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Double Row Tapered Roller Bearing
  • Double Row Tapered Roller BearingDouble Row Tapered Roller Bearing
  • Double Row Tapered Roller BearingDouble Row Tapered Roller Bearing
  • Double Row Tapered Roller BearingDouble Row Tapered Roller Bearing
  • Double Row Tapered Roller BearingDouble Row Tapered Roller Bearing

Double Row Tapered Roller Bearing

Double row tapered roller bearings are designed for applications where a single bearing must simultaneously withstand high radial loads and axial loads in both directions. This structure is widely used in heavy machinery and transmission systems where shaft rigidity and alignment stability directly affect equipment life. BMT Bearings has been manufacturing tapered roller bearings since 2004, supplying industrial customers in automotive, mining, metallurgy, and heavy equipment industries.

As a professional bearing manufacturer in China, we understand that customers purchasing industrial bearings care most about stability, service life, precision, and long-term operating costs. At BMT Bearings, we have spent years improving our production process and quality control system to ensure every Double Row Tapered Roller Bearing delivers dependable performance under demanding working conditions.

Our bearings are widely used in automotive systems, gearboxes, rolling mills, mining equipment, construction machinery, agricultural machinery, heavy-duty transmissions, and industrial drive systems where high radial and axial loads must be handled simultaneously.




Double Row Tapered Roller BearingDouble Row Tapered Roller Bearing


Technical Parameters

Bearing Model Dimensions (mm) Basic Load Ratings (kN) Limiting Speed (rpm) Weight Type & Features
d D B T Cr Cor Grease Oil (kg)
TDO (Two-Row Double Outer Ring) Type
478/472 76.2 161.925 49.212 82.931 365 530 2000 2800 6.8 TDO, Requires spacer
478/472A 76.2 161.925 49.212 82.931 365 530 2000 2800 6.8 TDO, Requires spacer
486/472 109.538 166.688 53.975 95.25 405 610 1800 2600 8.2 TDO, Requires spacer
522/560X 132.538 197.644 57.15 104.775 550 850 1600 2200 12.5 TDO, Requires spacer
531/532 139.992 233.375 60.325 123.825 670 1080 1400 1900 17.5 TDO, Requires spacer
TNA (Two-Row Double Inner Ring) Type
447/432 76.2 161.925 49.212 82.931 365 530 2000 2800 6.8 TNA, Requires spacer
447/432A 76.2 161.925 49.212 82.931 365 530 2000 2800 6.8 TNA, Requires spacer
455/432 109.538 166.688 53.975 95.25 405 610 1800 2600 8.2 TNA, Requires spacer
TS (Two-Row Single Outer Ring) Type
352905 25 52 33 33 68.5 86.5 5000 6700 0.45 TS, Compact
352906 30 55 34 34 72.5 95 4800 6300 0.52 TS, Compact
352907 35 62 36 36 80 112 4300 5600 0.75 TS, General purpose
352908 40 68 38 38 87.5 130 4000 5300 0.95 TS, General purpose
352909 45 75 40 40 95 150 3800 5000 1.25 TS, General purpose
352910 50 80 40 40 102 165 3600 4800 1.35 TS, General purpose
352911 55 90 46 46 125 210 3400 4500 2.1 TS, High capacity
352912 60 95 46 46 130 220 3200 4300 2.25 TS, High capacity
352913 65 100 46 46 135 230 3000 4000 2.4 TS, High capacity
352914 70 110 54 54 175 300 2800 3800 3.5 TS, Heavy duty
352915 75 115 54 54 180 310 2600 3600 3.7 TS, Heavy duty
352916 80 125 60 60 210 370 2400 3400 5 TS, Heavy duty
352917 85 130 60 60 215 380 2200 3200 5.2 TS, Heavy duty
352918 90 140 67 67 265 480 2000 3000 7.2 TS, Extra heavy duty
352920 100 150 67 67 275 500 1800 2600 7.5 TS, Extra heavy duty
TDIT (Two-Row Double Inner Ring - Tapered Bore)
31309 45 100 55 55 180 255 3000 4000 2.1 TDIT, Tapered bore 1:12
31311 55 120 65 65 245 355 2600 3600 3.8 TDIT, Tapered bore 1:12
31313 65 140 73 73 305 450 2200 3200 5.9 TDIT, Tapered bore 1:12
31315 75 160 80 80 365 550 2000 2800 8.6 TDIT, Tapered bore 1:12
31317 85 180 85 85 425 650 1800 2600 11.5 TDIT, Tapered bore 1:12
31319 95 200 90 90 480 750 1700 2400 15 TDIT, Tapered bore 1:12
31321 105 225 98 98 570 900 1500 2200 20.5 TDIT, Tapered bore 1:12

Why Choose BMT Bearings

Founded in 2004, BMT Bearings has developed from a local bearing manufacturer into a globally exported bearing enterprise with annual production reaching 100 million pieces. Our company has continuously invested in automatic grinding lines, assembly systems, and precision inspection equipment to maintain consistent product quality.

