The impact on metal foreign bodies is small, and it is not easy to cause early damage. Commonly used sliding bearing materials include bearing alloys (also called Babbitt alloys or white clutch bearings factory alloys), wear-resistant cast iron, copper-based and aluminum-based alloys, powder metallurgy materials, plastics, rubber, hardwood and carbon-graphite, polytetrafluoroethylene (PTFE) ), modified polyoxymethylene (POM), etc. Sliding bearing compared with rolling bearing
Advantages of sliding bearings: Advantages of sliding bearings: Not suitable for mass production, poor interchangeability, and inconvenient installation, disassembly and maintenance.. The internal clearance is large and the machining accuracy is not high. Its shape, size and quantity directly affect the performance and life of the rolling bearing. The oil film also has a certain vibration absorption capacity.
Under liquid lubrication conditions, sliding surfaces are separated by lubricating oil without direct contact, and friction loss and surface wear can be greatly reduced. The tight ring and the shaft sleeve are tight, and the live ring is supported on the bearing seat. It cannot bear radial and axial loads at the same time. The rolling elements are evenly distributed between the inner ring and the outer ring by means of a cage.
Thrust bearing is divided into two parts: tight ring and live ring.Sliding bearing Sliding bearing (slidingbearing), a bearing that works under sliding friction. A precision mechanical component that changes the sliding friction between the rotating shaft and the shaft seat into rolling friction, thereby reducing friction loss, is called rolling bearing (rollingbearing). Sliding bearings work smoothly, reliably and noiselessly.
The inner ring is tightly sleeved on the journal and rotates with the shaft, and the outer ring is installed in the bearing seat hole. The radial bearing in the rolling bearing (mainly bearing radial force) is usually composed of 4 parts: inner ring, outer ring, rolling element and rolling element cage.
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