New Energy Slewing Bearings
New Energy Slewing Bearings
For Wind Turbines
Large Slewing Bearings for Wind Turbines
Three-row cylindrical roller slewing main bearings enable a more compact drivetrain for the wind turbine shaft system, withstanding full rotor load, improving shaft stiffness, and reducing nacelle weight and overall dimensions.
Three-row cylindrical roller bearings as main bearings
Main bearings are at the heart of every rotor in a wind turbine and play a central role in the efficiency of the entire system.
HKW typically uses three-row cylindrical roller slewing bearings as main bearings to support rotating components (the rotor), transfer complex loads from the rotor (axial force, radial force, overturning moment, etc.), and reduce friction. Wind power equipment places extremely high demands on bearing performance and reliability, as the bearings must withstand high dynamic loads and frequent shocks (such as gusts and turbulence). Our main bearings ensure that the rotor can rotate stably about its own axis under constant high loads, so our customers benefit from high bearing reliability.
Axial: the upper and lower rows of cylindrical rollers primarily carry axial loads
Radial: the middle row of cylindrical rollers primarily carries radial loads
Three-row cylindrical roller or double-row four-point contact ball slewing bearings applied as yaw bearings
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 blades) and allows it to rotate about the vertical axis. Located at the bottom of the nacelle, it carries 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 wind-facing angle.
Ultra-high load capacity and optimized load distribution
Fatigue resistance and long-life design
Resistance to offshore and extreme environments
Low maintenance cost and intelligent monitoring
Suitable for wind turbines of 10 MW and above
Three-row cylindrical roller or double-row four-point contact ball slewing bearings applied as pitch bearings
The pitch bearing, also known as the blade bearing, is an important component of the wind turbine pitch system and connects the rotor hub to the rotor blades. It not only adjusts the turbine orientation and blade pitch angle to keep the turbine facing the wind and output power within a safe, efficient range, but also enables aerodynamic braking or flexible blade rotation by changing the blade angle (pitch).
High load capacity and long service life
Composite friction-reduction technology and compact structure
Fatigue resistance and extended bearing fatigue life
Independent pitch control to reduce loads, aligned with the trend toward multi-megawatt turbines
Choose the right New Energy Slewing Bearings
Three-row roller slewing bearing used as an independent main bearing
For wind turbines
Ball or three-row roller slewing bearing
For wind turbines
Ball or three-row roller slewing bearing
For wind turbines
Partner with HKW
Want to learn more about choosing the right bearing?
Learn More
