Wheel hub with centring means
AssigneeAktiebolaget Skf
InventorsMarco Romanetto, Luca Donetti, Dario Ricci, Antonio Ruiu
Life of this patent
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Abstract
A wheel hub having an axis of symmetry and including a flange transverse to the axis of symmetry and provided with a plurality of fixing holes for attaching a wheel, a tubular body extending axially from the flange for supporting a rolling bearing, and a centering device arranged on a side of the flange opposite to that of the tubular body and in a position concentric with the axis of symmetry of the wheel hub, for retaining a wheel rim or a brake disc. The centering device being provided with a given number of flattened areas extending circumferentially and axially on a respective continuous tubular body projecting axially from the flange.
Claims6
A wheel hub having an axis (X) of symmetry and comprising:
- a flange transverse to the axis (X) of symmetry and provided with a plurality of fixing holes for attaching a wheel;
- a tubular body extending axially from the flange for supporting a rolling bearing;
- and
- a centring device arranged on a side of the flange opposite to that of the tubular body and in a position concentric with the axis of symmetry of the wheel hub, for retaining a wheel rim or a brake disc;
- wherein the centring device further comprises:
- a respective continuous tubular portion projecting axially from the flange, radially bounded by a cylindrical outer mounting surface, and provided with at least one flattened area extending circumferentially and axially on the outer mounting surface;
- a conical receiving portion tapered outwards and towards a free outer edge of the wheel hub;
- a concave transition portion axially between the tubular portion and the flange;
- and
- an intermediate cylindrical portion axially between the transition portion and the receiving portion.
A wheel hub unit for motor vehicles, comprising:
- a flanged inner ring or wheel hub,
- an outer ring fixed with respect to the flanged inner ring, and wherein
- the flanged inner ring or wheel hub has an axis (X) of symmetry and includes:
- a flange transverse to the axis (X) of symmetry and provided with a plurality of fixing holes for attaching a wheel;
- a tubular body extending axially from the flange for supporting a rolling bearing;
- and
- a centring device arranged on a side of the flange opposite to that of the tubular body and in a position concentric with the axis of symmetry of the wheel hub, for retaining a wheel rim or a brake disc,
- wherein the centring device further comprises:
- a respective continuous tubular portion projecting axially from the flange, radially bounded by a cylindrical outer mounting surface, and provided with at least one flattened area extending circumferentially and axially on the outer mounting surface;
- a conical receiving portion tapered outwards and towards a free outer edge of the wheel hub;
- a concave transition portion axially between the tubular portion and the flange;
- and
- an intermediate cylindrical portion axially between the transition portion and the receiving portion.
A centring device for retaining a wheel rim to a wheel hub, the centring device comprising:
- a continuous tubular portion projecting axially from a flange of the wheel hub, radially bounded by a cylindrical outer mounting surface, and provided with at least one flattened area extending circumferentially and axially on the outer mounting surface;
- a conical receiving portion tapered outwards and towards a free edge of the outer mounting surface;
- a concave transition portion axially between the tubular portion and the flange;
- and
- an intermediate cylindrical portion axially between the transition portion and the receiving portion.
Dependencies are inferred from the claim text.