NBC
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.

NBC

Cartridge Tapered Roller Bearings

What are Cartridge Tapered Roller Bearings?

A Cartridge Taper Roller Bearing (CRTB) is a vital part of a locomotive wagon. This bearing plays a significant role in Wagon Overhauling. CRTB is a component of the rolling stock and ensures the smooth and safe running of the locomotive. Therefore maintenance of this bearing plays a vital role in the upkeep and safety of the railways.

Features of Cartridge Tapered Roller Bearings

CTRB bearings require a lot of dedicated maintenance as it can be condemned if any cracks surface. Therefore these bearings are involved in a detailed periodic overhauling at different dedicated timelines. It has the following distinct features:

  • It is part of the rolling stock that ensures smooth and hassle-free movement
  • It ensures reduction in frictional losses due to the self lubricating feature of tapered roller bearings
  • It can bear high temperature peaks and high speeds making it reliable and effective as a wagon applicator bearing
  • Dismounting & cleaning alongside inspection & overhauling are what ensure the long life of these bearings and their ability to optimise the tedious nature of the application while monitoring for new developments, changes and wear from prompt action.

Advantages of Cartridge Tapered Roller Bearings

These bearings are unique in their application and utility. However, they still follow the same benefits as are available for all tapered roller bearings.

  • Low friction optimisation: The bearings are designed in such a manner that there is even distribution of surface level stress due to contact between various parts of the bearings.
  • Long bearing life: The raceway profiles of wagon bearings are designed to optimise the load distribution and sustain high temperature peaks at very high speeds along the contact surface. These bearings ensure reduced roller end stress and instances of misalignment.
  • High load & heat bearing capacity: The rollers are designed in a compact assembly, keeping dimensional and geometrical tolerances, which ensure equal distribution of surface and roller end stress. This helps optimal load distribution for heavy axial loads.

FAQ's

What is an axle box in a train?

An axle box is a component of a train’s wheelset that houses the roller bearings supporting the train’s wheels. It plays a critical role in distributing the load and ensuring smooth wheel rotation.

What is the function of the axle box?

The primary function of an axle box is to house the roller bearings that support the train’s wheels. It provides a secure and protective housing for these bearings, ensuring their proper operation and longevity.

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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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