A full ceramic bearing is a bearing where the inner ring, outer ring and ball are comprised of ceramic materials; including zirconia and silicon nitride.Cages can be made by Ceramic or PTFE, GFRPA66-25,PEEK,PI, Phonemic Textiles Tube ,etc.

Hybrid bearings, are comprised of both ceramic and metal; the ball is ceramic(ZrO2, Si3N4 or Sic), while the out ring and inner ring are made of steel(Normally, GCr15 or AISI440C,316 304)