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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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Matched Tapered Roller Bearings

Matched Tapered Roller Bearings: Precision in Motion

Tapered roller bearings are indispensable components in various industries, contributing to the seamless rotation of wheels, gears, and other mechanical elements. Among these, matched tapered roller bearings stand out for their specialised design and precise engineering, offering enhanced performance in critical applications.

What are Matched Tapered Roller Bearings?

Matched tapered roller bearings are a sophisticated subtype of tapered roller bearings, known for their meticulous pairing to ensure precise alignment and load distribution. This matching process involves selecting bearings with identical characteristics, such as the same inner and outer diameters, angles, and overall dimensions. The goal is to create a harmonious partnership between the bearings, promoting uniform load sharing and preventing uneven wear.

Features of Matched Tapered Roller Bearings

  • The inner and outer rings with angled raceways and contact angle, enables transfer of forces
  • When subjected to axial loads these bearing pairs also generate radial loads and vice versa
  • Due to their combined impact, these bearing pairs are well suited for moderate to high speed applications
  • Single row matched tapered roller bearings are also convenient to take apart adding to the ease of operation as per customised needs.

Advantages of Matched Tapered Roller Bearings

  • Precision and Accuracy: The meticulous matching process ensures uniform load distribution, reducing the risk of localised stress and wear. This precision contributes to extended bearing life and enhanced equipment reliability.
  • Impressive Load Carrying Capacity: By distributing loads evenly across the matched set, these bearings can handle higher radial and axial loads compared to individual, unmatched bearings of the same size. The axial load carrying capacity of TRB increases as the contact angle grows larger. The magnitude of the contact angle typically ranges between 10 to 30 degrees, correlates with the calculation factor e. The greater the value of e, the higher the angle.
  • Superior Rigidity: Depending on the design NBC matched bearings can establish a robust bearing arrangement. This also helps amplify the bi-directional axial support and align the shaft and clearances accordingly.
  • Reduced Vibration and Noise: The balanced load distribution minimises vibration and noise during operation, resulting in smoother and quieter performance. This is particularly crucial in applications where noise is a significant consideration.

Structure and Components

  • Inner and Outer Rings: Each ring is carefully crafted to exact specifications. The inner ring fits onto the rotating shaft, while the outer ring forms the outer structure of the bearing.
  • Rolling Elements: Tapered rollers facilitate smooth and controlled rotational motion. These rollers are then angled, allowing them to support both radial and axial loads.
  • Cage: A cage, often made of steel or other durable materials, surrounds the rollers, maintaining consistent spacing and preventing direct contact between them. This design minimises friction and heat generation.

Applications Across Industries

  • Automotive Sector: Matched tapered roller bearings find extensive use in automotive applications, particularly in wheel hubs, transmissions, and differentials.
  • Aerospace Industry: In aerospace applications, where precision and reliability are paramount, matched tapered roller bearings are employed in critical components such as landing gear systems and aero-engine assemblies.
  • Industrial Machinery: Various industrial machinery, such as conveyors, machine tools, and gearboxes, benefit from the performance advantages of matched tapered roller bearings.

Performance Considerations

  • Preload Adjustment: Matched sets allow for precise preload adjustment, a crucial factor in controlling bearing clearance and optimising stiffness.
  • Temperature Stability: The matched design promotes even load distribution, reducing localised friction and heat generation. This contributes to improved temperature stability in high-speed and high-temperature applications.

Installation and Maintenance

  • Preload Adjustment: Matched sets allow for precise preload adjustment, a crucial factor in controlling bearing clearance and optimising stiffness.
  • Temperature Stability: The matched design promotes even load distribution, reducing localised friction and heat generation. This contributes to improved temperature stability in high-speed and high-temperature applications.

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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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