... ceramic bearings 4.8 mm x 9.5 mm x3 2mm 1,ABEC7 2,High speed 3,End cover:ZZ,RS ... ceramic bearings 4.8 mm x 9.5 mm x3 2mm. We have 2 types of ceramic bearing, hybrid ceramic ... bearing, the hybrid ceramic bearing has steel inner and outer rings with ceramic balls, as for the full ceramic bearing; ... the inner, outer rings and the balls are made of ceramic. There are many ...