Composite spherical bearings are made with high quality materials from designs by W.M. Berg engineers and technicians. Composite spherical bearings are made from stainless steel with an outer race and are self-lubricating. It is important that these bearings are not lubricated, as lubrication reduces their lifetime. The sliding surfaces of composite bearings are maintenance free and are often used for offshore industry needs, steel construction for hydraulic engineering. W.M. Berg is committed to quality since 1967 and provides you the utmost best product to fit your needs and application. The composite spherical bearings from W.M. Berg come in a wide variety of sizes, and W.M. Berg engineers and technicians are also available to work with you to customize bearings to fit your exact specifications.