Spherical roller bearings

What is a spherical roller bearing?

A spherical roller bearing is a type of rolling-element bearing that has two rows of rollers, a common sphered outer ring raceway, and two inner ring raceways that are inclined at an angle to the bearing axis. This design allows them to accommodate misalignment and handle heavy radial and axial loads.

What are the main advantages of spherical roller bearings?

Their primary advantages include excellent load-carrying capacity for both radial and axial loads, the ability to accommodate shaft misalignment, and self-aligning capabilities. They are also known for their durability and long service life in demanding applications.

Where are spherical roller bearings typically used?

They are commonly found in heavy-duty industrial applications such as mining equipment, construction machinery, wind turbines, gearboxes, pulp and paper machinery, and large electric motors where heavy loads and potential misalignment are present.

What types of loads can spherical roller bearings handle?

Spherical roller bearings are designed to handle very high radial loads and significant axial loads in both directions. Their symmetrical roller design allows for efficient load distribution.

How do spherical roller bearings accommodate misalignment?

The sphered raceway in the outer ring allows the inner ring, rollers, and cage assembly to tilt relative to the outer ring. This tilting action compensates for shaft deflection or mounting errors, preventing premature bearing failure.