Radial spherical plain bearing consists of an inner ring with a sphere convex outside surface and outer ring with a correspondingly sphere but concave surface. There are two main groups: steel-on-steel spherical plain bearings and maintenance-free spherical plain bearings. They are particularly suitable forbearing arrangements where alignment movements between shaft and housing have to be accommodated, or where oscillating movements or recurrent tilting movements must be made at relatively slow sliding speeds. |