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.
In the rotor shaft bearings , slewing gear box (growth machine), generator, yaw gear box (reducer), and yaw rotation seat, blade pitch moment rotation seat, hydraulic pumps and so on, many sites all use wind power bearing.
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