Double Row Cylindrical Roller Bearings

BMT Bearings manufactures Double Row Cylindrical Roller Bearings for OEM customers, bearing distributors, and industrial equipment manufacturers. Founded in 2004, BMT Bearings has developed bearing production capabilities covering non-standard bearing development, grinding, superfine processing, assembly, and inspection. With ISO9001 and IATF16949 certified quality systems and annual production capacity of 100 million bearing sets, BMT Bearings supplies customized bearing solutions for heavy industrial applications.

Advantages

Higher Radial Load Capacity

Double row cylindrical roller structures use two rows of rollers to increase the load-carrying area. Compared with single row designs, this structure improves radial load capacity and maintains better rigidity under heavy mechanical loads.

Key features:

· Supports high radial loads in heavy-duty equipment.

· Distributes load through two roller rows to reduce localized stress.

· Improves resistance to vibration and impact conditions.

· Suitable for continuous industrial operation.

Stable Operation Under High Loads

The optimized roller geometry and raceway contact structure reduce internal stress during operation. The design improves load distribution and helps maintain stable performance in equipment with frequent loading changes.

Performance characteristics:

· Reduced friction during rotation.

· Lower heat generation during continuous operation.

· Stable performance under high mechanical stress.

· Suitable for long working cycles.

Technical Parameters of Double Row Cylindrical Roller Bearings

BMT Bearings provides NJ and NU series bearing models. Specifications are based on standard production data.

Manufacturing and Quality Control

Automated Production Capability

BMT Bearings production includes grinding, superfine processing, cleaning, assembly, and inspection processes.

Production equipment includes:

· 80 grinding machines with a monthly capacity of up to 1,500,000 pcs.

· 48 superfine processing machines with a monthly capacity of up to 1,500,000 pcs.

· 48 automated assembly machines and 20 cleaning machines for bearing production.

Inspection Process

Each batch undergoes inspection before shipment.

Quality checks include:

· Roller roundness and hardness measurement.

· Raceway precision inspection.

· Noise and vibration testing.

· Final dimensional verification.

Applications

Spherical plain bearings and rod end bearings are used in industrial equipment requiring oscillating motion, alignment compensation, and high load capability, including:

· Metallurgy and steel processing equipment: Used in rolling mills, support mechanisms, and heavy-duty linkage systems.

· Mining and crushing machinery: Applied in equipment exposed to vibration, impact loads, and variable operating conditions.

· Large electric motors and drive systems: Used in mechanical connection points requiring load support and angular movement.

· Industrial gearboxes and transmission systems: Suitable for components requiring compensation of installation deviation and movement adjustment.

· Pumps and fluid handling equipment: Applied in linkage structures and rotating mechanisms under combined loads.

· Heavy-duty conveyor systems: Used in supporting structures and articulated connection points for continuous operation.

Customized Engineering Support

BMT Bearings provides OEM customization based on your drawings and operating conditions.

Available options include:

· Internal clearance adjustment for thermal expansion control.

· Cage design selection for different speed requirements.

· Lubrication solutions for temperature conditions.

· Surface treatment requirements.

· Installation and maintenance guidance.

The production process includes technical communication, drawing confirmation, sample approval, and mass production.

Why Choose BMT Bearings Bearings?

Manufacturing Experience and Quality System

BMT Bearings started bearing manufacturing in 2004 and developed non-standard bearing production capability in 2005. The company expanded its production facilities in Ningbo and established automated bearing production systems.

BMT Bearings manufacturing advantages:

· Annual production capacity of 100 million bearing sets in 2024.

· ISO9001 and IATF16949 certified quality management systems.

· Automated grinding and assembly production lines.

· Export experience covering Southeast Asia, Europe, America, the Middle East, and Africa.

· OEM and customized bearing supply capability.

Technical Support

BMT Bearings provides support throughout the purchasing process:

· Technical communication before production.

· Drawing and specification confirmation.

· Sample supply before bulk orders.

· Quality issue handling according to agreed requirements.

FAQ

What is the difference between double row and single row cylindrical roller bearings?

Double row designs contain two rows of rollers, providing higher radial load capacity and stronger rigidity for heavy-duty applications.

What industries use Double Row Cylindrical Roller Bearings?

They are commonly used in steel mills, mining machinery, electric motors, gearboxes, pumps, and industrial conveyors.

Can BMT Bearings customize bearing specifications?

Yes. BMT Bearings supports customization of clearance, cage structure, lubrication, and surface treatment according to application requirements.

What certifications does BMT Bearings have?

BMT Bearings production systems are certified with ISO9001 and IATF16949 quality management standards.

Does BMT Bearings support OEM and bulk orders?

Yes. BMT Bearings provides OEM production, customized bearing development, sample confirmation, and large-volume supply.

BMT Bearings Double Row Cylindrical Roller Bearings are produced with controlled manufacturing processes, verified dimensions, and tested performance parameters for industrial equipment applications.