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Spherical Ball Bushings

Spherical ball bushing is a type of bearing designed to manage high radial loads and provide consistent performance under conditions of marginal lubrication, extreme speed, and critical stress. These bushings allow for fluid movement in applications where friction and bumps could damage machinery.
 
Consist of a spherically ground inner ring housed in a mating outer ring without any rolling elements. This design helps accommodate shafts or rods with variable amounts of misalignment, making them ideal for applications that require smooth and reliable movement.
Hydraulic cylinders and excavators and many offroad vehicles suspensions. 
Common applications use are Mining trucks, A-frames, dump cylinders, and steering cylinders. Bulldozers: Equalizer track bars, lift and tilt cylinders, and push blades.