Double-row Tapered Roller Bearing Rings TRB Rings

The double-row tapered roller bearing (TRB) is a high-precision rolling bearing designed to withstand large radial loads and bidirectional axial loads. Its internal configuration features two rows of symmetrically arranged tapered rollers, providing superior load-carrying capacity and rigidity compared with single-row TRB bearings.

Our double-row TRB rings (inner & outer rings) are high-quality alloy bearing Steel Forgings, manufactured to achieve high dimensional accuracy, excellent fatigue resistance, and long service life. These Bearing Rings ensure stable operation under heavy-load, impact, or low-speed conditions, making them ideal for wind turbines and other heavy Industrial Machinery.

Manufacturing Process & Quality Control

We follow a strict manufacturing and quality inspection process to guarantee the integrity and performance of every bearing ring:

• Dimensional Check
• Ultrasonic Testing (UT)
• Magnetic Particle Testing (MT)
• Spectrochemical Analysis
• Traceability Marking

Product Specifications

• Material: High-carbon alloy bearing steel (e.g., 42CrMo4, 34CrNiMo6)
• Outer Diameter: 400 mm – 5,000 mm
• Weight Range: 100 kg – 6 tons
• Height: ≤ 800 mm
• Precision: ISO International Standard

Industry Applications

• Wind Turbine: Main shafts, gearboxes, and large transmission systems for multi-megawatt wind turbines.
• Heavy Machinery & Mining Equipment: Rolling mill neck bearings, excavators, gear reducers, and mining shovels.
• Petroleum & Gas Equipment: Top drives, universal joints, rotary systems, and extrusion equipment.
• Industrial Power Transmission Systems: Large gearboxes, compressors, pumps, and differential systems.

Product Advantages

• High Reliability: Full-process quality control from raw materials to final inspection ensures stable performance under extreme conditions.
• Extended Service Life: Optimized heat treatment and surface enhancement improve fatigue resistance and reduce maintenance.
• Customizable: Rings can be tailored in dimension, material, structure, and precision grade for specific requirements.
• Superior Load Capacity: Double-row design increases contact area and load efficiency for heavy-duty and shock-load conditions.