The characteristics and applications of joint bearings:
Joint bearings are a type of sliding bearings with a special structure. Its structure is simpler than rolling bearings. It mainly consists of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface, which can withstand large loads. Depending on its different type and structure, it can withstand radial loads, axial loads, or combined loads that exist both radially and axially. Generally used for low-speed swinging motion (i.e. angular motion), as the sliding surface is spherical, it can also perform tilting motion (i.e. centering motion) within a certain angle range. It can still work normally when the supporting shaft and the shaft shell hole are not concentric. Joint bearings can be divided into radial joint bearings, angular contact joint bearings, thrust joint bearings, and rod end joint bearings based on their load-bearing capacity and direction. The nominal contact angle of radial joint bearings (GE type) is 0 degrees, suitable for bearing radial loads and smaller axial loads. Angular contact joint bearings (GAC type) are further divided into angular contact radial joint bearings and angular contact thrust joint bearings. The nominal contact angle of angular contact radial joint bearings is greater than 0 degrees but less than or equal to 30 degrees, suitable for bearing combined loads of radial and axial loads simultaneously; The nominal contact angle of angular contact thrust joint bearings is greater than 30 degrees but less than 90 degrees, suitable for bearing axial loads and can also withstand combined loads, but its radial load must not exceed 0.5 times the axial load. The nominal contact angle of thrust joint bearings (GX) is 90 degrees, suitable for bearing axial loads, but not radial loads. Rod end joint bearings are suitable for bearing axial loads with smaller radial loads (generally less than or equal to 0.2 times the radial load) Joint bearings have lubrication and self-lubricating types.
Joint bearings are a type of sliding bearings with a special structure. Its structure is simpler than rolling bearings. It mainly consists of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface, which can withstand large loads. Depending on its different type and structure, it can withstand radial loads, axial loads, or combined loads that exist both radially and axially. Generally used for low-speed swinging motion (i.e. angular motion), as the sliding surface is spherical, it can also perform tilting motion (i.e. centering motion) within a certain angle range. It can still work normally when the supporting shaft and the shaft shell hole are not concentric. Joint bearings can be divided into radial joint bearings, angular contact joint bearings, thrust joint bearings, and rod end joint bearings based on their load-bearing capacity and direction. The nominal contact angle of radial joint bearings (GE type) is 0 degrees, suitable for bearing radial loads and smaller axial loads. Angular contact joint bearings (GAC type) are further divided into angular contact radial joint bearings and angular contact thrust joint bearings. The nominal contact angle of angular contact radial joint bearings is greater than 0 degrees but less than or equal to 30 degrees, suitable for bearing combined loads of radial and axial loads simultaneously; The nominal contact angle of angular contact thrust joint bearings is greater than 30 degrees but less than 90 degrees, suitable for bearing axial loads and can also withstand combined loads, but its radial load must not exceed 0.5 times the axial load. The nominal contact angle of thrust joint bearings (GX) is 90 degrees, suitable for bearing axial loads, but not radial loads. Rod end joint bearings are suitable for bearing axial loads with smaller radial loads (generally less than or equal to 0.2 times the radial load) Joint bearings have lubrication and self-lubricating types.
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