Characteristics and Applications of Joint Bearing

Joint Bearing can withstand relatively high loads. Depending on their type and structure, they can carry radial loads, axial loads, or combined loads where radial and axial loads act simultaneously. As composite materials are inlaid on the outer spherical surface of the inner ring, the bearings can achieve self-lubrication during operation. They are generally used for low-speed oscillating motion and low-speed rotation, and can also perform tilting motion within a certain angular range. They can still operate normally when the misalignment between the supporting shaft and the housing bore is considerable.

Joint Bearing are widely used in engineering hydraulic cylinders, forging machines, construction machinery, automation equipment, automotive shock absorbers, water conservancy machinery and other industries.

Introduction and Classification of Joint Bearing

Joint Bearing are spherical sliding bearings. The basic type consists of an inner ring and an outer ring with spherical sliding contact surfaces. According to different structures and types, they can bear radial loads, axial loads, or combined loads with both radial and axial forces.

Due to their large spherical sliding contact area and large tilting angle, together with special processing adopted by most joint bearings — such as surface phosphating, galvanizing, chrome plating, or lining, inlaying and spraying on the outer sliding surface — they feature high load capacity and impact resistance, as well as corrosion resistance, wear resistance, self-aligning performance, good lubrication or self-lubrication without contamination from lubricant dirt. They can work normally even with installation misalignment. Therefore, spherical plain bearings are widely used in low-speed oscillating, tilting and rotating motions.