DE102015200141A1 - bearing arrangement - Google Patents

Abstract

Bearing arrangement of a steering column of a motor vehicle with a bearing (3), which has an outer ring (5) and an inner ring (4) and arranged therebetween rolling elements (6), wherein the inner ring (4) arranged on a on one of the bearing assembly associated steering shaft tolerance ring ( 2) is arranged, wherein between the inner ring (4) and the tolerance ring (2) a lubricant is provided.

Description

Field of the invention

The invention relates to a bearing assembly of a steering column of a motor vehicle with a bearing.

Background of the invention

Bearing arrangements for motor vehicle-side steering columns are known from the prior art in different embodiments. Corresponding bearing arrangements typically comprise two rolling bearings, which are arranged axially braced against one another in corresponding steering columns.

An outer ring is usually pressed directly into the steering column of the steering column. For larger tolerances of the steering tube this can also sit by means of a tolerance ring in the steering tube. With respect to the Verbausituation a known bearing assembly, the tolerance ring is coupled in the region of an axial end with a spring axially compressing this.

Tolerance rings are used, for example, to compensate for distances between the shaft and the bearing to compensate for production-related inaccuracies and function-related forces, in particular to keep sliding forces between the shaft and the bearing in a desired range and compensate for position and shape deviations of the surrounding construction.

The DE 41 14 643 A1 discloses a rolling bearing for steering columns, which is pushed onto a steering column. The rolling bearing is also equipped with a tolerance ring, which has a plurality of elastic projections which protrude radially inwardly in the region of the bore of the tolerance ring. These elastic projections can engage in recesses of the steering shaft and be supported on corresponding support surfaces of the steering shaft.

Summary

The object of the present invention is to provide an improved bearing arrangement of a steering column of a motor vehicle.

According to the invention, this object is achieved by a bearing arrangement of a steering column of a motor vehicle having a bearing, which has an outer ring and an inner ring and arranged therebetween rolling elements, wherein the inner ring is arranged on a bearing arrangement on a steering shaft associated tolerance ring, wherein between the inner ring and the Tolerance ring a lubricant is provided.

A tolerance ring is provided to equalize or bridge a distance between, for example, the steering shaft and the bearing. For this purpose, the tolerance ring is placed without clearance between the steering shaft and the bearing.

The bearing arrangement according to the invention of a steering column has a lubricant between the inner ring and the tolerance ring. By means of the principle according to the invention, frictional effects which arise during assembly are minimized. Furthermore, it is advantageous that the tolerance ring can be positioned during assembly in its final position and does not slide at a later time due to the setting behavior. The lubricant can be designed as a grease.

According to an alternative embodiment of the invention snap elements are provided at one end of the tolerance ring, which has on the side facing the steering shaft at least one exemption. This additionally allows accurate positioning of the tolerance ring in the end position. The release may be formed by a shoulder, a recess or the like. Preferably, each snap element has such an exemption.

Preferably, the bearing is designed as a rolling bearing.

Short description of the drawing

Hereinafter, an embodiment of the invention will be illustrated with reference to two figures. Show it:

1 a schematic diagram of a bearing assembly according to an embodiment of the invention, and

2 an enlarged view of the in 1 shown tolerance ring.

Detailed description of the drawing

1 shows a schematic diagram of a bearing assembly 1 according to an embodiment of the invention. The bearing arrangement 1 includes a tolerance ring 2 , which is arranged rotationally fixed on a steering shaft, not shown. On the tolerance rings 2 is each a warehouse 3 , which is designed as angular contact ball bearings arranged. An inner ring 4 of the camp 3 is non-rotatable on the outer circumference of the tolerance ring 2 arranged. Between the inner ring 4 and the tolerance ring 2 a lubricant is provided.

An outer ring 5 of the camp 3 is attached to not shown housing part. Between the inner ring 4 and the outer ring 5 are rolling elements 6 arranged.

2 shows an enlarged view of the in 1 shown tolerance ring. As can be seen, the tolerance ring has 2 Snap-in elements at one end 7 on. On a side facing the steering shaft, the snap elements 7 each time exemptions 8th on. These exemptions 8th are by a in the range of snap elements 7 provided recess 9 educated. Between the snap elements 7 and the remaining part of the tolerance ring 2 this results in a paragraph 10 ,

LIST OF REFERENCE NUMBERS

1

 bearing arrangement

2

 tolerance ring

3

 camp

4

 inner ring

5

 outer ring

6

 rolling elements

7

 snap elements

8th

 exemption

9

 recess

10

paragraph

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 4114643 A1 [0005]

Claims (3)

Bearing arrangement of a steering column of a motor vehicle with a bearing ( 3 ), which has an outer ring ( 5 ) and an inner ring ( 4 ) and arranged therebetween rolling elements ( 6 ), wherein the inner ring ( 4 ) on a arranged on one of the bearing assembly steering shaft tolerance ring ( 2 ), characterized in that between the inner ring ( 4 ) and the tolerance ring ( 2 ) A lubricant is provided. Bearing arrangement according to claim 1, wherein at one end of the tolerance ring ( 2 ) Snap elements ( 7 ) are provided, which on the side facing the steering shaft at least one exemption ( 8th ) having. Bearing arrangement according to one of the preceding claims, wherein the bearing ( 3 ) is designed as a rolling bearing.

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