Single row ball slewing bearing  are four point contact bearing, it has only one row of steel balls. They could bear axial load, radial load and tilting moment at the same time. One row four point contact ball slewing rings are composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four points. There are three types of this kind of single row 4 points contact ball slewing bearing: without gear bearing (non tooth), external gear bearing (external tooth), and Internal gear bearing (internal tooth). Single row ball slewing bearing ring is the basic type used most widely in different field. As a professional manufacture that produces single row ball slewing bearing, we can accept custom design slewing bearings and are equipped with CAD, 3D model for single row ball slewing bearing could also be provided. Our delivery for the one row ball slewing ring is fast and will arrive on time. In our company, the load capacity is big and OEM service is also provided. The materials of the single row ball slewing bearing are mainly 50 Mn, 42CrMo and C45. The single row ball slewing ring has been widely used in many applications: