Thrust joint bearing

The structure of joint bearings is simpler than that of rolling bearings, mainly consisting of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface.

It is generally used for low-speed swing motion, namely angular motion. Due to the spherical sliding surface, it can also perform tilting motion, i.e. centering motion, within a certain angle range. When the support shaft and the shaft shell hole are not concentric, it can still work normally. Self lubricating joint bearings are applied in industries such as water conservancy and professional machinery.

Joint bearings are widely used in engineering hydraulic cylinders, forging machines, construction machinery, automation equipment, automotive shock absorbers, water conservancy machinery and other industries. Joint bearings are spherical sliding bearings, which are basically composed of inner and outer rings with spherical sliding spherical contact surfaces.

Features:

Joint bearings have significant load capacity and impact resistance, as well as the characteristics of corrosion resistance, wear resistance, self centering, good lubrication, or self-lubricating without lubricating dirt pollution. Even if installed incorrectly, they can work normally. Therefore, joint bearings are widely used for lower speed swing, tilt, and rotation movements.

Classification:

Classification based on the direction of load bearing or nominal contact angle: Classification of joint bearings: radial joint bearings, angular contact joint bearings, thrust joint bearings, rod end joint bearings

Radial joint bearing: used to withstand radial loads, with a nominal contact angle ranging from 0 degrees to 45 degrees.

Radial contact radial joint bearing: A radial joint bearing with a nominal contact angle of 0 degrees, suitable for bearing radial loads. But it can also withstand small axial loads while bearing radial loads.

Angular contact radial joint bearing: A radial joint bearing with a nominal contact angle greater than 0 degrees but less than or equal to 45 degrees, capable of withstanding combined radial and axial loads.

Thrust joint bearing: used to withstand axial loads, with a nominal contact angle greater than 45 degrees to 90 degrees

Axial contact thrust joint bearing: A thrust joint bearing with a nominal contact angle of 90 degrees, suitable for bearing pure axial loads.

Angular contact thrust joint bearings: thrust joint bearings with a nominal contact angle greater than 45 degrees but less than 90 degrees are suitable for bearing axial loads, but can also withstand combined loads. At this time, their radial load value shall not exceed 0.5 times the axial load.