Hollow Shaft And Key Link - Siemens 1FK7 Series Instructions Manual

2.1.5

Hollow shaft and key link

The hollow gear shaft has a spiral groove which acts as a grease reservoir and prevents
fretting corrosion.
Fig. 7 Hollow shaft and key link
The machine shaft can be dismounted with the aid of a forcing off disk (see also Chapter
4.2.2.1 "Geared motor with hollow shaft and key link").
Fig. 8 Dismounting the machine shaft
1 Force off
2 Shrink on
2.1.6 Torque bracket
A torque bracket can be mounted on three sides (GS1; GS2; GS5) of bevel gears (coni-
cal/worm gears) by screwing on a drive plate. The corresponding torque bracket can also
be mounted in two positions of rotation.
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