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Composition of ceramic ball bearings
Because the ceramic ball itself has self-lubricating performance, it can be lubricated with grease or without grease according to the requirements of use. The seal can also be determined according to the use requirements, whether the ceramic ball bearing is sealed or not. The retainer can also be used according to the use requirements. Then the ring and the roller are two indispensable elements of the bearing. When these two elements are not the same material, there is a saying that bearings are mixed. When rolling elements are made of ceramic materials, they are defined as hybrid structure ceramic ball bearings. Commonly used ceramic ball materials are zirconia (ZRO2) and silicon nitride (Si3N4); Commonly used ferrule materials are bearing steel (GCR 15), stainless steel iron (440, 440C) and stainless steel (304, 3 16, 3 16L).

According to the use environment, speed, load, temperature and use requirements, the ferrule and rolling body of ceramic ball bearing can be combined with each other through the above materials, with different use effects.

Ceramic ball bearing code:

HY+ ring material+bearing type+sealing type-ball material-retainer material-grease

Ring material: S stands for stainless steel iron, ss stands for stainless steel, and the specific material can be registered and marked.