The Structure and Material of slewing Bearing
The common structural of slewing bearings are single row, double row four-point contact ball slewing bearings, double row angular contact ball slewing bearings, cross cylindrical roller and cross tapered roller slewing bearings, three row cylindrical roller slewing bearings, other different structural forms. According to whether the slewing bearings have gears or not and the distribution position of the gears, the bearings can be divided into No gear type, external gear type and internal gear type.


Our company manufacture the bearing ring materials are generally high alloy structural steel, such as 50Mn, 42CrMo, and other materials of various special purposes. The blank of the rolling ring is made by rolling or forging, and is processed by normalizing or tempering, which can fully guarantee the mechanical properties of the material. Users can choose appropriate materials according to their needs. The rolling body material of the slewing bearing are GCr15 or GCr15SiMn. The materials of cage and spacer mainly include NO.20 steel, aluminum alloy, brass, nylon, etc. The material performance and quality requirements all meet the relevant national and industrial technical standards. Sealing ring material is mainly oil - resistant nitrile rubber, fluorine rubber, etc.