The slewing bearing is a kind of large bearing to endure larger axial load, radial load and upsetting moment, etc general load special structure. It can meet the different requirements of all types of mainframes under the different working conditions. It is widely used in crane traffic machinery, extractive machinery, architectural engineering machinery and port machinery, etc large slewer.

JY-422 external tooth four-point ball turntable bearing with a large C-arm cerebral angiographer and insertion medical treatment system manufactured by my corporation, where there are high precision bearings with low noise and convenient installation. JY-844 anodontia four-point ball slewing bearing with a large CT machine whole-length angiographer and insertion medical treatment system, where there are high precision bearings with light product, low noise and convenient installation.