Advantages: stable rotation, corrosion resistance, no rust, no oil self-lubricating, no magnetic, insulation, high temperature resistance Disadvantages: poor load capacity, fragile installation and use, due to high precision, high environmental requirements, the inside of the bearing can not enter dust and impurities. Use classification: (1) It has the advantages of cold resistance, small elasticity, high pressure resistance, poor thermal conductivity, light weight and small friction coefficient. (2) High temperature resistant bearing: The material itself has a high temperature resistance of 200 ° C, and is self-lubricating. The use temperature does not cause expansion due to temperature difference . (3) Corrosion-resistant bearings: The materials themselves have corrosion-resistant properties and can be applied in fields such as strong acids, alkalis, inorganics, organic salts and seawater. (4) Anti-magnetic bearing: Because it is non-magnetic, it does not absorb dust, which can reduce the surface of the bearing to peel off, thus reducing the running noise. (5) Electrically insulated bearings: Due to the high electrical resistivity, the bearings can be protected from arcing. (6) Vacuum bearing: Due to the unique oil-free self-lubricating properties of ceramic materials, it can also be used in ultra-high vacuum environments.

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