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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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Spherical Roller Bearings

What are Spherical Roller Bearings?

Spherical Roller Bearings stand out as versatile workhorses in the bearings world, renowned for their ability to support high radial and axial loads while accommodating misalignment. Often referred to as SRBs, Spherical Roller Bearings are a type of rolling-element bearing with a barrel-shaped outer ring raceway, complemented by two rows of barrel-shaped rollers, and an inner ring with two raceways. This design helps eliminate misalignment and offers exceptional load-carrying capacity.

Products Table

Products Principal Dimensions Basic Load Ratings
    Dynamic Static
  d [mm] D [mm] B [mm] Cr [kn] Cor [kn]
22212 MB W33 60 110 28 132 156
22212K MB W33 60 110 28 132 156
22212 CA W33 60 110 28 135 157
22212K CA W33
 60 110 28 135 157
22212 CC W33 60 110 28 150 182
22212K CC W33 60 110 28 150 182
22216 MB W33
 80 140 33 174 234
22216K CC W33 80 140 33 175 234
22216K MB W33 80 140 33  175 234
22216 CC W33 80 140 33  175 234 
22216 CA W33 80 140 33  179 240
22216K CA W33 80 140 33  179 240
22218 MB W33 90 160 40  254 336
22218K MB W33 90 160 40  202 386

Types of Spherical Roller Bearings

It only has one prominent variant which is a Spherical Roller Thrust Bearing. 

Spherical Roller Bearings
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Spherical Roller Thrust Bearing
Unlock versatility and reliability with our spherical roller bearings. Engineered to accommodate misalignment and heavy loads, these bearings ensure smooth operation and minimal maintenance.

Features of Spherical Roller Bearings

Spherical Roller Bearings play a pivotal role across manufacturing, automotive, mining, and aerospace industries.

  • These bearings are built to handle high loads
  • The self aligning feature of the bearings helps the application readjust with minimal friction and therefore minimized misalignment.
  • These bearings have a good heat tolerance and can work even in harsh operating conditions.
  • The bearings are low friction hence have longer shelf life ensuring smooth and reliable machinery performance.

Benefits of Spherical Roller Bearings

  • High Load-Carrying Capacity: Spherical Roller Bearings can support both radial and axial loads in the harshest conditions. This makes the bearings suitable for a wide range of applications, like conveyor systems and crushers.
  • Misalignment Tolerance: The design is so engineered to allow for angular misalignment without compromising performance. This is an important feature especially for those applications with shaft deflection or mounting errors.
  • Durable Construction: Spherical Roller Bearings are built to withstand harsh conditions, including high temperatures, heavy shock loads, and contaminants. This makes the bearings reliable for the long run.
  • Long Service Life: Properly maintained SRBs have a long operational life. This directly implies reduced maintenance and replacement costs.
  • Reduced Friction: Thanks to this feature applications achieve energy efficiency and reduced operating temperatures.
  • Low maintenance: Regular Lubrication minimises friction and prevents premature wear. Regular inspection.helps identify the problems early and proper alignment prevents excessive stress on the component.

FAQ's

Why is it called a spherical roller bearing?

Spherical roller bearings derive their name from their design, which includes a spherical-shaped outer ring raceway. This unique construction allows the bearing to accommodate misalignment and axial loads in any direction, resembling the shape of a sphere.

Which one is better between roller bearing and spherical bearing?

The choice between a roller bearing and a spherical bearing depends on the specific requirements of the application.

  • Roller bearings, including cylindrical and needle roller bearings, are ideal for supporting radial loads in rotating machinery.
  • On the other hand, spherical roller bearings are preferred in applications where misalignment or shaft deflection is expected, as they can accommodate misalignment and axial loads in any direction.

Where Are Spherical Roller Bearings Used?

Spherical roller bearings find applications in various industries and machinery, including heavy-duty equipment such as mining, construction, and steel manufacturing. They are commonly used in applications with high radial and axial loads, as well as shaft deflection or misalignment, making them suitable for use in conveyor systems, crushers, vibrating screens, and industrial gearboxes.

Can Spherical Roller Bearing Take Axial Load?

Yes, spherical roller bearings are designed to handle both radial and axial loads. Their unique design, with a spherical-shaped outer ring raceway and barrel-shaped rollers, allows them to accommodate axial loads in addition to radial loads. This makes them suitable for applications where both types of loads are present, such as in heavy-duty machinery and industrial equipment.

How To Check Spherical Roller Bearing Clearance?

To check the clearance of a spherical roller bearing,

  • Use a feeler gauge or a dial indicator to measure the gap between the inner and outer rings.
  • Rotate the bearing by hand to ensure smooth movement while measuring the clearance at various points around the circumference.
  • Compare the measured clearance to the manufacturer’s specifications to ensure it falls within the acceptable range for the bearing.
  • Adjustments may be necessary if the clearance is outside the recommended tolerance limits.

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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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