Three types of special bearings for wind power generation are: yaw bearings, pitch bearings, and transmission system bearings (bearings for main shafts and gearboxes).
Yaw bearings are key components in wind turbines and have the following characteristics:
1. Strong load-bearing capacity: Yaw bearings need to support the huge weight of the wind turbine and transmit the torque generated by the wind.
2. Wear resistance: Yaw bearings need to operate for a long time in harsh working environments, so they need to have excellent wear resistance.
3. High precision: Yaw bearings need to maintain high precision to ensure smooth rotation and positioning of wind turbines.
Good sealing: The yaw bearing needs to prevent dust, moisture and other impurities from entering to maintain its normal operation and extend its service life.Propeller bearings are an important component in wind turbines and have the following main features:
1. Bear complex loads: The pitch bearing needs to withstand the axial force, radial force and overturning moment generated by the blades and the wind sweeping the blades.
2. Sealing and anti-corrosion: The pitch bearing has self-sealing and anti-corrosion properties and can work in harsh environmental conditions.
3. High reliability: The pitch bearing has a reliability of more than 99% within a service life of more than 20 years.
