Coupling John Crane

8/18/2019 Coupling John Crane

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John Crane France

Written byF. CRAMILLY

Checked byBASCOUL P.

Approval byBASCOUL P

BE 40-111 Ed. 01.2003

FITTING AND MAINTENANCE

INSTRUCTIONS

HIGH PERFORMANCE COUPLINGS

T_JE AND T_GE (*)

(*) can be also T_JW or T_GW


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The high performance type coupling is a precision built coupling comprising two flexible membranes assembliesconnected by a torque tube. The flexible membranes are in stainless steel, the bolts in high tensile steel and the

other components forged and machined in high tensile steel.

The T-GE range has replaceable balanced membrane units and a detachable spacer component. The T-JE range

has a one piece transmission unit.

WARNING : The drive bolts should never be unfitted, otherwise JOHN CRANE FRANCE would be free from

its warranty obligation.


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1. During transport, handling and storage, the gagging sleeves (painted red for identification) should be in position.

2. The coupling should be stored horizontally and should not be kept on end for long periods.

3. Avoid shocks during handling and protect against corrosion if stored for long periods.

4. The coupling is normaly sent in standard packaging (packing with flakes or foam) with included copy of the

general arangement drawing and on request a balancing certificate. The hub bores are protected by protective

coating which must be removed before fitting on site.

GENERAL INSTALL ATION PROCEDURE

1. All couplings have to be controled on receipt, insure that :

a) no part is damaged and spigots and recesses are free from burrs and any signs of shock.

b) gagging sleeve and screws are in position

c) membrane units are matched marked to the spacer.

2. Set the distance between shaft ends (D.B.S.E.) taking into account any axial movement of the driving or driven

shafts when this is applicable.

3.for the machines and coupling’s expansion, see the mounting’s drawings ( at cold) and the notes located on

the general arrangement drawing.

INSTALLATI ON OF T-GE RANGE WITH REMOVABLE SPACER

1. Remove the spacer piece from the membrane units. Tapped holes are provided in the spacer piece flange as

jacking points, to assist in breaking the spigot/recess location.

2. Identify the driving and driven end transmission unit and fit it on the shaft.

For the fit hubs (hydraulic fitting) follow the usual procedure (customer's procedure). For the parallel bored and

keywayed hubs, John Crane France normally supply hubs machine to give a light interference fit with the

associated shaft. On fitting these hubs, expand hub bore by heating (without direct flam but a warm oil bath with

usually be adequate). Don’t exceed

175° C / 352°F .

3. Check that the hub spigots are concentric to the centre of rotation to .05 mm / 0,002 inch T.I.R. (.025 mm /

0,001 inch TIR for coupling speed greater than 10000 rpm) or better and that the maximum run-out or swash is

within

.05 mm / 0,002 inch (.025 mm / 0,001 inch TIR for coupling speed greater than 10000 rpm)

It is advised to respect the alignement within 10 % or less of the values given on the general drawing.

4. When shims or shim-carriers are used see respectively appendix III and appendix IV.


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5. If the customer ; have to realize dynamic test of the driver ,with fitting the spigot washer, make sure that it isremoved before continuing opérations.

6. Remove the gagging screws and gagging sleeves from the membrane unit assemblies. Using the gagging

screws compress each membrane unit assembly by equal amounts, until the distance between the guard ring

flanges is equal to dimension 'x' as shown on appendix 1, thus enabling the spacer piece to be inserted between

the hubs.

7. Bring the spacer piece into position, between the membrane units. If the coupling is balanced be careful that

matched marks are in position.

8. Fit the spacer to one membrane unit and insert the bolts. It is important that the spigots and recesses be

engaged parallel and square to the flange faces, before tightening the bolts.

Tighten the bolts to the torque values given in appendix II.

Remove the gagging screws and repeat the above procedure on the remaining spacer/membrane unit interface.

DO NOT tighten the bolts with the gagging screws in position.

IMPORTANT The spacer piece must be supported throughout the above procedure to ensure that the weight is

never imposed on one bolted end only.

9. With the transmission unit bolted in position, check that the 'as fitted' concentricities correspond closely with

those quoted on the balancing certificate. If this document is not applicable ensure that all flanges are set up to

the centre of rotation as concentric as possible. A figure of .05 mm / 0,002 inch T.I.R. (.025 mm / 0,001 inch

TIR for coupling speed greater than 10000 rpm) should not be exceeded.

10. Safely store the gagging screws and sleeves for future use.

INSTALLATI ON OF T-JE RANGE WITH NON-REMOVABLE SPACER

1. Identify the driving and driven end of the transmission unit and fit them on the shaft. For the fit hubs

(hydraulic fitting) follow the usual procedure (customer's procedure). For the parallel bored and keywayed hubs,

John Crane France normally supply hubs machine to give a light interference fit with the associated shaft. Onfitting these hubs, expand hub bore by heating (without direct flam but a warm oil bath with usually be adequate).

Don’t exceed 175° C / 352°F .

Tapped holes are provided in the hub flanges so that the transmission units could be removed from the spigots.

2. Check that the hub spigots are concentric to the centre of rotation to 0.05 mm / 0,002 inch TIR (.025 mm /

0,001 inch TIR for coupling speed greater than 10000 rpm) or better and that the maximum run-out or swash is

within .05 mm / 0,002 inch (.025 mm / 0,001 inch TIR for coupling speed greater than 10000 rpm)

It is advised to respect the alignement within 10 % or less of the values given on the general drawing.


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3. When shims or shim-carriers are used see respectively appendix I and appendix II.

4. Remove the gagging screws and sleeves from the membrane unit assemblies. Using the gagging screws

compress each membrane unit assembly by equal amounts until the distance tetween the guard ring and spacer

flanges is equal to dimension'x' as shown on appendix 1, thus enabling the transmission unit to be inserted

between the hubs.

5. Bring the transmission unit into position between the hubs. If a balanced coupling has been supplied the

reference marks on the flanges must be lined up.

6. Remove the gagging screws and insert the hub bolts.

It is important that the spigots and recesses be engaged parallel and square to flange faces before tightening the

bolts.

Tighten the hub bolts to the torque values given in appendix 2.

The transmission unit must be supported throughout the above procedure to ensure that the weight is never

imposed on one bolted end only.

DO NOT tighten the bolts with the gagging screws in position.

7. With the coupling bolted in position, check that the 'as fitted' concentricities correspond closely with those

quoted on the Balancing Certificate.

If this document is not applicable ensure all flanges are set up to the centre of rotation as concentric as possible.

A figure of .05 mm / 0,002 inch TIR (025 mm / 0,001 inch TIR for coupling speed greater than 10000 rpm)

should not be exceeded.

8. Safely store the gagging screws and sleeves for future use.


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REMOVAL AND REPLACEMENT OF TRANSMI SSION UNI T

T-GE RANGE WITH REMOVABLE SPACER

1. Remove the membrane unit/spacer piece nuts and bolts. The spacer piece must be supported to ensure that the

weight is never imposed on one end only.

2. Using the gagging screws compress each membrane unit assembly by equal amounts until the distance between

the guard ring flanges is equal to dimension 'x' as shown on appendix 1. This will separate at least one of the end-

spigot locations, enabling the removal of the spacer.

3. Remove the gagging screws and refit them with the gagging sleeves onto the membrane units.

4. Remove the transmission unit. For the fit hubs (hydraulic fitting) follow the usual procedure (customer's

procedure).

For the parallel bored and keywayed hubs, puller holes are machined on the hub faces. A tool may be fitted on

these puller holes. If hub dismounting is too difficult, so expand these one by heating (without direct flam).

Warning, don’t exceed 100° C / 212°F and don’t heat membrane assemblies.

5. Re-assemble following the installation procedure given previously and attempt to reproduce the original

concentricities.


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T-JE RANGE WITH NON-REMOVABLE SPACER

1. Remove the transmission unit/hub nuts and bolts. The transmission unit must be supported to ensure that the

weight is never imposed on one end only.

2. Using the gagging screws compress each membrane unit assembly by equal amounts until the distance between

the guard ring flanges is equal to dimension'x' as shown on appendix 1. This will separate at least one of the end

spigot locations.

3. Remove the gagging screws and refit them with the gagging sleeves onto the membrane units.

4. Remove the transmission unit. For the fit hubs (hydraulic fitting) follow the usual procedure (customer's

procedure).

For the parallel bored and keywayed hubs, puller holes are machined on the hub faces. A tool may be fitted on

these puller holes.

5. Re-assemble following the installation procedure given previously and attempt to procedure the original

concentricitie


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APPENDIX I

X distance for couplings T-GE and T-JE

TSGE "X" TLGE "X" TTGE "X"

TSJE inch mm TLJE inch mm TTJE inch mm

0110 0,228 5.8

0240 0,267 6.8

0420 0,326 8.3 0600 0,327 8.3

0700 0,346 8.8 1000 0,354 9

1100 0,429 10.9 1500 0,453 11.5

1500 0,484 12.3 2100 0,531 13.5 2800 0,551 14

2100 0,512 13 3000 0,512 13 4000 0,590 15

2800 0,567 14.4 4000 0,590 15 5200 0,669 17

3600 0,618 15.7 5200 0,669 17 6700 0,728 18.5

6700 0.732 18.6 8700 0795 20.2

8500 0,807 20.5 9011 0,866 22

9012 0,866 22 9016 0,925 23.5

9017 1,031 26.2 9023 1,102 28

9026 1,185 30.1 9034 1,268 32.2

9034 1,272 32.3 9045 1,358 34.5

9042 1,398 35.5 9056 1,492 37.9


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APPENDIX II

Bolt tightening torque for couplings

T-JE and T-GE

TSGE TLGE TTGE T-GE T-JE

TSJE TLJE TTJE lb. f t N.m lb. f t N.m

110 7 10 7 10

240 7 10 7 10

420 600 7 10 7 10

700 1000 18 25 7 10

1100 1500 18 25 18 25

1500 2100 2800 59 80 18 25

2100 3000 4000 59 80 18 25

2800 4000 5200 59 80 59 80

3600 5200 6700 59 80 59 80

6700 8700 59 80 59 80

8500 9011 151 205 59 80

9012 9016 151 205 59 80

9017 9023 199 270 151 2059026 9034 199 270 151 205

9034 9045 199 270 151 205

9042 9056 199 270 151 205

Tightening torque for

transmission unit and spacer

Tightening torque for bolt between hub

and transmission unit


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APPENDIX III

1 - Before the assembly of the shims spacer :

