4 Repair
4.2.2. Mounting instructions for bearings
2473HAC022033-001 Revision: K
© Copyright 2004-2011 ABB. All rights reserved.
4.2.2. Mounting instructions for bearings
General
This section describes how to mount and grease different types of bearings on the robot.
Equipment
Assembly of all bearings
Follow the following instructions while mounting a bearing on the robot.
Assembly of tapered bearings
Follow the preceding instructions for the assembly of the bearings when mounting a tapered
bearing on the robot.
In addition to those instructions, the following procedure must be carried out to enable the
roller elements to adjust to the correct position against the race flange.
Equipment, etc. Art. no. Note
Grease 3HAB3537-1 Used to grease the bearings, if not
specified otherwise.
Action Note
1. To avoid contamination, let a new bearing remain in its wrapping
until it is time for fitting.
2. Ensure that the parts included in the bearing fitting are free from
burrs, grinding waste, and other contamination. Cast components
must be free of foundry sand.
3. Bearing rings, inner rings, and roller elements must not be
subjected to direct impact. The roller elements must not be
exposed to any stresses during the assembly work.
Action Note
1. Tension the bearing gradually until the recommended pre-tension is achieved.
NOTE!
The roller elements must be rotated a specified number of turns before pre-
tensioning is carried out and also rotated during the pre-tensioning sequence.
2. Make sure the bearing is properly aligned as this will directly affect the durability
of the bearing.
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