Engagement-disengagement, suspension or steering release bearing, and motor vehicle equipped with such a release bearing

Patent metadata

Field	Value
Publication number	US-2016017925-A1
Application number	US-201514799630-A
Country	US
Kind code	A1
Filing date	Jul 15, 2015
Priority date	Jul 17, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

An engagement-disengagement, suspension or steering release bearing. The release bearing includes a rolling bearing forming a member for transmitting an axial force and comprising a rotating ring and a non-rotating ring between which a rolling chamber is mounted for rolling bodies and a sealing gasket, which is mounted on a first ring among the rotating and non-rotating rings, and which comprises a framework, having an edge folded down radially toward a groove arranged on a surface of the first ring, and a fitting, having a sealing lip in sliding bearing against, or adjacent to, a corresponding surface of the second ring, The fitting of the seal is suitable for filling the groove of the first ring and part of the fitting is jammed between the folded down edge of the framework and the groove in the configuration with the seal mounted on the first ring.

First claim

1 . An engagement-disengagement, suspension or steering release bearing, the release bearing comprising:
a rolling bearing forming a member transmitting an axial force and comprising a rotating ring and a non-rotating ring between which a rolling chamber for rolling bodies is defined; and a sealing gasket, wherein the sealing gasket is mounted on a first ring among the rotating and non-rotating rings, and wherein the sealing gasket comprises a framework, having an edge folded down radially toward a groove arranged on a surface of the first ring, and a fitting, having a sealing lip in sliding bearing one of against or adjacent to, a corresponding surface of the second ring, wherein the fitting of the seal is suitable for filling the groove of the first ring and part of the fitting is jammed between the folded down edge of the framework and the groove in the configuration with the seal mounted on the first ring.

2 . The release bearing according to claim 1 , wherein the part of the fitting jammed between the folded down edge of the framework and the groove is provided to be sheared during the application of an axial separating force applied on the rings of the rolling bearing.

3 . The release bearing according to claim 2 , wherein the rolling bodies are suitable for exerting a reaction force to the axial separating force on the seal, which are adapted to push the folded down edge of the framework toward the groove and shear the fitting part jammed between the two.

4 . The release bearing according to claim 1 , wherein the groove is arranged on an inner radial surface of the outer ring.

5 . The release bearing according to claim 4 , wherein an outer diameter of the framework is slightly smaller than a diameter of the inner radial surface of the outer ring.

6 . The release bearing according to claim 1 , wherein a difference in diameter between an outer diameter of the framework and a diameter of the inner radial surface of the outer ring is smaller than 0.8 mm.

7 . The release bearing according to claim 1 , wherein a difference in diameter between an outer diameter of the framework and a diameter of the inner radial surface of the outer ring is equal to 0.3 mm.

8 . The release bearing according to claim 1 , wherein the framework is made from metal and the fitting is made from elastomer.

9 . The release bearing according to claim 1 , wherein the seal is secured in rotation with the outer ring, which rotates.

10 . The release bearing according to claim 1 , wherein the groove has a depth greater than 0.1 mm.

11 . The release bearing according to claim 1 , wherein the groove has a depth equal to 0.2 mm.

12 . A motor vehicle, comprising at least one release bearing, each release bearing comprising:
a rolling bearing forming a member transmitting an axial force and comprising a rotating ring and a non-rotating ring between which a rolling chamber for rolling bodies is defined; and a sealing gasket, wherein the sealing gasket is mounted on a first ring among the rotating and non-rotating rings, and wherein the sealing gasket comprises a framework, having an edge folded down radially toward a groove arranged on a surface of the first ring, and a fitting, having a sealing lip in sliding bearing one of against or adjacent to, a corresponding surface of the second ring, wherein the fitting of the seal is suitable for filling the groove of the first ring and part of the fitting is jammed between the folded down edge of the framework and the groove in the configuration with the seal mounted on the first ring, wherein the at least one release bearing is integrated into the motor vehicle.

Assignees

• Arnault Benoit
• Skf Ab

Inventors

• Arnault Benoit

Classifications

• F16C33/7876

  with sealing lips · CPC title

• F16D23/14 Primary

  Clutch-actuating sleeves {or bearings}; Actuating members directly connected to clutch-actuating sleeves {or bearings} · CPC title

• F16C2361/43

  Clutches, e.g. disengaging bearing · CPC title

• F16C33/768

  between relatively stationary parts, i.e. static seals · CPC title

• F16D2300/08

  Details or arrangements of sealings not provided for in group F16D3/84 · CPC title