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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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Four Row Cylindrical Roller Bearings

What are Four Row Cylindrical Roller Bearings?

Four row cylindrical roller bearings are designed to enhance the capabilities of cylindrical roller bearings. They usually come in two primary variants: one with a cylindrical or tapered bore and the other which is either opened or sealed. 

These are extensively used in specific industries where it helps the roll necks of rolling mill stands, and in the paper industry for calendars and roller presses. Since these are mounted using an interference fit, four-row cylindrical roller bearings are ideal for rolling mill applications. This interference fit at the roller neck ensures high speed seamless operations. These work well with bearings which provide axial loads since it can only accommodate radial loads.

Features of Four Row Cylindrical Roller Bearings

The features of a four row cylindrical roller bearing are similar to the double row variant. It only enhances the productivity and load bearing capacity of the bearing. 

  • Cylindrical roller bearings in which there are four flanges are capable of unidirectional load. 
  • The bearings are designed for very heavy load capacity due to the increased number of rollers. 
  • With optimised design, stress distribution is uniform and edge loading is minimised.
  • The separable parts are interchangeable for enhanced productivity. 

Advantages of Four Row Cylindrical Roller Bearings

Most of the advantages of a four row cylindrical roller bearings are similar to double row cylindrical roller bearings. It amplifies the major benefits, such as: 

  • It has an exceptionally high load carrying capacity compared to other cylindrical bearings. The extra rollers help carry extra load. 
  • Low friction smooth operations since the bearing also has a self lubricating feature where it develops a hydrodynamic film around an open flange design. 
  • The logarithmic multi-roller profile substantially lowers edge stresses at contact areas due to its sensitivity to misalignment and raceway shaft deflection.
  • It shows enhanced operational reliability owing to the hardened surface finish on contact surface
  • Separable and interchangeable components facilitate easy mounting, dismounting, and  maintenance
  • Despite the load these ensure the operations achieve a high speed rapid acceleration at peak loads.
  • The bearings are relatively large roll neck diameters against roll diameter.

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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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