I never heard of a bearing that has ceramic balls in the race . but after i put it in my electric motor, it was as smooth as a turbine! i like its small and yet precision makeup . It seems a little $ for such a small bearing , all in all , it is awesome !
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Hi grade ceramic bearings
July 11, 2011
Fred from Missouri City, TX
Used as the main shaft bearings in a radio-controlled model heliocopter.