Large Diameter Custom Forged Heat-Treated TRB Rings

Tapered Roller Bearing TRB Rings for High-Load Applications

The Tapered Roller Bearing (TRB) is a critical component in large-scale power transmission systems, especially in wind turbine main shafts, where it withstands both radial and axial loads. Our Inner & Outer Tapered Roller Bearing Rings serve as precision TRB Bearing Ring Forgings , forming the core structure of full bearing assemblies. Their dimensional accuracy, geometric stability, and controlled internal microstructure directly influence the bearing's performance and service life.

Our large diameter bearing rings are expertly forged using Precision Ring rolling Forging technology to meet the demanding requirements of modern heavy industries. With dimensions ranging from 400 mm to 5000 mm, these custom forged bearing rings serve their roles in high-load, high-stress environments such as wind turbine main shafts, Mining Machinery, steel rolling mills, and marine equipment.

Whether for single-row tapered roller bearings (TRB), spherical roller bearings (SRB), or special thrust applications, our extra-large bearing rings offer: superior structural integrity, enhanced fatigue resistance, high dimensional accuracy, stable internal grain flow & microstructure, and custom Machining Services to semi-finished or finished condition.

Manufacturing Process & Quality Control

Our large size bearing rings are manufactured from high-carbon alloy steel and follow a strict quality and production workflow:

This process ensures each bearing ring meets stringent dimensional, mechanical, and fatigue-resistance standards for heavy-duty applications.

Discover our commitment to quality by visiting our Quality Assurance page.

Specifications

Industry Applications 

While our TRB bearing rings are extensively used in leading wind turbine systems, their versatility makes them suitable for various heavy-duty applications such as:

Key Advantages

• Large Size & Heavy Load Capacity – Diameter larger than 1,000 mm, suitable for high-load industrial applications.
• High Strength & Fatigue Resistance – Ring-rolled forging combined with quenching and tempering ensures long service life under extreme conditions.
• Precision Machining Base – Blank quality guarantees subsequent processing achieves tight tolerances and optimal performance.
• Reliable Material – Premium high-carbon alloy steel delivers toughness, durability, and fatigue resistance