Wheel bearing unit for a motor vehicle as well as method for producing a wheel bearing unit
US-2021138834-A1 · May 13, 2021 · US
Wheel bearing unit for a motor vehicle and motor vehicle
US12304237B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12304237-B2 |
| Application number | US-202318362104-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 31, 2023 |
| Priority date | Aug 25, 2022 |
| Publication date | May 20, 2025 |
| Grant date | May 20, 2025 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A wheel bearing unit for a motor vehicle, comprising a wheel hub, a wheel bearing housing and a rolling bearing by which the wheel hub is mounted rotatably in relation to the wheel bearing housing. The rolling bearing has at least one row of rolling elements which are guided on the wheel hub side in a bearing inner ring which is designed as a separate component in relation to the wheel hub and which is fixedly connected to the wheel hub. The wheel hub has a through opening with an inner toothing, via which through opening the wheel hub can be connected in a non-rotational manner to a drive journal which is provided with an external toothing.
First claim
Opening claim text (preview).
The invention claimed is: 1. A wheel bearing unit for a motor vehicle, comprising a wheel hub, a wheel bearing housing and a rolling bearing by means of which the wheel hub is mounted rotatably in relation to the wheel bearing housing, wherein the rolling bearing has at least one row of rolling elements which are guided on the wheel hub side in a bearing inner ring which is designed as a separate component in relation to the wheel hub and which is fixedly connected to the wheel hub, wherein the wheel hub has a through opening with an inner toothing, via which through opening the wheel hub is connected in a non-rotational manner to a drive journal which is provided with an external toothing, wherein the inner toothing is formed comprising a first toothing portion, a second toothing portion and a toothless portion which, when viewed in the axial direction, lies between the first and second toothing portions and separates the first and second toothing portions from one another, wherein the toothless portion of the inner toothing, when viewed in the axial direction, is arranged in such a way that the toothless portion is positioned radially opposite the end face of the bearing inner ring on the bearing inner side. 2. A wheel bearing unit according to claim 1 , wherein relative to a root diameter of the first and second toothing portions of the inner toothing, the toothless portion of the inner toothing has a diameter for which the following applies: 1 ≤ diameter ( D A b ) of the toothless portion root diameter ( D F ) ≤ 1 , 2. 3. The wheel bearing unit according to claim 2 , wherein the intermediate region diameter is greater than or equal to the diameter of the toothless portion of the inner toothing. 4. The wheel bearing unit according to claim 2 , wherein relative to the root diameter, the fastening region has a fastening region diameter for which the following applies: fastening region diameter ( D B ) root diameter ( D F ) . ≥ 1 , 2 5. The wheel bearing unit according to claim 2 characterized in that the toothless portion of the inner toothing is formed like an undercut. 6. The wheel bearing unit according to claim 2 , wherein the through opening of the wheel hub comprises a support region having the inner toothing, a fastening region having a bearing shoulder, and an intermediate region arranged between the support and fastening regions, when viewed in the axial direction, and, relative to the root diameter, the intermediate region has an intermediate region diameter for which the following applies: intermediate region diameter ( D Z ) root diameter ( D F ) . > 1 7. The wheel bearing unit according to claim 1 , wherein the through opening of the wheel hub comprises a support region having the inner toothing, a fastening region having a bearing shoulder, and an intermediate region arranged between the support and fastening regions, when viewed in the axial direction, and, relative to the root diameter, the intermediate region has an intermediate region diameter for which the following applies: intermediate region diameter ( D Z ) root diameter ( D F ) . > 1
Assignees
Inventors
Classifications
the bore of the inner ring being of special non-cylindrical shape which co-operates with a complementary shape on the shaft, e.g. teeth, polygonal sections · CPC title
with splines, serrations or similar profiles to prevent movement between joined parts · CPC title
with three raceways provided integrally on parts other than race rings, e.g. third generation hubs · CPC title
Wheel hubs or castors · CPC title
- B60B27/0026Primary
of the radial type, e.g. splined key · CPC title
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- What does patent US12304237B2 cover?
- A wheel bearing unit for a motor vehicle, comprising a wheel hub, a wheel bearing housing and a rolling bearing by which the wheel hub is mounted rotatably in relation to the wheel bearing housing. The rolling bearing has at least one row of rolling elements which are guided on the wheel hub side in a bearing inner ring which is designed as a separate component in relation to the wheel hub and …
- Who is the assignee on this patent?
- Audi Ag
- What technology area does this patent fall under?
- Primary CPC classification B60B27/0026. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 20 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).