A spherical roller bearing is a type of rolling-element bearing designed to accommodate heavy radial loads and moderate axial loads in both directions. It consists of an inner ring with two raceways, an outer ring with a spherical raceway, and symmetrical rollers that are guided by the inner ring raceway.

The rollers in a spherical roller bearing are barrel-shaped and arranged in a way that allows them to adjust to misalignment or shaft deflection. This capability makes spherical roller bearings suitable for applications where shafts may not be perfectly aligned or where there are dynamic loads or vibrations.

Spherical roller bearings are commonly used in various industries, including mining, construction, papermaking, and heavy machinery, where they provide reliable performance in demanding conditions. They are available in various designs, sizes, and configurations to meet specific application requirements.