How to Check an Electric Motor: 12 Steps (with
· Many electric motor failures are caused by bearing failures. The bearings allow the shaft or rotor assembly to turn freely and smoothly in the frame. Bearings are located at both ends of the motor which are sometimes called "bell housings" or "end bells". There are several types of bearings used. Two popular types are brass sleeve bearings and steel ball bearings. Many have fittings for
4