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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

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
These bearing variants are optimised to support axial loads and are often used in applications where heavy thrust loads are prevalent, such as: automotive transmissions and heavy machinery equipment.

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

What are spherical bearings used for?

Spherical roller bearings are used in a wide range of applications, including conveyor systems, crushers, mining equipment, heavy machinery, automotive transmissions, and more, where they provide support for both radial and axial loads.

Why is it called a spherical roller bearing?

It is called a spherical roller bearing due to its unique construction, which includes a spherical-shaped outer ring raceway, barrel-shaped rollers, and an inner ring with two raceways.

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