Wheel bearing arrangement for a motor vehicle

Patent metadata

Field	Value
Publication number	US-11117421-B2
Application number	US-201815919597-A
Country	US
Kind code	B2
Filing date	Mar 13, 2018
Priority date	Mar 14, 2017
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

A wheel bearing arrangement for a motor vehicle with a wheel hub and a wheel bearing for the rotatable bearing of the wheel hub at a wheel mount. The wheel bearing has an outer ring and an inner ring, which is rotatable with respect to the outer ring around an axis of rotation and is connected to the wheel hub. A wheel flange extends from the wheel hub and, as viewed in the axial direction, has a brake disk mount, which is open in the direction facing away from the outer ring and which, as viewed in longitudinal section with respect to the axis of rotation, is formed by a recess of the wheel flange, and has a support surface for a brake disk.

First claim

The invention claimed is:

1. A wheel bearing arrangement for a motor vehicle, comprising:
a wheel hub and a wheel bearing for the rotatable bearing of the wheel hub at a wheel mount, wherein the wheel bearing has an outer ring and an inner ring, which is rotatable with respect to the outer ring around an axis of rotation and is connected to the wheel hub, wherein a wheel flange extends from the wheel hub and, as viewed in the axial direction, has a brake disk mount, which is open in the direction facing away from the outer ring and, as viewed in the longitudinal section with respect to the axis of rotation, is formed by a recess of the wheel flange, and has a support surface for a brake disk, wherein in the wheel flange on its side facing the outer ring in the axial direction, a seal mount space is formed, which, in the axial direction, has a seal mount width (B D ) which is greater than or equal to 2.0 mm, wherein the recess, as viewed in longitudinal section, has a cranking width (B K ) which is greater than or equal to 5.0 mm, wherein by way of the recess, an outer circumferential surface of the wheel flange forms a brake disk seat, which, with respect to the axis of rotation, has a brake disk seat diameter (D BI ), wherein the outer ring has an outer ring width (B RL ), and wherein the ratio of the brake disk seat diameter (D BI ) to the outer ring width (B RL ) is greater than or equal to 1.9.

2. The wheel bearing arrangement according to claim 1 , wherein at the wheel hub, a universal joint shaft flange is fastened, which has a flange front-side surface for resting against a wheel hub front-side surface of the wheel hub, wherein, between the flange front-side surface and an articulation point of the universal joint shaft flange in the axial direction, a universal joint shaft flange distance (A GW ) is present and/or
between the inner-lying end of the wheel hub of the vehicle, in particular between the wheel hub front-side surface, and the support surface in the axial direction, a standard bearing width (B BS ) is present
and/or wherein
at the seal mount space, there is an adjoining air gap, which, as viewed in the longitudinal section, has an air gap width (B VD ) and is present between the wheel flange and the outer ring in the axial direction extending from the seal mount space continuously outward in the radial direction, and/or wherein
the universal joint shaft flange has, on its outer side, a universal joint shaft flange diameter (D GA ) and/or wherein
the universal joint shaft flange has a spherical circle diameter (D GW ), and/or wherein
the outer ring has a wheel bearing outer diameter (D RA ), and/or wherein
roller elements of the wheel bearing are arranged with their respective center of rotation on a pitch circle with a pitch circle diameter (D TK ), and/or wherein
the wheel hub in a flange mount for the universal joint shaft flange has a toothing with a toothing diameter (D VZ ), and/or wherein
the seal mount space has a seal mount spatial height (H D ), and/or wherein
the outer circumferential surface is spaced apart from an inner circumferential surface, which delimits the seal mount space outward in the radial direction, by a flange cross section (Q F ), and/or wherein
at the wheel flange at least one fastening mount is arranged on a wheel bolt circle with a wheel bolt circle diameter (D LK ).

3. The wheel bearing arrangement according to claim 2 , wherein
the ratio of the universal joint shaft flange distance (A GW ) to the standard bearing width (B BS ) is greater than or equal to 0.5, and/or
the ratio of the sum of the universal joint shaft flange distance (A GW ) and the standard bearing width (B BS ) to the wheel bolt circle diameter (D LK ) is less than or equal to 1.0, and/or
the ratio of the sum of the universal joint shaft flange distance (A GW ) and the standard bearing width (B BS ) to the toothing diameter (D VZ ) is greater than or equal to 2.5, and/or
the ratio of the sum of the universal joint shaft flange distance (A GW ) and the standard bearing width (B BS ) to the pitch circle diameter (D TK ) is greater than or equal to 1.2, and/or
the ratio of the universal joint shaft flange distance (A GW ) to the pitch circle diameter (D TK ) is less than or equal to 0.6, and/or
the ratio of the brake disk seat diameter (D BI ) to the pitch circle diameter (D TK ) is greater than or equal to 1.2, and/or
the ratio of the brake disk seat diameter (D BI ) to the toothing diameter (D VZ ) is greater than or equal to 2.5, and/or
the ratio of the universal joint shaft flange diameter (D GA ) to the wheel bearing outer diameter (D RA ) is greater than or equal to 0.8, and/or
the ratio of the universal joint shaft flange diameter (D GA ) to the pitch circle diameter (D TK ) is greater than or equal to 1.2, and/or
the ratio of the spherical circle diameter (D GW ) to the pitch circle diameter (D TK ) is greater than or equal to 0.7, and/or
the ratio of the spherical circle diameter (D GW ) to the toothing diameter (D VZ ) is greater than or equal to 1.8, and/or
the ratio of the wheel bolt circle diameter (D LK ) to the outer ring width (B RL ) is greater than or equal to 2.0, and/or
wherein the ratio of the wheel bolt circle diameter (D LK ) to the pitch circle diameter (D TK ) is greater than or equal to 1.4, and/or
the ratio of the wheel bolt circle diameter (D LK ) to the toothing circle diameter (D VZ ) is greater than or equal to 3.3, and/or
the air gap width (B VD ) is less than or equal to 2.0 mm, and/or
the flange cross section (Q F ) is greater than or equal to 6.0 mm.

4. The wheel bearing arrangement according to claim 3 , wherein the inner circumferential surface and the outer circumferential surface are parallel to each other.

5. The wheel bearing arrangement according to claim 3 , wherein the outer circumferential surface is at an angle with respect to the axis of rotation.

6. The wheel bearing arrangement according to claim 3 , wherein the seal mount space is delimited by the inner circumferential surface, a side surface, and a bottom surface, and has an open edge in the direction of the outer ring.

7. The wheel bearing arrangement according to claim 3 , wherein the side surface lies in a plane that is perpendicular to the axis of rotation.

8. The wheel bearing arrangement according to claim 3 , wherein the side surface and the bottom surface, as viewed in the longitudinal section, are connected to each other via a radius.

9. The wheel bearing arrangement according to claim 3 , wherein a seal, which is arranged in the seal mount space, has, as viewed in the longitudinal section, a first sealing lip, which rests against a side surface, a second sealing lip, which rests against the bottom surface, and a clamp fastening, which rests against the outer ring.

10. The wheel bearing arrangement according to claim 3 , wherein the wheel bearing is designed as a multi-row roller bearing.

Assignees

• Audi Ag

Inventors

• Albl Johannes
• Frisch Michael

Classifications

• F16C33/581

  integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels · CPC title

• F16C19/522 Primary

  related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload · CPC title

• B60B27/0036

  comprising homokinetic joints · CPC title

• B60B27/06 Primary

  adapted to be fixed on axle · CPC title

• B60B35/128

  of the homokinetic or constant velocity type · CPC title