Bearings are widely used in the wind power industry and is an important component parts of wind turbines most part, wind power bearing related to the entire range of used from blades, spindles and yaw bearings used in the gearboxes and generators smaller high-speed bearings in general, bearing a wind machine in the weak parts. Particularly for gearboxes, large bearing spindle and the generator can cause major malfunction in some models of wind turbines. Currently, for wind turbines The bearings consist of spherical roller bearings, ball bearings and rotating pivot bearing components.
Bearing is the other parts on the shaft will produce relative motion, used to reduce friction coefficient during power transmission and keep the machine shaft center fixed position, its main function is to support the rotary body, in order to reduce the equipment in the transmission process of mechanical load friction coefficient. According to the motion of the frictional properties of different components, bearings can be divided into two types of rolling bearings and sliding bearings.