9.2.1 Assembling the rolling-contact bearings
● Extreme caution and attention to cleanliness are vital to installation. Observe the correct
assembly sequence of the components.
●
Attach all components with the specified tightening torques.
Note
For further
information about mounting the roller bearing, please refer to the catalog or the
information provided by the roller bearing manufacturer.
Procedure
1. Remove the required components and replace damaged components.
2.
Remove any dirt from the components. Remove any grease and the remains of sealant or
liquid threadlocker.
3. Prepare the bearing journals:
– Lightly oil the inner ring seat.
– Grease the outer ring seat with solid lubricant such as the anti-fretting paste Altemp Q
NP 50.
4. Warm up the roller bearing.
5. Push the inner ring of the warmed up roller bearing onto the shaft. Avoid any blows that
might damage the bearing.
6. Make sure that the roller bearing is resting against the shaft shoulder or the second bearing.
Otherwise, axial vibrations may occur.
7. Fill the bearing to the top with the specified lubricating grease.
8. Warm up the grease slinger and push it onto the shaft.
9. Locate the locking ring in the shaft groove or attach the bearing using the shaft nut or a set
screw, depending on the particular version.
10.Support the rotor for the installation of bearing housing or end shield.
11.Grease the bearing locations (bearing shield/bearing cartridge) with solid lubricant such as
the anti-fretting paste Altemp Q NP 50.
12.Use a suitable sealant when assembling.
13.Install the bearing shield or bearing housing together with the bearing shield.
14.Install the outer bearing cover if one is being used.
15.Install the sealing elements:
If present: V ring
Labyrinth sealing ring (special design)
Maintenance
9.2 Corrective Maintenance
LOHER CHEMSTAR 1PS2
98 Operating Instructions 08/2016
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