Bearing failures Electrical Motors

[sjako]

Hi All,

I´m looking for the typical bearing failures in Electrical Motors, when they´re being tested without load.
I´ve read they always shout be tested with a minimum load, if they´re being tested without the minimum load, what bearing failures will occur?
And is there a normalised acceptance test in the field available?

Thanks!!

 

[aamoroso]

All bearing manufacturers will provide you with bearing life data. Most supply with limit ranges for RPM, Load, and much, much more. Most Bearing companies are willing to send a rep out to your place and spend some time if it looks like a potential business op for them.