Manual for Induction Motors and Generators
50 -
Commissioning and Start-up
3BFP 000 050 R0101 REV E
***Following chapter for bearing type: Rolling bearing
5.7.3.1 Machines with rolling bearings
In case of a newly installed machine or a machine, which has been out of service for more than
2 months, inject new grease into the bearings immediately after start-up. New grease must be
injected when the machine is running, and is injected until old grease or excess new grease is
discharged through the lubrication channel in the bottom of the bearing housing, see
Example of lubrication channel through bearing arrangement of horizontal machine
Figure 5-1 Example of lubrication channel through bearing arrangement of horizontal
machine
NOTE: The re-lubrication interval will never be longer than 12 months.
The type of original grease used is found on the bearing plate on the machine. Acceptable types
of grease can be found in
Chapter 7.5.3 Rolling bearings
The temperature of the bearings will initially increase because of the excess grease. After few
hours, the excess grease will be discharged through the lubrication valve and the temperature of
the bearing will return to normal running temperature.
If available, and after the machine has been running for several hours, measure the vibrations or
SPM-values from the SPM-nipples, and record the values for future reference use.
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