Outer ring for a rolling-element bearing, and method for assembling a rolling-element bearing

Patent metadata

Field	Value
Publication number	US-9476455-B2
Application number	US-201414520653-A
Country	US
Kind code	B2
Filing date	Oct 22, 2014
Priority date	Oct 24, 2013
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

An outer ring for a rolling-element bearing includes a first region having a first diameter on an outer surface of the outer ring, a second region on the outer surface of the outer ring, the second region having a second diameter larger than the first diameter, a circumferential groove at a boundary between the first region and the second region, and a filler in the groove. The filler is configured such that a temperature compensation ring can be mounted to the outer ring at the first region so that it abuts on an axial end of the second region, the temperature compensation ring having an inner diameter, at least in the region which is disposed over the groove in the radial direction, that corresponds to the outer diameter of the first region.

First claim

We claim:

1. An outer ring for a rolling-element bearing comprising:
a first region having a first diameter on an outer surface of the outer ring; and
a second region on the outer surface of the outer ring, the second region having a second diameter larger than the first diameter,
a circumferential groove at a boundary between the first region and the second region; and
a filler in the groove, and a temperature compensation ring is mounted to the outer ring at the first region so that the temperature compensation ring abuts on an axial end of the second region, wherein the temperature compensation ring has an inner diameter, at least in a region which is disposed over the groove in the radial direction, which corresponds to the outer diameter of the first region.

2. The outer ring according to claim 1 , wherein a volume of the filler is at least as great as a volume of the groove.

3. The outer ring according to claim 1 , wherein the filler is configured to be at least partially displaced from the groove by the temperature compensation ring, and to extend between the surface of the outer ring and the temperature compensation ring.

4. The outer ring according to claim 1 , wherein a coefficient of thermal expansion of the filler is the same as a coefficient of thermal expansion of the temperature compensation ring.

5. The outer ring according to claim 1 , wherein a modulus of elasticity of the filler is the same as a modulus of elasticity of the temperature compensation ring.

6. The outer ring according to claim 1 , wherein the filler has a temperature resistance of at least 150° C.

7. The outer ring according to claim 1 , wherein a volume of the filler is at least as great as a volume of the groove, wherein the filler is configured to be at least partially displaced from the groove by the temperature compensation ring, and to extend between the surface of the outer ring and the temperature compensation ring, wherein a coefficient of thermal expansion of the filler is the same as a coefficient of thermal expansion of the temperature compensation ring, wherein a modulus of elasticity of the filler is the same as a modulus of elasticity of the temperature compensation ring and wherein the filler has a temperature resistance of at least 150° C.

8. A rolling-element bearing including an outer ring according to claim 1 .

9. A method for assembling a rolling-element bearing, comprising:
providing an outer ring of a rolling-element bearing having a first region having a diameter and a second region having a greater diameter than the diameter of the first region and a circumferential groove at a boundary of the first region and the second region;
introducing a filler into the groove; and
pushing a temperature compensation ring having an inner diameter which corresponds to the diameter of the first region onto the first region until the temperature compensation ring abuts on an axial end of the second region and is disposed over the groove in the radial direction.

10. The method according to claim 9 , wherein the groove has a volume and wherein introducing the filler into the circumferential groove comprises introducing a volume of filler larger than the volume of the groove into the groove.

11. The method according to claim 9 , comprising pushing the temperature compensation ring over the groove while the filler is liquid such that the filler in the groove receives a surface shape which correspond to a radially-inward-directed surface shape of the temperature compensation ring.

12. An outer ring for a rolling-element bearing comprising:
a radial inner surface;
a radial outer surface having a first region having a first diameter, a second region having a second diameter larger than the first diameter and an axially facing wall between the first region and the second region, the first region being configured to receive a temperature compensation ring;
a circumferential groove at a boundary of the first region and the axially facing wall, the groove extending radially into the first region and axially into the axially facing wall, such that the temperature compensation ring includes a first portion extending over the groove; and
a filler in the groove, the filler being formed of a material different than a material in which the groove is formed.

13. The outer ring according to claim 12 , wherein the filler conforms to the profile of the first portion of the temperature compensation ring.

14. The outer ring according to claim 13 , wherein the filler extends along the axially facing wall and adhesively secures the temperature compensation ring to the axially facing wall.

Assignees

• Spies Rainer
• Katsaros Padelis
• Skf Ab

Inventors

• Spies Rainer
• Katsaros Padelis

Classifications

• Y10T29/49679

  Anti-friction bearing or component thereof · CPC title

• F16C25/08

  self-adjusting · CPC title

• F16C2202/22

  Coefficient of expansion · CPC title

• F16C33/586 Primary

  outside the space between the races, e.g. end faces or bore of inner ring · CPC title

• F16C43/04

  Assembling rolling-contact bearings · CPC title