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Reply to "Skidding bearing"

quote:
vertical motor that is eating upper bearings

You probably have a bearing with virtually no load on it. Most bearings need a certain amount of load in order to spin. Typically the lower bearing is carrying the endthrust so upper bearing just stabilizing the rotor.

So when you took out the last bearing what did it look like? You need to inspect carefully to find the failure mode.

Does a new bearing start with abnormally low vibration - indicating no rolling contact?
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