Fersa markets what are usually known as Needle Crowns. They are made up of a self-rolling element with minimal radial thickness and a higher capacity for load and rigidity. They are used when the axis and the housing of the application can be used as rolling tracks.

The operational radial set is determined by the tolerances in these rolling tracks.

These bearings can withstand higher radial loads but no kind of axial loads, as well as being able to work at high speeds.

There are executions in one and two rows.