Radial spherical plain bearings by a convex spherical outer surface of the inner ring and a corresponding concave spherical inner surface of the outer component. This design is particularly suitable for bearing arrangements the following conditions: must be able to adjust the shaft and housing on the heart between the deviation, or must be able to slip in a relatively slow speed for reciprocating or periodic deflection or rotational movement. 
 SKF need to maintain the radial spherical plain bearings with steel on steel sliding contact surface combinations. With this combination of sliding contact surfaces of bearings require regular lubrication supplement. Such a sliding surface with high wear resistance, especially for alternating must bear the heavy, shock loads or heavy static load bearing configuration. Extension of the inner sides of the bearing with the cylinder can be used to replace conventional isolation on both sides of the bearing sleeve bearing configuration, or dedicated to a specially designed hydraulic cylinders bearing configuration.