Gear units – Manual with installation instructions
22 B 1000 en-3921
3.5 Installation of a hub on solid shaft (option: V, L)
The gear unit may be damaged by axial forces.
Bearings, gearwheels, shafts and housings may be damaged by incorrect fitting.
• Use a suitable pulling device.
• Do not hit the hub with a hammer.
Figure 2: Example of a simple pulling device
During fitting, ensure that the shaft axes are precisely aligned with each other. Comply with the
permissible tolerance details provided by the manufacturer.
Use the end thread of the shafts for pulling. Fitting can be facilitated by coating the hub with lubricant
or heating it up to approx. 100 °C beforehand.
The maximum radial forces FR1 and FR2 and axial forces FA2 which are imposed on the
driving and driven elements of the gear unit must not be exceeded (refer to the name plate). Pay
particular attention to the correct tension of belts and chains.
Additional loads due to unbalanced hubs are not permitted.
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