... as "the machine joints"Slewing Bearings Characteristics1. Four-point contact ball slewing bearingsare of high static ... is more compactMajorApplicationsLifting machinery, Mining machinery, Construction machinery, Port machinery,Ship machinery, Missile launchers, High-precision Radar ... , Radar antena bearings, (Above: Slewing bearings _ Four point angular contact ball slewing bearing _ Nongeared bearing ...