T-GE

T-JE

The dimension between the flanges of the transmission units (T-GE) or, the hub flanges must be measured (see

figure 1).

2. Compare the 2 measured dimensions to the values given in the drawing shims table.Take the closest value which indicates the number of shims to use.

3. When possible, the shims must be divided on each side of the spacer or transmission unit and located on

spigots.

4. It is impossible to use a number of shims geater than the number given on the general arrangment drawing (in

case of anomaly, refer to JOHN CRANE FRANCE).

5. Carry on the coupling assembly following paragraph 3 of the general instructions procedure related to the

coupling.


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APPENDIX IV

SHIMS AND SHIMS-CARRIER

1. Before the assembly of the shims spacer :

T-GE

T-JE

The dimension between the fLanges of the transmission units (T-GE) or, the hub flanges must be measured (seefigure 1).

2.Compare the 2 measured dimensions to the values given in the drawing. shims table.

Take the closest value which indicates the number of shims to use.

Nota : JOHN CRANE FRANCE advises before disassemble shims carrier to check if the control dimensions can't

be achieved through a modification of the shims outside the spacer - shims carrier component.

(if the latter is already assembled with the number of shims related to the nominal thickness, see the general

arrangement drawing) .


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lst case

The number of shims is less than the number written for the nominal dimension in shims table :

- disassemble the shims carrier

- fit the necessary number of shims

- assemble the shims carrier with its shims provided that the shims are located vis a vis the screws

(one screw can be used as a guide device)

- follow the angular positioning indicated on each component.

2nd case

The number of shims is greater than the number indicated for the nominal dimension written an shims table.

1. put between the spacer and the shims-carrier, the number of shims corresponding to the nominal value or to the

thickness written on the general arrangement drawing.

2. procede to the assembly of the shims carrier as indicated in 1st case.

- If required, fit the remaining shims in the spigots of the transmission unit hubs.

3. It is impossible to use a number of shims greater than the number given on the general arrangment drawing (in

case of anomaly, refer to JOHN CRANE FRANCE).

4. Carry on the coupling assembly following paragraph 3 of the general. instructions procedure related to thecoupling.


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APPENDIX V

(OLD RANGE)

Bolt tightening torque for couplings

T-GS and T-JS

TSGS TLGS TTGS TUGS T-GS T-JS

TSJS TLJS TTJS TUJS lb. f t N.m lb. f t N.m

150 210 18 25 7 10

250 350 18 25 7 10

280 530 18 25 18 25

540 750 1000 59 80 18 25

750 1000 1400 59 80 18 25

1000 1400 1850 59 80 18 25

1300 1850 2400 2900 59 80 18 25

3000 4000 4900 151 205 59 80

4200 5500 6700 151 205 59 80

6000 7800 9009 199 270 96 130

9009 9012 9014 199 270 151 205

9012 9016 9016 199 270 151 205

9015 9020 9024 199 270 151 205

Tightening torque for ½ transmission unit (N.m) / lb.ft

Tightening torque for bolt between hub

and transmission unit


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APPENDIX VI

(OLD RANGE)

X Distance for couplings

T-GS and T-JS

TSGS "X" TLGS "X" TTGS "X" TUGS "X"

TSJS inch mm TLJS inch mm TTJS inch mm TUJS inch mm

0150 0,33 8.5 0210 0,33 8.5

0250 0,35 9.5 0350 0,37 9.5

0380 0,45 11.5 0530 0,45 11.5

0540 0,53 13.5 0750 0,53 13.5 1000 0,55 14

0750 0,55 14 1000 0,55 14 1400 0,59 15

1000 0,61 15.5 1400 0,63 16 1850 0,67 17

1300 0,69 17.5 1850 0,71 18 2400 0,75 19 2900 0,55 14

3000 0,87 22 4000 0,89 22.5 4900 0,91 234200 0,93 23.5 5500 0,96 24.5 6700 0,98 25

6000 1,12 28.5 7800 1,14 29 9009 1,16 29.5

9009 1,30 33 9012 1,34 34 9014 1,36 34.5

9012 1,40 35.5 9016 1,46 37 9016 1,46 37.5

9015 1,54 39 9020 1,59 40.5 9024 1,63 41.5

Coupling John Crane

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