In the core equipment of the new energy wind power industry (such as main shafts, gearboxes, yaw and pitch systems of wind turbines), wind power bearings play an absolutely core role in supporting the massive weight of rotors and bearing extreme wind loads and complex alternating stresses. Wind power equipment is usually installed in extremely harsh environments such as deserts and offshore areas, facing strong gusts, high humidity, and drastic temperature differences year-round. Within a design life of up to 20 years, traditional bearings are highly susceptible to micro-fatigue spalling caused by internal material inclusions, or early failure due to poor lubrication in the yaw system. Wind turbine manufacturers urgently need support bearings customized for wind power scenarios, featuring ultimate anti-fatigue and ultra-long service life characteristics.

Facing the stringent requirements of the wind power industry for "20-year maintenance-free" and "high reliability," support systems must not only possess extremely high rated dynamic loads but also maintain absolute dimensional stability and anti-fretting wear performance under complex alternating loads. Due to insufficient steel purity, traditional bearings are highly susceptible to fatigue cracks in the subsurface of the raceway under massive torques of tens of megawatts, which rapidly expand. The market urgently demands a wind power bearing solution that can break through the dual bottlenecks of material fatigue limits and complex working conditions, achieving high reliability throughout the entire life cycle, providing solid protection for the efficient operation of new energy equipment.

NMT New Energy Wind Power Bearings are born to conquer the extreme transmission challenges of wind power equipment. This series achieves disruptive breakthroughs in materials by using ultra-high-purity bearing steel purified through dual vacuum degassing and rare-earth micro-alloying. The oxygen content is reduced to an extremely low level, fundamentally eliminating the "invisible killer" of fatigue failure. For the heavy-duty working conditions of wind power yaw and main shafts, NMT adopts the exclusive "Aote Bailian" gradient heat treatment process to form a "hard outside and tough inside" metallographic structure. The surface hardness reaches HRC62-64 for wear resistance, while the core maintains high toughness to absorb the impact loads caused by strong gusts.

In precision manufacturing and quality control, NMT enforces industrial-grade stringent standards for every component of its wind power bearings. Raceways adopt a combination of laser micro-texturing and nano-level grinding processes, with surface roughness controlled at an extremely low level. Combined with an optimized logarithmic curve profiling design, contact stress is evenly distributed, completely eliminating edge stress concentration. All components undergo strict non-destructive testing and dimensional inspection before assembly. Finished products undergo 100% hardness, residual magnetism, and rotational accuracy testing, eliminating any products with minute defects, ensuring the ultimate performance of batch products under extreme conditions such as wind power equipment.

With rich specifications, these bearings are widely used in wind turbine main shafts, gearboxes, yaw and pitch systems, offshore wind power heavy-duty equipment, wind power installation vessels and lifting equipment, satisfying the supporting needs of various heavy-duty, anti-fatigue, long-life, and impact-resistant transmission nodes.

Core Product Advantages

Ultra-high-purity bearing steel purified through dual vacuum degassing and rare-earth micro-alloying significantly reduces non-metallic inclusion content, fundamentally enhancing the anti-fatigue limit and service life;

Exclusive "Aote Bailian" gradient heat treatment process forms a "hard outside and tough inside" metallographic structure, easily handling huge impacts caused by strong gusts and extreme alternating loads;

Laser micro-texturing and nano-level ultra-precision grinding raceway processes, combined with logarithmic curve profiling design, ensure uniform contact stress distribution, completely eliminating edge stress concentration and early spalling;

Optimized internal geometric structure and special surface strengthening treatments significantly enhance anti-fretting wear capability, ensuring the ultra-long service life of yaw and pitch systems during long-term micro-amplitude swinging;

Special anti-corrosion coatings and high-reliability sealing structures perfectly adapt to the high salt spray and high humidity environments of offshore wind power, preventing rust and lubrication failure caused by moisture intrusion;

100% full-process quality control and non-destructive testing ensure precise dimensions and no internal micro-defects for each bearing under massive torques of tens of megawatts;

Full life-cycle high-reliability design meets the stringent requirement of 20-year maintenance-free for wind power equipment, significantly reducing the replacement costs of high-altitude operations and offshore O&M;

Excellent impact resistance and wear resistance maintain ultra-low precision drift and mechanical wear under complex and variable wind farm working conditions, ensuring power generation efficiency.

Typical Application Scenarios

Wind turbine main shafts and gearboxes; Yaw and pitch drive systems; Offshore wind power heavy-duty equipment; Wind power installation vessels and lifting equipment; Core transmission hubs of new energy wind farms; Heavy-duty power generation equipment in extreme environments.

Precision Quality Assurance

NMT New Energy Wind Power Bearings use ultra-high-purity bearing steel as core raw materials, subject to strict material purity and non-destructive testing upon incoming. After precision turning, rings undergo the "Aote Bailian" gradient heat treatment and surface strengthening treatments, with strict control over raceway surface roughness and micro-geometric accuracy. Precision rolling elements are fully automatically sorted for size, roundness, and weight to ensure consistent load distribution within the same bearing set. All components undergo strict cleaning and inspection before assembly. Finished products undergo 100% hardness, residual magnetism, and rotational accuracy testing. Unqualified products are completely rejected, ensuring the ultimate performance of batch products under extreme conditions such as wind power equipment, providing reliable support solutions for new energy equipment.

Product Series

Wind power main shaft bearings, wind power yaw and pitch bearings, wind power gearbox bearings; Selection is based on installation space, anti-fatigue requirements, impact-resistance levels, and anti-corrosion performance.

Brand Strength

NMT is deeply engaged in the R&D and manufacturing of new energy wind power bearings. Targeting industry pain points in wind power scenarios—where material inclusions trigger fatigue spalling, strong gust impacts lead to early failure, high salt spray environments in offshore areas cause rust, and high-altitude O&M costs are high—NMT continuously optimizes ultra-high-purity bearing steel materials, the "Aote Bailian" gradient heat treatment process, and anti-fretting structural designs. This effectively solves fatal defects of traditional bearings in wind power equipment such as easy spalling, easy wear, and short service life. It significantly enhances the operational safety and power generation efficiency of wind power equipment, helping high-end wind power equipment manufacturing enterprises break through precision transmission bottlenecks and seize the global new energy equipment intelligent manufacturing market.