Quote:
Originally Posted by Cartwheels
in and out or side to side?
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That would be side to side, any movement in this direction could mean the actual balls or races are wearing out. Normally what happens is the bearing gets dry (no oil/grease) or dirty. Then the friction and heat cause the cages (these hold the balls in the proper position) to fail, which leads to major bearing failure. With In and out movement there is a little more play, even if there is movement in this direction when the motor energizes it will self align (center the rotor betwween the coils). Of course you don't want excessive movement here either, but a little is ok.
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