Danger as a result of rotor falling out
If the motor is in a vertical position, the rotor can fall out while work is being performed on the
locating bearing. This can result in death, serious injury or damage.
• Support or unload the rotor when carrying out work with the machine in a vertical position.
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 specied tightening torques (Page133).
• 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 specications.
• 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 AltempQ NB50.
– 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 specied lubricating grease as stamped on the lubricant
plate.
Maintenance
9.4Corrective maintenance
1LE1, 1FP1/3, 1PC1/3 shaft height 63 ... 315
Operating Instructions, 11/2023, A5E38483075A 107
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