Joint bearing is a special structure of the sliding bearing. Its structure is simpler than the rolling bearing, which is composed of an outer ring with an outer sphere and an outer ring with inner sphere. It can bear a large load. According to the different type and structure, it can bear radial load, axial load, radial load and axial load. The joint bearings are generally used for low speed of the swing movement (i.e. angular motion), because the sliding surface is a spherical shape, and can also be used in a certain range of tilt motion (i.e., the movement), the bearing shaft and shaft shell hole is not more than one heart, still can work.
Characteristics of joint bearing:
Joint bearing can bear larger load. According to their different types and structures, it can bear radial load, axial load, radial load and axial load at the same time. Since the outer sphere of the inner ring is inlaid with a composite material, the bearing can be generated from the lubrication of the bearing. Generally used for low speed of the swing movement, and low speed rotation, can also be used in a certain range of tilt motion, when the bearing shaft and shaft shell hole is not large, still can work. Self lubricating joint bearing is applied to water conservancy, professional machinery and other industries.
Application of joint bearing:
Joint bearing is widely used in engineering hydraulic cylinder, forging machine tool industry, mechanical engineering, automation equipment, automobile shock absorber, water conservancy machinery etc.. The introduction and classification of joint bearing is spherical plain bearing, and the basic model is composed of inner and outer ring with spherical sliding surface. Depending on the structure and type, the radial load, axial load, or radial and axial loads are combined. Because of the spherical sliding contact area of the joint bearing, the tilt angle is large, but also because most of the joint bearing to take a special process, such as surface phosphating, zinc, chrome or external sliding surface lining, insert pad, spray, etc.. Therefore, there is a large load capacity and impact resistance, and has the characteristics of corrosion resistance, wear resistance, self - adjustment, good lubrication or self - lubrication lubrication without the characteristics of pollution, even if the installation can work properly. Therefore, the joint bearing is widely used in the low speed of the swinging movement, the tilt movement and the rotation movement.