Friction device for bearing module, has Belleville spring washer applying preset axial force to push friction ring stressed against ring, so that preset circumferential frictional torque is generated between inner and outer rings

摘要

The device has an outer ring (20) and an outer track (40) which are manufactured as a single part. A Belleville spring washer (28) applies a predetermined axial force permanently on a friction ring (26). The washer pushes the ring (26) which is stressed against a ring (24), so that a predetermined circumferential frictional torque is generated between the rings (24, 26) and outer and inner rings (20, 22). An independent claim is also included for a steering column comprising a module having a friction device.