Kobelco slewing  bearing in the real industrial application is very extensive, known as: "machine joints", its main applications are widely used in: crane, rail crane, port cranes, deck cranes, metallurgical cranes, container cranes, excavators, filling machine, and CT machine standing wave therapy apparatus, navigation, radar antenna tower, missile launcher, tanks and robots, and revolving restaurant, etc.Rotary bearing applications, engineering machinery is the place of the original application is also the most widely used of slewing bearing, such as disintegration of earth moving machinery, excavators, machine, material piling and taking machine, flat machine, roller, compaction machine, drilling machine, boring machine, etc., in addition to all kinds of engineering machinery, the application range of the rotary bearing has been gradually expanded, such as port equipment, metallurgical equipment, drilling platform equipment platform already USES a wide range of rotary bearing instead of the original bearings.