Industrial gear units – Operating and Assembly Instructions
34 B 1050 en-1819
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3.10 Gear unit with hollow shaft (Option: A, EA)
NOTICE
Gear unit damage
The bearings, gear wheels, shafts and housing may be damaged by incorrect assembly.
• The gear unit must be fitted onto the hollow shaft of the machine using a suitable puller which will not exert
damaging axial forces on the gear unit. In particular, do not hit the gear unit with a hammer.
Assembly and subsequent dismantling is facilitated by applying an anti-corrosive lubricant to the
points described before fitting (e.g. Nord Anti-Corrosion Part No. 089 00099). Excess grease or anti-
corrosion agent may escape after assembly and may drip off. Clean these points on the driven shaft
after a running-in time of approx. 24 hours. This escape of grease is not due to a leak in the gear unit.
Notice:
Not for gear units with shrink discs
(3.10.2)!
Figure 10: Applying lubricant to the shaft and the hub
The required length of the parallel key of the solid shaft of the machine must be appropriately
designed by the customer in order to ensure the safe transmission of forces.
If splines are used (Option: EA) to transmit the forces, it must be ensured that the splines on the solid
shaft of the machine are of the correct size and tolerances.
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