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Office address
National Engineering Industries Ltd.
Khatipura Road Jaipur – 302006 Rajasthan, India
Phone Number

Toll Free: 1800 3000 6222
Telephone: +91 141 222 3221
Fax: +91 141 222 1926, 222 2259
CIN: U29130WB1946PLC013643

NBC Bearings

Founded in 1946, National Engineering Industries Ltd (NEI) is India’s leading bearings manufacturer and exporter, renowned for excellence in quality and delivery.

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Tapered Roller Bearings

What are Tapered Roller Bearings?

Taper Roller Bearings have a cup, cone and rollers which are tapered in shape. Rollers are restrained by a flange on the cone against which their large end slides. These bearings can take combined loads (radial and axial) simultaneously. Projection lines of the cup and cone raceways and rollers meet at a common point on the bearing axis. 

The axial load carrying capacity of bearings increases with the increasing contact angle. Bearings are separable so a cup can be separated from cone assembly. Hence both can be mounted separately. The raceway and rollers have crown profiles. Improved surface finish of flange enables cooler running by forming a full lubrication film with the roller head.      

Product Table

Products Boundary Dimensions Basic Load Ratings Axial Load Factors
    Dynamic Static    
  d [mm] D [mm] B [mm] C [kn] Co [kn] Y2 Y0
32315 75 160 55 388 452 1.76 0.97
32313 65 140 48 304 347 1.76 0.97
32311C 55 120 43 236 269 1.1 0.97
32311 55 120 43 239 274 1.74 0.96
32307 35 80 31 109 109 1.9 1.05
32205 25 52 18 46 45 1.67 0.92
32011 55 90 23 90 118 1.48 0.81
32006 30 55 17 43 48 1.39 0.77
32005 25 47 15 31 34 1.39 0.77
30311 55 120 29 177 184 1.74 0.96
30306 30 72 19 70 64 1.9 1.05
30305 25 62 17 52 46 2 1.1
30216 80 140 26 158 169 1.43 0.79
30215 75 130 25 156 175 1.38 0.76
30214 70 125 24 154 172 1.43 0.79
30213 65 120 23 140 151 1.48 0.81
32314 70 150 51 349 406 1.76 0.97
32310 50 110 40 124 126 1.74 0.96
32308 40 90 33 132 142 1.74 0.96
32226 130 230 64 594 820 1.36 0.75
32219 95 170 43 353 445 1.43 0.79
32010X1 50 80 20 71 90 1.43 0.79
32010 50 80 20 71 90 1.42 0.78
32007 35 62 18 48 54 1.32 0.73

Types of Tapered Roller Bearings

Single Row TRB
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Single Row Tapered Roller Bearing
Experience efficiency and reliability with our single row tapered roller bearings. Designed for precise motion control and reduced friction, these bearings ensure smooth operation in various industrial applications.
Double Row Tapered Roller Bearing
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Double Row Tapered Roller Bearing
Double your productivity and load capacity with our double row tapered roller bearings. Engineered for maximum durability and stability, these bearings excel in demanding environments.
Four Row TRB
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Four-Row Tapered Roller Bearings
Elevate your machinery's performance with our four-row tapered roller bearings. Built to withstand heavy radial and axial loads, these bearings ensure smooth operation and minimal maintenance.
TRB Thrust
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Tapered Roller Thrust Bearings
Optimize your machinery's performance with our tapered roller thrust bearings. Engineered for easy installation and maintenance, these bearings offer superior load-carrying capacity and precision motion control.
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Features of Tapered Roller Bearings

Depending upon the application requirements taper roller bearings can come in different variants such as double row, four row, etc. The primary features of taper roller bearings are:

  • This variant of roller bearings can be customized to match specific speed, weight, temperature, etc.
  • The cup is made of the outer ring of the bearing and cone assembly includes inner ring, rollers and cage.
  • The design effectively helps combine two bearings for a higher impact on productivity.
  • The separable components ensure a safe mounting and unmounting.
  • Works well in high speed and high temperature applications.

Advantages of Tapered Roller Bearings

  • A rigid bearing application can be achieved by combining two tapered roller bearings and applying a preload making these highly customisable.
  • Amps up performance, reduces friction as well as increases power density simultaneously in applications.
  • The raceways make for smooth operations in high speed operations leading to low friction, less noise and vibration.
  • It has tenacity to function even under difficult circumstances ensuring minimal downtime.
  • Manages heat well and works for a longer service time.
  • Low maintenance ensures that the resources are utilised for longer periods of time.

Applications of Tapered Roller Bearings

  • Effective for various rolling mill functions
  • Also useful in work roll operations as well as mining units.

FAQ's

What are tapered roller bearings used for?

Tapered roller bearings are commonly used in applications where radial and axial loads need to be supported, such as automotive wheel hubs, truck axles, industrial machinery, and agricultural equipment.

They are designed to handle both radial and thrust loads efficiently, making them suitable for heavy-duty applications where precise rotation and durability are essential.

What is a roller bearing used for?

Roller bearings, including tapered roller bearings, are used to support rotating shafts or axles while minimizing friction and allowing smooth movement.

They find widespread use in various machinery and equipment, including automotive transmissions, industrial gearboxes, electric motors, and conveyor systems, where radial or axial loads need to be supported.

What are the 4 basic parts of a tapered roller bearing?

The four basic parts of a tapered roller bearing include the inner ring, outer ring, tapered rollers, and cage or retainer.

  • The inner ring fits onto the shaft, while the outer ring provides housing and support for the bearing assembly.
  • Tapered rollers are positioned between the inner and outer rings and are guided by the cage or retainer, ensuring smooth rotation.

