Bearing's spherical plain bearings or bushings are steel-to-steel bearings consisting of a spherically ground inner ring housed in a matching outer ring without any rolling elements. While all plain bearings are precision ground and made from integrally hardened steel, custom orders are available, including special materials, clearances, surface finishes or configurations to suit unique applications. Design attributes Rings made from hardened steel help to provide consistent, reliable performance. Phosphate-treated rings coated with molybdenum disulphide (MoS2) to minimise friction on contact surfaces Simplified housing and shaft design reduces installation time. Applications A-frames, tipping cylinders, front and rear struts and steering cylinders for mining trucks Equaliser track bars, lifting and tilting cylinders, push shovels, trunnion balls and loosening shovels for bulldozers Articulated upper and lower steering cylinders and and bucket cylinders for wheel loaders Bucket bar and bucket cylinders for hydraulic excavators Other applications for space shuttles, heavy movable structures and miscellaneous vehicles Spherical Plain Bearing Spherical plain bearings (also known as spherical plain bearings, spherical ball bearings and ball bushings) have an inner ring with a convex outer ring and a correspondingly spherical but They are designed in such a way that they are particularly suitable for use in the production of bearings with a convex outer ring. Their design makes them particularly suitable for bearing arrangements where the alignment movement between shaft and housing must be adapted, or where oscillating or repeated tilting movements at relatively slow sliding speeds must be permitted.