IP Library Granted Patent US 8,690,445
Granted Patent B2
US 8,690,445 · App. 13/241,661 · Granted Apr 8, 2014

Rolling bearing arrangement

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Quick Facts
Patent No.
US 8,690,445
App. No.
13/241,661
Granted
Apr 8, 2014
Kind
B2
Abstract

A rolling bearing arrangement, which has at least one angular contact rolling bearing arranged within a housing and at least one lash compensation element that is supported axially in one direction on the housing and is capable of being biased against a bearing ring of the angular contact rolling bearing with the bearing ring being axially movable relative to the housing, and a U-shaped ring which has two radially opposing legs directed in an axial direction. The U-shaped ring rendering the lash compensation element radially immovable by positive engagement while being guided on the bearing ring of the angular contact rolling bearing for axial displacement relative to the bearing ring, and the axial section of the bearing ring projecting axially between the legs of the ring profile.

Claims (18)

1. A rolling bearing arrangement, comprising:

at least one angular contact rolling bearing arranged within a housing, the angular contact rolling bearing having a bearing ring with a raceway for a rolling element, the bearing ring having at least one moveable section that is axially moveable relative to the housing;

at least one lash compensation element, which is supported axially in one direction on the housing and supported on the bearing ring so as to be axially variable in shape relative to the bearing ring such that the lash compensation element is capable of being biased against a front surface of the bearing ring of the angular contact rolling bearing; and

a U-shaped ring profile, which has two radially opposing legs directed in an axial direction, at least partially surrounding the lash compensation element, rendering the lash compensation element radially immoveable by positive engagement,

the bearing ring having a shoulder between the raceway and the front surface, the shoulder having a circumferential outer contour forming an outer diameter of the bearing ring and the circumferential inner contour forming an inner diameter of the bearing ring, wherein a section of the shoulder at the front surface has a radially outer diameter that is smaller than said outer diameter of the bearing ring, a radially outer leg of the legs is received in the section of the shoulder such that the U-shaped ring profile does not protrude radially beyond the outer diameter of the bearing ring, and a radially inner leg of the legs projects radially inward of the inner diameter of the inner contour.

2. The rolling bearing arrangement according to claim 1 , wherein the lash compensation element bears in one direction axially against the bearing ring and in an opposite axial direction against a radially directed cross-connection between the legs of the ring profile.

3. The rolling bearing arrangement according to claim 1 , wherein the section of the shoulder is a cylindrical section, and the lash compensation element is encapsulated in two radial directions and in one axial direction by the ring profile and in a further axial direction on a front end of the lash compensation element by the bearing ring, and the cylindrical section of the bearing ring plunges axially between the legs so that each of the legs bears in one radial direction against the cylindrical section.

4. The rolling bearing arrangement according to claim 1 , wherein the lash compensation element is connected by fusion of materials to the bearing ring.

5. The rolling bearing arrangement according to claim 1 , wherein the lash compensation element is made at least of one material that has a different thermal expansion coefficient from a material of which the housing is made.

6. The rolling bearing arrangement according to claim 1 , wherein the lash compensation element has a thermal expansion coefficient that is different from a thermal expansion coefficient of the bearing ring.

7. The rolling bearing arrangement according to claim 1 , wherein the lash compensation element has a thermal expansion coefficient that is at least higher than a thermal expansion coefficient of the bearing ring.

8. An angular contact rolling bearing, comprising:

at least one lash compensation element possessing temperature-dependent extensibility;

a bearing ring having a raceway for a rolling element; and

a U-shaped ring profile having two radially opposing legs directed in an axial direction, the ring profile rendering the lash compensation element radially immovable by positive engagement while being guided on the bearing ring of the angular contact rolling bearing for axial displacement relative to the bearing ring, and the at least one axial section of the bearing ring projecting axially between the legs of the ring profile,

the bearing ring further comprising a shoulder between the raceway and the front surface of the bearing ring, the shoulder having a circumferential outer contour forming an outer diameter of the bearing ring and the circumferential inner contour forming an inner diameter of the bearing ring, wherein a section of the shoulder at the front surface has a radially outer diameter that is smaller than said outer diameter of the bearing ring, a radially outer leg of the legs is received in the section of the shoulder such that the U-shaped ring profile does not protrude radially beyond the outer diameter of the bearing ring, and a radially inner leg of the legs projects radially inward of the inner diameter of the inner contour.

9. The rolling bearing arrangement according to claim 8 , wherein the lash compensation element bears in one direction axially against the bearing ring and in an opposite axial direction against a radially directed cross-connection between the legs of the ring profile.

10. The rolling bearing arrangement according to claim 8 , wherein the lash compensation element is a thermo compensation element which is made at least of one material that has a different thermal expansion coefficient from a material of which the housing and/or the bearing ring is made.

Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
CHANGE OF NAME Recorded Jul 11, 2012
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 028533/0036 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2011
From: DOERRFUSS, FLORIAN; BIERMANN, THORSTEN; WIESINGER, FRITZ
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 027331/0801 →