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we have two types of ceramic bearing, hybrid ceramic bearing and full 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 kinds of ceramic materials, the most common ceramic materials are Si3N4 that stands for the silicon nitride ceramic material and is black colored, SiC stands for the silicon carbide material and also is black colored. and the ZrO2 that stands for the zirconium dioxide, also known as zirconia or zirconium oxide, they are white colored, a ZrO2 ball looks exactly like a pearl. the ceramic material is not stronger than steel, but ceramic bearing are lighter and have lower friction than steel, that makes ceramic bearing go faster with lower heat generated.
ZrO2 Zirconia Bearings have the strongest toughness and strength which is nontoxic. Low cost as well. ZrO2 main application is in medicine mold, also apply for petroleum valve ball. ZrO2 is the best material for structural components which is easy to machining and is the most precision.
1) Chemical resistant. Can work in various chemicals.
2) No need lubrication, clean, and can wash in the water.
3) Non-magnetic and insulation. Reliable working.
4) Constant working in high temperature till 500 Centigrade .
Zirconia Bearing Application :
Electro plating, electro polishing ,Food processing, vacuum applications.Fiber processing, conveyor processing. Medical radiation, photo processing,Computer assembly, electronics applications, Medicine equipment, wet application