The structure of the plain bearing is simpler than that of the rolling bearing. It mainly consists of an inner ring with an outer sphere and an outer ring with an inner sphere. The plain bearing is generally used for swing motion with low speed (i.e. angular motion). Since the sliding surface is spherical, it can also be tilted (i.e. self-aligning motion) within a certain angle range. It can still work normally when the supporting shaft and the shaft shell hole are not concentric.
Features:
Joint bearing can bear large load. Depending on the type and structure, it can withstand radial loads, axial loads or combined radial and axial loads. Because of the composite material inlaid on the outer surface of the inner ring, the bearing can produce self-lubrication during operation. Generally, it is used for swing motion with low speed and rotation at low speed. It can also be tilted within a certain angle range. When the supporting shaft is not concentric with the shaft shell hole, it can still work normally. Self-lubricating joint bearings are used in water conservancy, professional machinery and other industries.
Application:
Joint bearing is widely used in engineering hydraulic oil cylinder, forging machine tool, engineering machinery, automation equipment, automotive shock absorber, water conservancy machinery and other industries. The plain bearing is a spherical sliding bearing, which is composed of inner and outer rings with spherical sliding spherical contact surface. Depending on the structure and type, it can bear radial load, axial load or combined load of radial and axial action.
Due to large spherical sliding contact area and large inclination angle of the joint bearing, and because most joint bearings adopt special process treatment methods, such as surface phosphating, galvanization, chromium plating or outer sliding surface lining, padding, spraying, etc., it has a large load capacity and impact resistance, and has the characteristics of corrosion resistance, wear resistance, self-aligning, good lubrication or self-lubrication without pollution of lubricating dirt, so it can work normally even if the installation is misplaced. Therefore, plain bearings are widely used for low speed swinging, tilting and rotating movements.
Composition:
The plain bearing mainly consists of an outer ring and an inner ring. The inner surface of the outer ring and the outer surface of the inner ring form a rolling friction pair.
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