Judging from the current installation and usage, the pitch slewing bearings mostly use double-row four-point contact ball slewing bearings, the yaw slewing bearings mostly use single-row four-point contact ball slewing bearings, and a small amount of cross-roller slewing bearings or other forms are used.
The standard stipulates that the material of the yaw and pitch bearing rings is 42CrMo, and the heat treatment adopts the overall quenching and tempering treatment. Due to the complex force of the yaw and pitch bearings of wind turbines, and the relatively large shocks and vibrations the bearings bear, it is required that the bearings can withstand both shocks and large loads.
If you need any slewing bearing for wind turbine,please contact our company Xuzhou Wanda slewing bearing co.,ltd.