Siemens 1FK7 Series Instructions Manual page 16

Fig. 6 Hollow shaft (example)
Shrink disc connection:
The hollow shaft is connected to the smooth machine drive shaft by frictional engage-
ment produced by elastically constricting the hollow shaft with a shrink disk. This shaft-
hub link has absolute zero-backlash, and is therefore also non-wearing.
It can transmit high torques and axial forces with a high degree of true-running accuracy
(as a result of its self-centering characteristic).
The hollow shaft is made of high-tensile tempering steel.
Hollow shaft models (dependent upon size of gearbox):
- Hollow shafts with slots in the shrink seating area:
Machine shaft with tolerance complying with ISO h9.
- Hollow shafts without slots in the shrink seating area:
Machine shaft with tolerance complying with ISO h6.
The end of the hollow shaft with the shrink disk seating must not be loaded with
a radial operational force.
16
ENGLISH
CAUTION
610.40 064.01 Siemens AG