Yaw Ring

The yaw ring is the crucial part in the yaw system of the wind turbines, and its function is equivalent to the large sliding bearing.. It is located at the bottom of the nacelle seat, connected with tower by bolts, supporting nacelle by means of the sliding surface, and it is meshed with four sets of yawing reducer, driven by a yaw motor to the nacelle to get overall slow rotation.The typical design life of yaw gear rings is 20 years, due to the special installation position/maintenance difficulty and high cost of replacement, higher requirements and manufacturing accuracy is needed.UWE yaw ring is a large ring gear, the material is QT alloy steel; according to the requirements of yaw ring,the module is generally between 10 ~ 20 and tooth surface requires hardening, the hardness of the general requirements is above 50HRC.