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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 Thrust Bearing
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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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National Engineering Industries limited is releasing a RFQ for outbound FTL transportation requirement for their Railway & LDB customers. For the said purpose, our e-auction

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