In the energy conversion process of wind turbines, the yaw system acts as the rudder ensuring efficient capture of wind energy. As the core component of this system, HKW yaw bearings lay a solid foundation for stable turbine operation with their outstanding performance.

Wind Turbine Yaw System

The yaw system (also known as the wind direction system or azimuth control system) is installed between the tower and the main frame, performing three critical functions:

1. Precise Wind Tracking: Current-time wind direction sensing&drive compartment and wind turbine steering ensure blades always face the incoming wind. This maximizes wind energy capture and boosts power generation efficiency.

2. Damage Reduction and Machine Production: Minimizes vibration and noise caused by wind direction deviation, reduces component wear, and extends the overall service life of the unit.

3.Security Guarantee: By controlling the locking torque, the unit is securely positioned after wind alignment, preventing safety incidents caused by sudden wind direction changes.

HKW Yaw Bearing

HKW typically employs double-row four-point contact ball slewing bearings or three-row cylindrical roller slewing bearings as yaw bearings based on the load characteristics of yaw bearings (simultaneously bearing axial loads, radial loads, and overturning moments). Their five major performance advantages directly address critical operational challenges in wind power:

High-load Capacity, Stable Load Resistance: Effortlessly supports the nacelle’s self-weight, axial forces, radial forces, and overturning moments transmitted through the entire housing, accommodating complex load requirements under various wind conditions.

High Precision, Precise Wind Alignment: Employing precision gear ring design and advanced machining techniques, the system enables fine-tuning of nacelle orientation, minimizing wind angle deviation to ensure optimal wind energy capture efficiency.

Long Service Life, Reduced Maintenance and Operation: High-strength alloy steel is selected, combined with surface hardening treatment and optimized sealing structure, delivering outstanding fatigue resistance. Designed for a service life exceeding 20 years, it matches the entire life-cycle of the unit.

High Adaptability, No Matter the Environment: Stable operation over a broad temperature range of -40°C to +95°C is ensured by a special anti-corrosion coating and specialized sealing system that can survive heavy salt fog exposure at sea and sand dust/humidity corrosion on land.

Low Loss, Increased Power Efficiency: The coefficient of friction is greatly decreased by the exact matching of the raceway and rolling elements. This increases the unit's overall energy efficiency by reducing energy loss during yawing.

HKW Yaw Bearing Compatibility Range

HKW yaw bearings have established a comprehensive product portfolio, compatible with onshore and offshore wind turbines ranging from 1.5 MW to 25 MW in power rating. Leveraging customized design capabilities, we precisely match installation dimensions and performance parameters for different turbine models, providing reliable and efficient yaw bearing solutions for global wind turbine manufacturers.