What is the angle of a tapered roller bearing?

The angle of a tapered roller bearing, also known as the taper angle or cone angle, is the angle formed between the axis of the bearing and the surface of the tapered rollers. This angle determines the ability of the bearing to handle radial and axial loads and affects its load-carrying capacity and performance.

What material is used for tapered roller bearings?

Tapered roller bearings are commonly made from high-quality alloy steels, such as chrome steel or bearing steel, which offer excellent strength, hardness, and fatigue resistance. These materials are chosen for their ability to withstand high loads and harsh operating conditions, ensuring reliable performance and longevity.

What shape is a taper roller bearing?

Tapered roller bearings have a unique shape characterized by tapered rollers arranged in a conical design. The inner and outer rings of the bearing assembly are also tapered to match the profile of the rollers, resulting in a compact and efficient design that can accommodate both radial and axial loads.

What are the parts of a tapered bearing?

The main parts of a tapered roller bearing include the inner ring, outer ring, tapered rollers, and cage or retainer. These components work together to support radial and axial loads while allowing smooth and precise rotation of the bearing assembly.

How are tapered roller bearings installed?

Tapered roller bearings are typically installed by pressing the bearing onto the shaft or into the housing using a hydraulic press or bearing installation tool.

Proper alignment is essential to prevent damage to the bearing or shaft during installation. Once installed, the bearing should be securely mounted and aligned to ensure optimal performance and longevit

How are tapered roller bearings measured?

Tapered roller bearings are measured based on their bore diameter, outer diameter, and width dimensions. These measurements are standardized according to international standards, to ensure compatibility and interchangeability between different bearing manufacturers.

Additionally, the taper angle or cone angle of the bearing is also specified to determine its load-carrying capacity and performance characteristics.

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    Leadership quotes

    Discovering unique solutions to reimagine and reinvent technology from a futuristic perspective is part of NEI’s best practices. Taking pride in unleashing the potential of innovative minds through informal education, we encourage our employees to share their exclusive ideas on our Idea portal, and we host the ‘Idea Factory’ contest for budding engineers currently studying in different universities—fostering independence of thought.
    Rohit Saboo
    Rohit SabooPresident & CEO
    Renu is a seasoned HR leader with a proven track record of strategic-business partnering, culture-building and organizational transformation in leading companies, spread across key sectors of Logistics, MEP Services, Healthcare, Engineering and Manufacturing. For her thought leadership, Renu got nominated in Asia’s 100 Power Leaders HR in 2022 and ET Prime HR Leader of the Year in 2023. An alumna of IIT Roorkee, Renu is passionate about people & culture, DEI, Future of work, and CSR. Renu joined NBC in 2024 to lead the HR function and drive growth, culture and leadership across all levels.
    Renu Bohra
    Finance these days is not about record keeping, it is more about working alongside the business and drive strategy. The world is changing so rapidly and we are going through unprecedented situations. The key is to keep on top of it and learn. It is all about evolving, innovating and adapting to succeed in the business world. At NEI, we ensure that we listen to our stakeholders and adjust ourselves to meet the evolving needs.
    Gourav Chaturvedi
    Gourav ChaturvediCFO
    As a leading exporter and manufacturer of bearings, with the objective of reducing energy consumption and improving energy efficiency to lower GHG emissions and Carbon Footprint, we take a leap forward in leveraging opportunities to expedite the transfer and diffusion of environment-friendly and clean-energy technology.
    Rohit Saboo
    Rohit SabooPresident & CEO
    Our commitment to growing our customer base across five continents is unwavering. Through our subsidiary Kinex in Europe, we enhance our proximity to international clients. We prioritize investments in product quality, our workforce, and cutting-edge technology. With well-defined growth strategies, we aim to continually expand our offerings to meet the dynamic needs of the industry and our valued customers.
    Rajesh Premchandran
    Rajesh PremchandranCSMO
    The imprint of transformational leadership in our day-to-day operations in offering flexible solutions even amidst crisis stands out as one of NEI’s core strengths. Putting employees first on our list of priorities and working in harmonious alliance adds to our spirit of maintaining a healthy and productive work environment. We rejoice at keeping up a vision that guides change through inspiration as we make our way through the extended new normal.
    Rohit Saboo
    Rohit SabooPresident & CEO
    We are delving our feet into the aerospace and defence industries. We consider this as an excellent time to enter this segment, given the present focus is on ‘Atmanirbhar Bharat’ which will lead to lower import dependency for the companies in these segments. We have been engaged with a number of aerospace businesses and have learnt that there is a lot of room for a local player to proactively work with them from concept to production.
    Dr. Lokesh Agrawal
    Dr. Lokesh AgrawalCTO
    Our nation is at the cusp of greatness , If India plays it's cards well , then this decade and the next one could belong to our nation , NEI leadership is fully geared to perform it's role in this transformation .
    Shailesh Patni
    Shailesh PatniCDS
    The ability to execute in rapidly evolving environment is set to become a decisive competitive differentiator for sustaining the profitable growth. To drive significant improvement in financial and operational metrics and to bring step change in productivity, flexibility and speed, rapid digitization through automation, advanced analytics, and machine learning is needed. Besides this, setting up resilient, risk-tolerant supply-chain and procurement structures along with re-skilling human capital with the skills and mindset the digital world requires, is the key to success
    Rajan Jain
    Rajan JainCOO
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    National Engineering Industries Ltd. Khatipura Road Jaipur - 302006 Rajasthan, India

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