LTZC contributes to efficient operation in the wind turbine bearing industry

LTZC: Ushering in a New Era of Wind Turbine Bearings

Against the backdrop of global energy structure transformation, wind power, as a crucial pillar of renewable energy, has received unprecedented attention regarding equipment reliability and long-term stability. As a professional manufacturer and supplier of wind turbine bearings, LTZC is committed to providing high-performance, high-reliability bearing solutions for the wind power sector, enabling wind turbine equipment to operate stably for extended periods even in harsh environments.

In its recently released new product series, LTZC showcased a full range of solutions, including wind turbine bearings, precision bearings, bearing gears, and slewing ring bearings, demonstrating its technological depth in the wind turbine bearing field.

I. Stringent Requirements for Wind Turbine Bearings

The wind power industry places higher demands on bearings, which must withstand extreme environments and operate stably over long periods.

Ultra-high load-bearing capacity: Main bearings must withstand enormous radial, axial, and overturning moments, with cumulative effects over many years;

Long lifespan and high reliability: Wind turbines are often planned for 20-25 years of operation, allowing only minimal maintenance downtime;

High operational accuracy and low vibration and noise: Otherwise, power generation efficiency and safety will be affected;

Adaptability to extreme environments: Such as offshore salt spray, high humidity, high dust, high/low temperatures, etc.;

Customized and diversified requirements: Different turbine models, locations, and load structures result in significant differences in bearing types and specifications.

Therefore, bearing manufacturers must possess advanced materials and manufacturing processes, as well as system design, customization capabilities, and quality management systems. LTZC, based on a deep understanding of these industry pain points, has proposed a "full-series, all-environment, full-life-cycle protection" solution.

II. LTZC's Technological Breakthroughs and Product System

• Wind Turbine Bearing – Main Bearings

LTZC wind turbine main bearings utilize an optimized raceway structure, a high contact angle design, and a reinforced roller arrangement, resulting in approximately 20% higher load-bearing capacity per unit area compared to traditional designs.

Bearing diameters range from 600 mm to 4,000 mm, meeting the needs of small to medium-sized offshore wind turbines.

By optimizing roller length and raceway curvature, stress distribution is improved, reducing localized stress concentration, delaying wear, and reducing early fatigue crack formation.

• Precision Bearing – High-Precision Rolling Bearings

For low-to-medium speed, high-precision components of wind turbines (e.g., yaw systems, pitch systems), LTZC provides high-precision (≤ 0.005 mm misalignment) rolling bearings to ensure accurate system positioning.

High-purity bearing steel  is used, followed by vacuum degassing, overall quenching and tempering, achieving a raceway hardness of 60±1 HRC.

• Bearing Gear – Integrated Bearing and Gear Components

For the yaw and pitch drive components of wind turbine nacelles, LTZC offers an integrated bearing and gear solution, combining rolling bearings with large-module gears in a compact design, achieving high torque transmission efficiency and reasonable load distribution between gears and rolling elements.

The gear portion uses high-strength alloy steel, undergoing carburizing, cryogenic treatment, and gear grinding; the raceway maintains high hardness and high surface finish, balancing fatigue resistance and positioning accuracy.

• Slewing Ring Bearing – Large slewing ring bearings with diameters ranging from 800 mm to 6,000 mm are available for offshore wind turbine tower top slewing structures, yaw systems, pitch systems, and other applications.

The structure can be configured with single-row, double-row, or triple-row rollers; additional multi-labyrinth seals and high-performance composite sealing rings can be added as needed to cope with complex environments such as salt spray, humidity, and dust.

The raceways and rollers are strengthened through rolling and surface residual compressive stress control, significantly improving fatigue life and making them suitable for long-term offshore operation.

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IV. Stringent Manufacturing and Quality Management System

Annual Production Capacity: LTZC possesses automated CNC machining centers. From forging to final packaging, the entire process is completed independently by the LTZC team, with an annual production capacity exceeding 50,000 sets of slewing bearings and large wind turbine bearings.

Certifications and Qualifications: LTZC has passed ISO 9001 / ISO 14001 / ISO 45001 management system certifications and can provide customers with third-party testing reports (such as material reports, hardness reports, RA surface roughness, X-ray non-destructive testing, vibration/noise test reports, etc.).

This stringent system makes LTZC not only a "bearing manufacturer" but also a "wind turbine bearing solutions provider."

V. Typical Customer Cases and Market Feedback

**8MW Offshore Wind Power Project:** A European offshore wind power operator used LTZC's 4,200 mm slewing bearings, which have been in operation for over 5 years without any bearing replacements or maintenance records, achieving an average annual availability of 99.3%.

**Onshore Wind Farms in Extremely Cold Regions:** At a wind farm in Siberia, LTZC's precision bearings operated continuously for two winters at -35℃, demonstrating stable operation and no cold start failures.

**Yaw + Pitch Integrated System:** A large wind turbine manufacturer used LTZC bearing gear components, reducing the installation time of the entire yaw system by approximately 15%, resulting in a compact structure and high assembly efficiency.

Customer feedback generally indicates that the "high load capacity, high reliability, and high customization" characteristics of LTZC bearings significantly reduce equipment downtime and maintenance costs, improving power generation and overall lifecycle economics.

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VI. Why Choose LTZC Bearing — The Industry's Trusted Choice

Full Range Coverage — One-stop supply from main bearings, precision bearings, slewing bearings, slewing drives to integrated gear systems;

High Technological Barriers — Combining technologies from materials science, structural mechanics, heat treatment, surface strengthening, sealing protection, and manufacturing processes;

Customized Service Capabilities — Providing specialized design and engineering support for different wind turbine models, operating environments, and lifespan requirements;

Strict Quality Control — A rigorous quality management system and testing procedures ensure traceable product quality;

Extensive Application Experience — Extensive case studies supporting various wind turbine applications, from onshore to offshore, from small to large.

These are the reasons why LTZC has become a trusted bearing supplier for numerous wind turbine bearing manufacturers and operators worldwide.

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