Wind Turbine Gearbox Bearings
-- Steady & Reliable Manufacturer --
Brief Description
Large, high-reliability bearings engineered for the complex, variable loads of wind energy generation, focusing on extreme fatigue life and resistance to premature white etching crack (WEC) failure.
Introduction
Wind turbine gearboxes are high-value, hard-to-access components demanding bearing reliability over a 20+ year lifespan. The bearings must withstand sudden, high shock loads from wind gusts, low speed/high load conditions, and frequent starts/stops. Our solutions for this sector, including Spherical Roller, Cylindrical Roller, and Tapered Roller Bearings, utilize ultra-clean steel and sometimes surface treatments (e.g., black oxidation) to combat WEC, a major cause of premature failure. Precision geometry and controlled clearances (C3/C4) ensure optimal running under the high thermal and torque demands of renewable energy generation.
Related products
Specification Standards
| Key Feature | Common Type | NSB Offering |
|---|---|---|
| Reliability Focus | High Fatigue Life (L10 Life) | Using ultra-clean steel to prevent micropitting and fatigue. |
| WEC Mitigation | Surface Treatment (Black Oxidation/Coatings) | Specialist treatment to reduce risk of premature failure. |
| Load Capability | High Radial, Axial, and Shock Loads | Often large, self-aligning bearings (SRBs) in the main stages. |
| Clearance/Lubrication | C3/C4 Clearance & Specialized Oil | Designed to handle large temperature changes and heavy duty oil. |
| Vibration Control | Condition Monitoring Ready | Optimized for stable running to facilitate early fault detection. |
Applications
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Main Gearbox Planetary Stages: Handling the highest torque and heaviest loads.
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High-Speed Output Shafts: Precision bearings (CRBs, ACBBs) for generator connection.
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Yaw and Pitch Systems: Supporting the rotation of the nacelle and blade angles (often slewing rings).
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Generator Bearings: High-speed, high-precision operation.
Key Advantages
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WEC Failure Reduction: Specialized steel and coatings significantly extend life in failure-prone stages.
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Extreme Shock Load Tolerance: Robust design handles sudden, high-impact forces caused by wind gusts and rapid braking.
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20-Year Service Design: Components are engineered for maximum longevity and minimized, expensive maintenance interventions.
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Alignment Accommodation: Spherical types naturally handle the minor shaft bending and misalignment common in large structures.
About Us
NINGBO SANYA BEARING CO., LTD.
Ningbo Sanya Bearing Co., Ltd. is a professional China Wind Turbine Gearbox Bearings Manufacturers and Custom Wind Turbine Gearbox Bearings Suppliers.And it established in 1994 stands right at the prime location of the Yangtze River Delta. Specialized in the production of high-quality deep groove ball bearings and insert bearings. It has emerged as a modern company integrating product development, design, manufacturing, sales and service. It can produce bearings with an inner diameter of 3mm to 100mm and customize various non-standard Custom Series 6000 Two Contact Seals Deep Groove Ball Bearing with highly-automated equipment, stable quality, and complete testing methods ensuring the quality of its products. With the vigorous development of the foreign trade department, our business in bearing production and sales in 2018 far exceeded 20 million US dollars, and the products were sold in more than 50 countries and regions.
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