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Work characteristics plain bearings：

Bearing smooth, reliable, no noise. Slewing bearing lubrication conditions in a liquid, the sliding surfaces are separated and not in direct contact with the lubricating oil, but also can greatly reduce the friction loss and wear surfaces, the film also has a certain vibration absorption capability. But starting friction is large. Bearing portion of the shaft is called the journal, and the journal bearing mating parts called. In order to improve the friction properties of the surface of the pad on the inner surface of the casting of the antifriction material layer is referred to the bearing bush. Pad and the bearing liner material collectively referred to as the sliding bearing material. Bearing applications generally at low speed heavy duty working conditions, or maintenance and operation difficulty filling oil site.
Rolling generally consists of an outer ring, inner ring, rolling elements and a cage. Wherein the effect of the inner ring is fitted with the shaft and rotates with the shaft, the outer ring and the bearing function is fitted, play a supportive role, is by means of a rolling body cage a uniform distribution of the rolling elements between the inner and outer rings its shape and size and the number of direct impact on the performance and life of rolling bearings, rolling element cage to make uniform, to prevent rolling off the body to guide the rotation of rolling lubricant.