We --SOCARE-- could supply you the high quality ceramic bearings with in bulk.
Ceramic bearing also named hybrid bearing, means the ball is ceramic, while the out ring and inner ring are steel. Ceramic ball bearing could have identical structure with steel bearing.

As we all know, the ceramic bearing have many advantages compared with metal bearings:
---High limited speed
---High precision usage
---Longer life
---High temperature usage
---Temperature-variation usage
---Better seizure resistance
---Could run without oil or grease
---Resistant to acid, alkai & salt
---More suitable for magnetic application
And the main series as follows:
---Full ceramic bearing of ZrO2 materia
---Full ceramic bearing of Si3N4
---Full ceramic bearing of ceramic complement balls
---Full ceramic bearing of ceramic cage
---Hybrid cinstruction ceramic ball bearing

Looking forward to your early enquiry and if you do not need ceramic bearing now, it is my pleasure if the material is good for you.