element Juboflex ‘S
Flexible element Juboflex ‘S
Flexible element Juboflex ‘S
Flexible element Juboflex ‘S
Flexible element Juboflex ‘S
Flexible element Miniflex
Flexible element Miniflex
Flexible element Miniflex
Flexible element Miniflex
Flexible element Miniflex
Flexible element MPP
Flexible element MPP
Flexible element MPP
Flexible element MPP
Flexible element MPP
Flexible element Straflex
Flexible element Straflex
Flexible element Straflex
Flexible element Straflex
Flexible element Straflex
Flexible element Straflex
Flexible element Straflex
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
Flexible element Torsoflex
Flexible element Torsoflex
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 with separate hub
Juboflex with separate hub
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 Axoflex
Flexible stud Axoflex
Flexible stud Axoflex
Flexible stud GV
Flexible stud GV
Flexible stud GV
Flexible stud GV
Flexible stud Radiaflex
Flexible stud Radiaflex
Flexible stud Radiaflex
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 Radiaflex
Flexible stud Radiaflex
Flexible stud Radiaflex
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
Straflex with separate hub
Straflex with separate hub
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
Flexible element Miniflex
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