Wheel hub unit with a central nut
AssigneeAktiebolaget Skf
InventorsFabio Falsetti, Michele Appendini, Maurizio Bertola, Alessandro Galeazzi
Life of this patent
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Abstract
A wheel hub unit having a central hub and a single central nut that includes respective shaped profiles radially oriented facing towards an axis (A) is provided. The wheel hub unit further includes an anti-unscrewing element interposed between the central hub and the single central nut to prevent accidental unscrewing of the single central nut. The anti-unscrewing element is provided with respective shaped profiles both radially oriented facing away from the axis (A) to engage with shaped profiles.
Claims6
A wheel hub unit comprising:
- a central hub provided with a first shaped profile and an external threaded profile;
- a single central nut provided with a second shaped profile and an internal threaded profile;
- and
- an anti-unscrewing element interposed between the central hub and a cover spanning across an axial end of the single central nut to prevent accidental unscrewing of the single central nut,
- wherein the single central nut is removably screwed on the external threaded profile of the central hub,
- wherein the first shaped profile and the second shaped profile are both radially oriented facing towards an axis (A) of the central hub, and in combination, the anti-unscrewing element is provided with a third shaped profile and a fourth shaped profile,
- wherein the third shaped profile is radially oriented facing away from the axis (A) of the central hub to engage with the first shaped profile,
- wherein the fourth shaped profile is radially oriented facing away from the axis (A) of the central hub to engage with the second shaped profile.
An anti-unscrewing device for wheel hub unit comprising:
- a wheel support that includes an external threaded profile;
- and
- an axial locking element that includes:
- a cover extending across an axial end of the axial locking element,
- an internal threaded profile,
- a first shaped profile radially orientated towards an axis (A) of the wheel support and made in the wheel support,
- a second shaped profile radially orientated towards an axis (A) of the wheel support and made in the locking element,
- a third shaped profile radially oriented facing away from an axis (A) of the wheel support to engage with the first shaped profile to make the wheel support and the locking element angularly integral with each other, and
- a fourth shaped profile radially oriented facing away from an axis (A) of the wheel support to engage with the second shaped profile,
- wherein the internal threaded profile is removeably screwed onto the external threaded profile,
- wherein the anti-unscrewing device is interposed between the wheel support and the cover to prevent accidental unscrewing of the axial locking element,
- wherein engagement between the third shaped profile and the first shaped profile as well as engagement between the fourth shaped profile and the second shaped profile make the wheel support and the locking element angularly integral with each other.
Dependencies are inferred from the claim text.