Sliding bearing, is a bearing that works under sliding friction. Sliding bearings work smoothly, reliably and without noise. Under liquid lubrication conditions, the sliding surface is separated by the lubricating oil without direct contact, and the friction loss and surface wear can be greatly reduced, and the oil film also has a certain vibration absorbing capability. However, the starting friction resistance is large. The part of the shaft that is supported by the bearing is called the journal, and the part that matches the journal is called the bearing.
The layer of friction reducing material cast on its inner surface in order to improve the frictional properties of the surface of the bearing pad is referred to as a bearing lining.
The materials of the bearing bush and bearing bushing are collectively referred to as plain bearing materials. Commonly used sliding bearing materials are bearing alloys (also known as babbitt or white alloy), wear-resistant cast iron, copper-based and aluminum-based alloys, powder metallurgy materials, plastics, rubber, hardwood and carbon-graphite, and polytetrafluoroethylene (PTFE). ), modified polyoxymethylene (POM), and the like.
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