Siemens FLENDER PLANUREX 2 PBUC Series Assembly And Operating Instructions Manual page 27

• Tighten all tensioning bolts (5) until the end faces of the inner ring (3) and the outer ring (4) are flush and
the maximum tightening torque of the tensioning bolts has been achieved. The correct alignment is to
be checked using a ruler. The max. tolerance is ± 0.2 mm.
The correct clamping condition can thus be checked visually.
To avoid overloading the individual bolts, the maximum tightening torque
(see table 6) must not be exceeded. If, when tightening the clamping bolts at max.
tightening torque, the inner and outer ring are not aligned, Siemens must be
consulted.
Table 6: Maximum torques for tensioning bolts
Tensioning­bolt
thread
M 8
M 10
M 12
M 14
M 16
The shrink disk has been identity­marked on the outer ring (4). In case of contacting Siemens
this identification must be referred to.
For safety reasons, a protective cover should be mounted to prevent contact!
This cover must be applied after completion of all works on the shrink disk.
Only the complete shrink disks supplied by the manufacturer may be used.
A combination of components from different shrink disks is not permitted.
Tightening the fastening bolts using an impact screwdriver is not permitted!
max.
tightening torque
per bolt
Strength class 12.9
Nm
35
70
120
193
295
BA 9213 en 03/2012
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Tensioning­bolt
thread
M 20
M 24
M 27
M 30
M 33
max.
tightening torque
per bolt
Strength class 12.9
Nm
570
980
1450
1970
2650