LIGHTWEIGHT HUB UNIT WITH INTEGRATED BEARING RINGS AND PROCESSES FOR ITS MANUFACTURE

摘要

A hub unit includes a hub of light material forming a cylindrical portion, a flange and a radial recess having a surface facing the flange, and two bearing rings axially aligned around the cylindrical portion of the hub; a sleeve locking device is radially interposed between the cylindrical portion of the hub and the bearing rings, and comprises a retaining portion engaged in the radial recess of the hub, a terminal edge which preloads the bearing rings, and one or two cuts extending in an axial direction.

主权项

1. A hub unit with integrated bearing rings, the unit comprising:
a hub, made of a first material and forming, in a single piece:
a cylindrical portion extending in an axial direction,a flange extending in a radially outwardly direction from an axially outer end of the cylindrical portion, and at least one radial recess having a surface facing the flange; a first and a second bearing ring, made of a second material different from the first material, the bearing rings being mounted axially aligned around the cylindrical portion, wherein the second bearing ring is axially inner with respect to the first bearing ring and provides an end face facing an axially inner direction; a sleeve locking device, radially interposed between the cylindrical portion of the hub and said bearing rings, the sleeve locking device providing:
at least one retaining portion projecting in a radially inward direction and engaged in the radial recess of the hub,an axially inner end edge, plastically deformed in a radially outer direction against the end face of the second bearing ring, andat least one cut extending axially along the locking sleeve device.