Telamon wrote:


You post about the strangest stuff. I have never heard of this kind of
problem. One or more of the rotor windings must be some how shorted to
the shaft.

Ceramic bearings are not the solution as the current can go through
whatever gear train and mechanical load to which it is connected. The
motor shaft should not be electrically hot. That would be a shock
hazard. That motor is either built wrong or designed wrong.


It's a conductor in a changing magnetic field. A difference of
potential is created.