brittle ceramic balls
brittle ceramic balls
(OP)
Hybrid ceramic ball bearings use silicon nitride balls.
I whacked one (used, been in my desk drawer for 6 to 10 years, 0.375 inch diameter, from a precision spindle bearing) with a 16 ounce ball-pien hammer yesterday.
The ball is visually fine. It might be 0.0001 inch out of round now, It was probably much rounder when new, but I did not measure it before.
I whacked one (used, been in my desk drawer for 6 to 10 years, 0.375 inch diameter, from a precision spindle bearing) with a 16 ounce ball-pien hammer yesterday.
The ball is visually fine. It might be 0.0001 inch out of round now, It was probably much rounder when new, but I did not measure it before.





RE: brittle ceramic balls
No plastic deformation.
Mike Halloran
Pembroke Pines, FL, USA
RE: brittle ceramic balls
No doubt you hit it vigorously - the dent in the steel part is quite deep. But, as Mike says, the ball itself probably didn't change.
0.0001" out of round is a lot for a 0.375" ball. Is it really that bad? Is that why the bearing was removed from the spindle?
Gunnar Englund
www.gke.org
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