As a core component of the wind turbine drivetrain, the main bearings directly determine the operating efficiency and reliability of the complete unit.
Specializing in core bearing technologies, we mainly supply three-row cylindrical roller slewing bearings as wind turbine main bearings. These bearings support rotating assemblies including the rotor, withstand combined rotor loads from the rotor, and effectively reduce friction losses.
Wind turbines work in harsh operating conditions and are subject to high-intensity dynamic loads induced by gusts and turbulence. Three-row cylindrical roller main bearings offer extremely high structural stiffness and outstanding load-carrying capacity. They stably support the radial forces, axial forces, and overturning moments generated by the rotor, ensuring continuous and smooth rotor operation.
Three-row cylindrical roller main bearings deliver a step-change in turbine reliability, reducing drivetrain failure rates by more than 90%, significantly shortening downtime for maintenance, reducing overall operating costs at the source, and maximizing lifecycle economic benefits.

The yaw bearing is a key component of the yaw system. It is a large bearing that supports the tower-top structure (including the nacelle and rotor blades) and allows it to rotate about the vertical axis. Mounted beneath the nacelle, it supports the full mass of the wind turbine's main drivetrain, transfers aerodynamic thrust to the tower, and enables accurate, timely adjustment of the turbine's yaw angle.

The pitch bearing, also known as the blade bearing, is a core component of the wind turbine pitch system and connects the hub to the rotor blades. Through the pitch bearing, the system adjusts the blade pitch angle to stabilize power output and keep the turbine operating in a safe and efficient operating envelope. Blade angle adjustment also enables aerodynamic braking and ensures controlled rotation of the rotor blades.