Bearing classification, bearing structures and bearing materials
Sliding bearing (sliding bearing), bearing in sliding friction work. Bearing smooth, reliable, no noise. In the liquid lubrication conditions, the sliding surfaces are separated and not in direct contact with the lubricating oil, but also can greatly reduce the friction loss and surface wear, the film also has a certain vibration absorption capacity. But the starting frictional resistance 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 its inner surface layer of the cast friction material called bushing. Bearings and bearing liner materials collectively known as the bearing material. Common sliding bearing material bearing alloy (also known babbitt or white metal), cast iron, copper and aluminum alloys, powder metallurgy materials, plastics, rubber, hardwood and carbon - graphite, polytetrafluoroethylene (PTFE ), modified POM (POM), and the like.
Bearing applications generally carried out at low speed heavy working conditions or difficult maintenance and filling oil operating area.
