Maintenance
9.3 Corrective Maintenance
1MB..5/6 shaft height 71 ... 355
118 Operating Instructions, 07/2020, A5E41926185A
9.3.3.1 Installing rolling bearings
• Extreme caution and attention to cleanliness are vital when installing rolling bearings.
Observe the correct assembly sequence of the components.
• Attach all components with the specified tightening torques (Page 143).
• For individually mounted angular contact ball bearings, carefully comply with the
installation position corresponding to the permissible direction of force.
• Angular contact ball bearings arranged in pairs must always be installed in strict
compliance with the manufacturer's specifications.
• Always use angular contact ball bearings of the same type.
Note
For further information about mounting the rolling bearing, please refer to the catalog or the
information provided by the rolling bearing manufacturer.
Procedure
1. Replace the damaged components.
2. Remove any dirt from the components. Remove any grease and the remains of sealant or
liquid threadlocker.
3. Prepare the bearing seats:
– Lightly oil the inner ring seat.
– Grease the outer ring seat with a solid lubricant such as Altemp Q NB 50.
– Press the inner bearing cover onto the shaft.
4. Warm up the rolling bearing.
5. Push the inner ring of the warmed up rolling bearing onto the shaft. Avoid any blows that
might damage the bearing.
6. Ensure that the rolling bearing is resting against the shaft shoulder or the 2nd bearing.
7. Fill the bearing to the top with the specified lubricating grease as stamped on the lubricant
plate.
8. Warm up the grease slinger (if one is available), and push it onto the shaft.
9. Depending on the particular version, fix the bearing with a locking ring or shaft nut.
10. Support the rotor when installing the bearing housing or bearing end shield.
11. Use a suitable sealant when assembling.
12. Assemble the bearing shield or bearing housing together with the bearing shield.
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