WJY bearing: Excellence in Backing Bearings Manufacturing

WJY (Wafangdian Jinyu) Bearing specializes in manufacturing medium/large bearings and precision mechanical components. We focus on R&D, production, and sales of high-quality bearings for global industries. Our key product, Backing Bearings, highlights our expertise in precision engineering and durability. With ISO 9001 certification, we ensure strict quality control and reliable solutions for mining, construction, and heavy machinery. Contact us for efficient bearing solutions.

Superior Material Selection & Durability

Our Backing Bearings are manufactured using high-grade carburized steel (G20Cr2Ni4A) with advanced heat treatment processes, ensuring exceptional wear resistance and extended service life. The deep carburized layer (≥2.0mm) provides a surface hardness of HRC60-64 and a tough core (HRC30-40), making them ideal for heavy-load and high-stress industrial environments.

P4-Grade Precision Engineering for Optimal Performance

We utilize state-of-the-art CNC machining and grinding technologies to achieve P4-grade precision (ISO P4/ABEC 9 standard):

• Dimensional tolerance controlled within ±2μm
• Roundness error ≤0.5μm
• Cylindricity error ≤1μm
• Surface roughness Ra ≤0.025μm

This precision enhances load distribution, reduces friction by up to 30%, and minimizes energy loss in machinery.

Application Fields

1. Metal Processing & Steel Industry

• Rolling Mills: Used in hot rolling mills, cold rolling mills, and continuous rolling mills to support heavy loads and maintain precision during steel sheet/plate forming.
• Steelmaking Equipment: Integrated into steel furnaces, ladle turrets, and steel conveying systems for high-temperature, high-stress operations.
• Heavy Machinery in Steel Plants: Ideal for rolling mill drives, coiling machines, and straightening equipment.

2. Mining & Quarrying

• Mining Equipment: Applied in crushers, ball mills, and conveyor systems to withstand abrasive materials and continuous heavy loading.
• Drilling Machinery: Supports rotary drills and mining trucks in harsh underground/overground environments.

3. Construction & Heavy Engineering

• Earthmoving Equipment: Used in excavators, bulldozers, and loaders for durable performance in construction sites.
• Cranes & Hoisting Systems: Provides stable rotation and heavy-load support in tower cranes and port machinery.

4. Power Generation

• Turbines & Generators: Suitable for industrial turbines, gearboxes, and power plant auxiliary equipment requiring high-precision and low-friction operation.
• Renewable Energy: Used in wind turbine gearboxes and hydroelectric machinery for long-lasting reliability.

5. Industrial Machinery

• Paper & Pulp Industry: Supports large rollers and presses in paper manufacturing lines.
• Plastics & Rubber Machinery: Used in extruders and injection molding machines for consistent load distribution.

Rigorous Quality Control

Every Backing Bearing undergoes stringent inspection processes before leaving the factory, including dimensional checks, hardness testing, and dynamic performance evaluations, with inspection reports issued for traceability. Our ISO 9001 – certified quality management system ensures consistent reliability and compliance with international standards, providing our customers with the confidence that our products will perform flawlessly in their operations.