ABB IRB 4400 - L10, Product Manual

Page: 136 / 304

4.2 General procedures
4.2.1 Mounting instructions for bearings
General
This section describes how to mount and grease different types of bearings on the
robot.
Equipment
Note Article number Equipment, etc.
Used to grease the bearings, if not
specified otherwise. 3HAB3537-1 Grease
Assembly of all bearings
Attend to the following instructions while mounting a bearing on the robot.
Note Action
To avoid contamination, let a new bearing remain in its wrapping
until it is time for fitting. 1
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. 2
Bearing rings, inner rings, and roller elements must not be subjec-
ted to direct impact. The roller elements must not be exposed to
any stresses during the assembly work. 3
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.
Note Action
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.
1
Make sure the bearing is properly aligned as this will directly affect the durab-
ility of the bearing. 2
Greasing of bearings
Note
This instruction is not valid for solid oil bearings.
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136 Product manual - IRB 4400
3HAC022032-001 Revision: Q
© Copyright 2004-2018 ABB. All rights reserved.
4 Repair
4.2.1 Mounting instructions for bearings