A spherical roller bearing is a rolling-element bearing that permits rotation with low friction, and permits angular misalignment. Typically these bearings support a rotating shaft in the bore of the inner ring that may be misaligned in respect to the outer ring. The misalignment is possible due to the spherical internal shape of the outer ring and spherical rollers. Despite what their name may imply, spherical roller bearings are not truly spherical in shape. The rolling elements of spherical roller bearings are mainly cylindrical in shape, but have a (barrel like) profile that makes them appear like cylinders that have been slightly over-inflated

• Low Bearing Diameter –Spherical rollers require less bearing diameter than other types of ball bearings. For example, when using an 8 mm bearing, you will only need 4 mm between your inner and outer races.
• High Load Capacity – Spherical roller bearings are designed to handle higher load capacities than other bearings. They also offer superior performance under adverse operating conditions such as temperature variations or vibration.
• Continuous Alignment – Spherical roller bearings maintain their alignment throughout the life cycle of the bearing. Unlike tapered roller bearings which must be realigned after each use, spherical roller bearings can continue to operate without any maintenance
• Extremely Smooth Operation – Spherical roller bearings provide extremely smooth operations due to their unique design. They are designed to deliver utmost efficiency in any kind of machine or equipment to power smooth operation
• Easy Maintenance – Spherical roller bearings require little maintenance compared to other types of bearings. You just need to clean out the grease once every six months.