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•
Place the shrink disk on the hollow shaft and fasten, if required. For the exact installation height (W) of
the shrink disk, refer to the dimensioned drawing.
For transporting and lifting the shrink disk it may be required to use a suitable lifting
device.
Make sure that the shrink disk cannot slip off the hollow shaft.
Do not tighten the tensioning bolts (5) until the stub shaft has been installed too.
•
Tighten the tensioning bolts (5) gradually one after the other, working round several times by quarter
turns.
•
Tighten all tensioning bolts (5) until the end faces of the inner ring (3) and 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 maximum 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 5)
must not be exceeded. If, when tightening the clamping bolts at maximum tightening
torque, the inner and outer ring are not aligned, Siemens must be consulted.
Table 5:
Maximum tightening torques for tensioning bolts
Tensioning-bolt
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 fitted 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. Combining
components from different shrink disks is not permitted.
Tightening the tensioning bolts using an impact screwdriver is not permitted!
Maximum tightening
torque per bolt
Strength class 12.9
Nm
35
70
120
193
295
BA 5814 en 09/2014
32 / 61
Tensioning-bolt
thread
M 20
M 24
M 27
M 30
M 33
Maximum tightening
torque per bolt
Strength class 12.9
Nm
570
980
1450
1970
2650
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