Bearing failure identification system

Details Bearing failure identification system Bearing failure identification system

2005-09-15

2008-11-11

Lee, Benjamin C (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S647000, C340S652000, C340S682000, C702S034000, C374S142000, C310S06800R

Reexamination Certificate

active

07450022

ABSTRACT:
A bearing failure detection system includes a thermal protector switch circuit having a wear strip located within an interior of a motor stator. In response to bearing failure or wear above a predetermined magnitude, the motor rotor will shift off its axis of rotation and wear away the wear strip or break the electrically conducting material of the wear strip and activate the stator thermal protector switch circuit and shut down the electric motor. The wear strips assist the thermal protector switch circuit in the identification of a bearing failure and the light rubbing that results therefrom prior to the generation of an electrical burning smell that may otherwise occur after a prolonged period of rubbing.

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