Vehicle wheel axle shaft supporting mechanism, has groove and protrusion cooperating with external ring and support in external surface of external ring and internal surface of support

摘要

The mechanism has a shaft (29) mounted in a support (11) and rotating around an axis. A bearing (15) has an external ring (51) and internal rings. The external ring has an external surface (59) revolving around the axis opposite to an internal surface (57) of the support. Groove (61) and protrusion (63) cooperate with the external ring and support in the external surface of the external ring and internal surface.