MOST COMMON ROLLER BEARINGS

A Deep-groove ball bearing

This is the most widely used bearing, as it offers a cost-effective solution for a wide range of applications. The deep groove in the rings form the track for the ball elements and allows it to support radial and axial loads (to a degree) in both directions.

B Angular-contact ball bearing

Similar to the deepgroove ball bearing but the angular contact on the ball allows the bearing to support much higher axial loads, albeit only in one direction. A double angular ball bearing (back to back) can support high axial loads in both directions.

C Cylindrical roller bearing

For increased radial loads, a cylindrical roller bearing is recommended. Unfortunately, the speed rating is generally lower than with ball bearings and axial loads cannot be supported.

D Needle roller bearing

When there are space constraints, the rolling elements of a cylindrical bearing can be reduced in size, hence its name “needle”. Motorcycles tend to use needle bearings at the pivot point of the rear swingarm.

E Tapered roller bearing

To allow a cylindrical roller bearing to support axial loads, a contact angle is introduced between the rings and rolling elements. This type of bearing is commonly used in the wheelhub assemblies of vehicles.

F Spherical roller bearing

This type of bearing can support high radial loads and shaft bending as the inner ring twists slightly on the radius of the sphere.