Thrust Bearings in Grand Player Piano Motors
By Gordon Stelter
[ Don Teach wrote in 211221 MMDigest:
> The shaft will be pulled up when the motor is energized and drops
> when the power is turned off. This means the shaft [rotor] is acting
> like a small hammer each time it comes down.
There's a Facebook group for folks who rebuild antique electric motors
just for the fun of it: https://www.facebook.com/groups/553099208373671/
Maybe someone there has the perfect answer for Don Teach?
Gordon Stelter
Athens, Georgia
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(Message sent Thu 30 Dec 2021, 04:22:49 GMT, from time zone GMT-0500.) |
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