Lubrication System And Bearings; Lubrication System And Rolling Bearings - ABB AMA Series Manual

Manual for Induction Motors and Generators

8.1.2 Lubrication system and bearings

***Following chapter for bearing type: Rolling bearing

8.1.2.1 Lubrication system and rolling bearings

Experienced
malfunction
92 - Trouble Shooting
Trouble shooting
Lubrication system and antifriction bearings
oil supply and self lubrication
Possible cause
Insufficient amount of grease
Insufficient lubrication
Unsuitable grease quality or viscosity
Faulty coupling or mounting
Excessive axial forces
Incorrect regreasing period
Reduced grease quality
Faulty operating conditions
Excessive lubrication
Impurities in grease
Bearing currents
Damaged bearing parts
Complete bearing failure
Normal wearing
Faulty temperature detector
Faulty instrumentation
Faulty bearing seals
Incorrectly assembled bearing
Outer ring is rotating due to unbalanced load
Bearing noise due to deformed roller element
Foreign matter inside the bearing
Corrective action
Check bearing condition, add grease
Check ABB grease recommendations, change grease
Check coupling, mounting and alignment
Check ABB recommendations, regrease
Check ABB operating and grease recommendations
Clean bearing and add correct amount of lubricant
Change grease, check bearing condition
Check bearing and insulation condition
Replace bearing
Replace worn bearing parts
Check bearing temperature measurement system
Check bearing seals and lubricant quality
Replace bearing, ensure correct assembly
Rebalance machine, repair bearing bore and replace bearing
Replace bearing
Clean bearing assembly, check seal conditions and replace bearing
3BFP 000 050 R0101 REV E