Rolling bearings refer to bearings in which the friction between the shaft and the shaft seat in mechanical operation is rolling friction, but the plain bearings still work under sliding friction. The structure of the rolling bearing is clear, and the uniform distribution of the rolling element can effectively reduce friction, so the mechanical starting is very fast and good, and it is simple and convenient in maintenance. In addition, it is more suitable for working at medium speed, high-speed work noise is relatively large, and will reduce its service life. In addition, the rolling bearing vibration is large when working. In comparison, the sliding bearing runs smoothly and without noise, but the resistance is relatively large when starting.
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