BEARING IMPLEMENTATION FOR A ROTATING ELECTRICAL DEVICE

摘要

In one embodiment, an electric motor includes at least three bearings. The ball bearing utilized in the three bearings may be sized based on benchmark surface areas associated with the ball bearing utilized in a conventional electric motor having two bearings. Moreover, a technique may be implemented to reduce the diameter at a point on the shaft where a backup or second bearing makes contact with the shaft. When the motor begins to operate, for example, at a first time, the at least three bearings together handle a the load coming through the motor. When the front-most bearing degrades to a predetermined point or fails, for example, at a second time, the load transitions from the front most bearing to the second or backup bearing in the front plate.

主权项

1. An electric motor, comprising:
a rotor; a front plate configured to house at least a first front bearing and a second front bearing; a rear plate configured to house at least one rear bearing; and a shaft having: a first diameter associated with a first location where the first front bearing makes contact with shaft, a second diameter associated with a second location where the second from bearing makes contact with the shaft, and a third diameter associated with a third location where the rear bearing make contact with the shaft,
wherein the shaft at the second location is reduced utilizing a polishing technique.