We are certified under ISO9001 and IATF 16949 quality management systems, which allows us to meet strict industrial and automotive bearing standards.

What makes our Double Row Tapered Roller Bearing different is not only the product itself, but also the manufacturing experience behind it.

Our Advantages

· More than 20 years of bearing manufacturing experience

· Stable EMQ quality production system

· Automatic grinding and assembly lines

· Strict dimensional and vibration inspection

· OEM and customized bearing solutions

· Fast response for global buyers

· Long-term export experience worldwide

Product Features

High Load Carrying Capacity

The double row design allows the bearing to support combined radial and axial loads in both directions. This structure improves operational stability and is ideal for heavy-load applications.

Improved Operational Stability

Compared with single row bearings, the double row structure provides better rigidity and shaft positioning performance, reducing vibration during operation.

Long Service Life

We use high-quality bearing steel, optimized heat treatment processes, and precision grinding technology to improve wear resistance and extend bearing life.

Excellent Rotational Accuracy

Our production system ensures stable dimensional tolerances and smooth rotation performance, helping equipment maintain reliable operation even under continuous heavy-duty conditions.

Reduced Maintenance Cost

A reliable Double Row Tapered Roller Bearing can significantly reduce downtime and replacement frequency, helping customers lower long-term maintenance expenses.

 

Real Manufacturing Experience You Can Trust

At BMT Bearings, we do not rely on theoretical descriptions alone. Every production batch goes through strict testing procedures including dimensional inspection, noise testing, rotation accuracy checks, and surface quality control.

Our engineering team works closely with customers to recommend suitable bearing models based on actual working conditions such as load, speed, temperature, lubrication, and installation environment.

Many of our long-term customers use our Double Row Tapered Roller Bearing products in continuous industrial production lines where stable performance is essential.

 

Applications

Our Double Row Tapered Roller Bearing products are commonly used in:

· Automotive wheel hubs

· Industrial gearboxes

· Mining machinery

· Rolling mills

· Construction equipment

· Agricultural machinery

· Conveyor systems

· Heavy-duty transmission equipment

Different industries require different bearing performance standards. We support customized solutions according to customer drawings, samples, and technical requirements.

 

OEM and Custom Bearing Service

As an experienced bearing supplier, BMT Bearings supports OEM and customized manufacturing services.

We can provide:

· Customized dimensions

· Laser logo marking

· Special packaging

· Different clearance requirements

· Customized materials

· High-speed or heavy-load solutions

Our export team understands international procurement requirements and provides efficient communication during the entire order process.

 

Strict Quality Control System

Quality consistency is the foundation of long-term cooperation.

From raw material selection to finished product packaging, BMT Bearings follows standardized inspection procedures to ensure stable quality in every shipment.

Our factory adopts advanced inspection equipment to monitor:

· Bearing hardness

· Surface roughness

· Rotational noise

· Radial clearance

· Dimensional precision

· Concentricity

This allows us to provide bearings suitable for demanding industrial applications worldwide.

FAQ

What is a Double Row Tapered Roller Bearing used for?

A Double Row Tapered Roller Bearing is mainly used in applications requiring high radial load capacity and axial load support in two directions. It is commonly found in automotive systems, industrial machinery, mining equipment, and rolling mills.

Why choose double row tapered roller bearings instead of single row bearings?

Double row bearings provide higher rigidity, improved load distribution, and better shaft positioning performance. They are suitable for heavy-duty and high-impact working conditions.

Can BMT Bearings provide OEM customization?

Yes. We support OEM and customized bearing production according to drawings, samples, dimensions, and special technical requirements.

How do you ensure product quality?

We use automatic production lines and strict inspection systems throughout manufacturing. Every bearing undergoes dimensional, vibration, and rotational testing before shipment.

What industries use your bearings most frequently?

Our customers mainly come from automotive manufacturing, industrial machinery, agricultural equipment, electric motors, pumps, mining equipment, and transmission systems.

Do you support global export business?

Yes. BMT Bearings has extensive export experience and supplies bearing products to customers in many international markets.

 iatf16949iso90012

Work With BMT Bearings

Choosing the right bearing supplier is not only about price. Stable quality, technical support, delivery reliability, and long-term cooperation are equally important.

At BMT Bearings, we combine manufacturing experience, strict quality standards, and practical industry knowledge to provide dependable Double Row Tapered Roller Bearing solutions for global customers.

We welcome distributors, wholesalers, equipment manufacturers, and industrial buyers to contact us for cooperation.

 

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