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The material of ceramic bearings is usually silicon nitride, alumina oxide, zirconia oxide or silicon carbide. Ceramic bearing is featured by high load, high speed and high temperature resistance. Ceramic bearing performances makes it the ideal bearing for extreme conditions and application. TBB ceramic bearing including XY hybrid ceramic deep groove ball bearing, sealed hybrid ceramic deep groove ball bearing and other types. A variety of sizes and styles are available. You can also choose customization.