4 Repair
4.5.3. Replacement of spherical roller bearing, balancing device
3HAC026876-001 Revision: F292
© Copyright 2007-2010 ABB. All rights reserved.
4.5.3. Replacement of spherical roller bearing, balancing device
Overview
There are some differences in the two designs of the robot IRB 6640, design 1 has:
• one ear on the lower arm as shown in the figure for design 1.
Design 2 has:
• two ears on the lower arm as shown in the figure for design 2
The difference is described in section Design 1 and Design 2 of IRB 6640 on page 48.
Location of bearing, Design 1
The bearings are located in the balancing device, as shown in the figure below.
xx0900000072
A Washer
B Sealing ring, radial (2 psc)
C Spherical roller bearing
D O-ring
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