2018-09-262018-09-262018http://hdl.handle.net/20.500.12091/334A bearing is a device to allow constrained relative motion between two or more parts. A bearing typically allows rotation or linear movement. Improper care of bearings leads to friction in the motor. Friction in the motor can cause damage to the motor. Lack of lubrication is the primary cause of bearing failure. Bearing failure is one of the major causes of breakdowns in rotating machinery. Bearing failure can be catastrophic, resulting in costly downtime. Bearings should be periodically repacked (after lubrication) to prevent major damages. Some bearings are sealed. If sealed bearings are damaged, they cannot be repaired.en-USMotorsBTA SkillsArticle