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S6904-2RS bearing is made from stainless steel with silicon nitride Ceramic Balls (Si3N4) and Nylon cage
Limiting Speed: Grease Lubrication: 2200 RPM
7311BM Ball Bearing
quality is G25
or electronics
Wholesale 639-2RS Full Ceramic Si3N4 Bearings 9x30x10 Miniature-Pack of 20 Ball Diameter - 21mm S6904-2RS bearing is made from639 2RS Full Ceramic Ball Bearing Silicon Nitride 9x30x10 Pack of 20 Bearings 639 2RS Full Ceramic Ball Bearing, measures an inner diameter of 9mm, outer diameter is 30mm and the width is 10mm, a standard bearing size commonly used in a variety of industrial and commercial applications, Bearing is made from Ceramic. 639 2RS Ball Bearing Full Ceramic Ball Bearing Cage Material: PTFE (Polytetrafluoroethylene) Balls: Si3N4 Ceramic (Silicon Nitride) Inner
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