The spherical plain bearing is a spherical sliding bearing, and the basic type is composed of inner and outer rings with spherical sliding spherical contact surfaces. The spherical plain bearing is mainly composed of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface, which can bear a large load. According to its different types and structures, it can bear radial load, axial load or combined radial and axial load at the same time.
Since the outer spherical surface of the inner ring is inlaid with composite materials, the bearing can produce self-lubrication during operation. Joint bearings are generally used for low-speed swing motion, and can also be used for tilting motion within a certain Dongsheng Bearing angle range. When the misalignment between the support shaft and the shaft shell hole is large, it can still work normally. Self-lubricating spherical plain bearings are used in water conservancy, professional machinery and other industries.
Because the spherical sliding contact area of the spherical plain bearing is large, the inclination angle is large, and because most of the spherical plain bearings adopt special processing methods, such as surface phosphating, galvanizing, chrome plating or outer sliding surface lining, padding, spraying, etc. Therefore, it has a large load capacity and impact resistance, and has the characteristics of corrosion resistance, wear resistance, self-alignment, good lubrication or self-lubricating without lubrication and dirt pollution, and can work normally even if the installation is misplaced. Therefore, spherical plain bearings are widely used for low-speed oscillating motion, tilting motion and rotational motion.
