Bearing arrangement of a wheel hub of a motor vehicle drivable by a rotating joint

• US 8,256,967 B2
• Filed: 06/28/2007
• Issued: 09/04/2012
• Est. Priority Date: 07/01/2006
• Status: Expired due to Fees

• Current Assignee: Schaeffler Technologies AG & Co.KG (INA-Holding Schaeffler GmbH & Co. KG)
• Original Assignee: Schaeffler Technologies AG & Co.KG (INA-Holding Schaeffler GmbH & Co. KG)
• Inventors: Langer, Roland, Niebling, Peter, Masur, Ernst
• Primary Examiner(s): Charles, Marcus
• Application Number:
  US12/304,374
• Publication Number:
  US 20090202186A1
• Time in Patent Office: 1,895 Days
• Field of Search: 384/537, 384/544, 384/559, 384/586, 384/589, 384/598
• US Class Current: 384/544
• CPC Class Codes: B60B 27/0005 with ball bearings
• CPC Class Codes: B60B 27/0031 of the axial type, e.g. front teeth
• CPC Class Codes: B60B 27/0042 characterised by the fixation of the homokinetic joint to the hub
• CPC Class Codes: B60B 27/0094 one or more of the bearing races are formed by the hub
• CPC Class Codes: F16C 19/185 with two raceways provided integrally on a part other than a race ring, e.g. a shaft or housing
• CPC Class Codes: F16C 19/186 with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
• CPC Class Codes: F16C 2326/02 Wheel hubs or castors in general B60B
• CPC Class Codes: F16C 33/60 divided or split, e.g. comprising two juxtaposed rings
• CPC Class Codes: F16C 35/063 Fixing them on the shaft with interposition of an element F16C35/07

Abstract

The bearing arrangement for a connection of a wheel hub to a rotating joint. A face of an axle stub of the wheel huh with a spur gearing element is non-rotatably connected to a corresponding spur gearing element of a joint body of the rotating joint. The spur gearing elements are disposed at least partially radially and axially beneath the roller bearing. The inner bearing ring is connected to a means for the axial tolerance compensation between the inner hearing ring and the counter-surface of the joint body.

Claims

1. A bearing arrangement of a wheel hub of a motor vehicle drivable by a rotating joint, wherein the wheel hub, which is connected to a wheel flange, and the rotating joint, which is connected to a drive shaft, are non-rotatably connected to each other by means of a serration, comprising:

a double-row roller bearing which is mounted on the wheel hub and has at least one separate bearing inner ring, an end face of which protrudes axially beyond the end of an axle stub of the wheel hub, wherein the roller bearing is axially prestressed via a counter-surface of a joint body of the rotating joint, the surface acting on the end face of the separate bearing inner ring, wherein an end face of the axle stub of the wheel hub comprises an end serration which can be non-rotatably connected to a corresponding end serration of the joint body of the rotating joint, wherein the end serrations are arranged at least partially radially and axially beneath the roller bearing, and in that the bearing inner ring is connected to a means for axial tolerance compensation between the bearing inner ring and the counter-surface of the joint body.

2. The bearing arrangement as claimed in claim 1, wherein the means for axial tolerance compensation between the bearing inner ring and the counter-surface of the joint body is an axial undercut in the form of an annular groove in the end face of the joint body.

3. The bearing arrangement as claimed in claim 1, wherein the means for axial tolerance compensation is a spring element which is arranged between the counter-surface of the joint body and the end face of the bearing inner ring.

4. The bearing arrangement as claimed in claim 3, wherein the spring element is a shaft washer, an omega bush or a plate spring.

5. The bearing arrangement as claimed in claim 1, wherein the means for axial tolerance compensation is formed by an undercut which is formed into the axle stub in such a way that an axial spacing remains between an axially outer bearing inner ring and an axially outer end face of the axially inner bearing inner ring.

6. The bearing arrangement as claimed in claim 5, wherein the means for axial tolerance compensation is formed by a cross-sectional tapering of the axially inner bearing inner ring in the region of its axially outer end face.

7. The bearing arrangement as claimed in claim 1, wherein the end serration is a Hirth serration with radially extending teeth having a number of from 20 to 80.