Mounting the coupling
44
Torques for the bolted flange connection
The following torques are applicable for bolting the coupling flange to the engine
flywheel.
They are only applicable for the following conditions:
Total friction factor μ= 0.14
Bolt strength grade 8.8
Aluminium flanges must be mounted only with plain washers. We recommend using
washers of the largest possible size, but in any case of at least the dimensions
defined in DIN 433. Strength grade 10.9 bolts with appropriate washers and correct
torques may be used under circumstances after consultation with REICH-
KUPPLUNGEN.
Contact REICH-KUPPLUNGEN before using bolts of a different strength grade.
Before tightening the bolts make sure that the washers have full-surface contact on
the flange.
SAE flywheel
6
1
/
2
, 7
1
/
2
8, 10, 11
1
/
2
14, 16
18, 21
24
Metric bolts
M8
M10
M12
M16
M20
Torque M
A2
[Nm]
25
50
85
210
420
Imperial bolts
5
/
16
-28
3
/
8
-16
½-13
5
/
8
-11
¾-10
Torque M
A2
[Nm]
24
42
102
203
340
