What are the advantages of ceramic bearings and all-steel bearings?

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What are the advantages of ceramic bearings and all-steel bearings?

Source: China Bearing Network Time: 2017-11-10

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1, the speed and speed can be high - can work under the condition that the dn value exceeds 3 million; and the slip, wear and heat can be reduced,
2, long life, wear resistance - the fatigue life of all ceramic bearings is expected to be 10-50 times longer than all steel bearings; hybrid ceramic bearings; lifespan is also 3-5 times higher than the life of all steel bearings ,
3, the required smoothness is small - the ceramic material has a low friction coefficient; the oil is smooth ceramic bearing; in the case of smooth oil thinning or lean oil; its smoothness is still not lower than the traditional smoothing agent commonly used in steel bearings.

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