Rod end joint bearing:
Joint bearing is a spherical sliding bearing, the basic type is composed of a spherical sliding spherical contact surface of the inner and outer ring. The joint bearing is mainly composed of an inner ring with an outer ring and an outer ring with an inner sphere, which can bear a large load. According to its different type and structure, it can bear radial load, axial load or radial and axial combined load. Because the outer sphere of the inner ring is embedded with composite material, the bearing can be self-lubricated during operation. Generally used for low velocity swing motion, but also can be made in a certain Angle range of inclined motion, when the bearing shaft and the axial shell hole is not large concentricity, still can work normally. Self-lubricating joint auxiliary support should be used in water conservancy, professional machinery and other industries. Because the spherical sliding contact area of joint bearings, large inclination Angle, but also because most of the joint bearings adopted a special process treatment, such as surface phosphating, galvanized, chromium plating or sliding surface lining, pad, spray, etc. Therefore, it has a large load capacity and impact resistance, and has corrosion resistance, wear resistance, self-aligning, good lubrication or self-lubricating dirt pollution characteristics, even if the installation dislocation can also work normally. As a result, joint bearings are widely used in low velocity oscillating motion, inclined motion and rotary motion. Spherical plain bearings and rod end joint bearings are available in various designs and have different combinations of sliding contact surfaces. Each design and combination has a unique performance that makes it particularly suitable for certain applications.
According to GB/T9161 standard, the type can be divided into: knuckle-end joint bearing (type code: SQ) with bow-bar tee head; Knuckle bearing of straight tee head and bar end (type code: SQZ); Single tee end joint bearing (type code: SQD); Left-handed internal screw assembly rod end joint bearing (type code: SLLB); Assembly rod end joint bearing with left-handed external thread (type code: SALB); Left-handed bar end joint bearing (type code: SLLB); Left-handed single-rod joint bearing (type code: SQLD); Rod end joint bearing with cylindrical welding type (cylindrical) (type code: SK); Bar end joint bearing with flat base welded type (square type) (type code: SF); Rod end joint bearing with locking mouth (type code: SLR).