Temperature compensation ring as well as bearing ring with the temperature compensation ring

Patent metadata

Field	Value
Publication number	US-10087986-B2
Application number	US-201615296543-A
Country	US
Kind code	B2
Filing date	Oct 18, 2016
Priority date	Oct 18, 2016
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

A temperature compensation ring configured to compensate for a temperature-dependent distance change between two components includes a base body made from an elastic material, and at least a section of at least one surface of the base body is configured to reduce a friction in the axial direction between the temperature compensation ring and an abutment surface, by, for example, being coated with a friction reducing coating and/or by including one or more grooves for receiving a lubricant.

First claim

What is claimed is:

1. A temperature compensation ring configured to compensate for a temperature-dependent distance change between two components, comprising:
a base body made from an elastic material;
wherein at least a section of at least one surface of the base body includes at least one groove configured to receive a lubricant to reduce a friction in an axial direction between the temperature compensation ring and an abutment surface on which the temperature compensation ring is mountable.

2. The temperature compensation ring according to claim 1 , wherein the at least one groove is disposed at least in a region at which a gap arises in an assembled state between a bearing ring and a housing at which the bearing ring is disposed.

3. The temperature compensation ring according to claim 2 , wherein the at least one groove is disposed on a surface facing in the radial direction.

4. The temperature compensation ring according to claim 3 , wherein the at least one groove is disposed inside a section in the axial direction that extends away in the axial direction from an end surface of the temperature compensation ring less than 30% of a total extension of the temperature compensation ring or wherein at least two grooves are disposed spaced from one another in the axial direction.

5. The temperature compensation ring according to claim 1 , further including at least one strengthening body manufactured from a harder material than a material of the base body and wherein the at least one groove is disposed in the strengthening body.

6. The temperature compensation ring according to claim 5 , wherein the at least one strengthening body is manufactured from a metallic material and wherein the strengthening body is configured to partially form opposing side surfaces of the temperature compensation ring.

7. The temperature compensation ring according to claim 5 , wherein the strengthening body is a spring whose windings are disposed in the circumferential direction.

8. The temperature compensation ring according to claim 1 , wherein the at least one groove comprises a first groove having a first depth and a first axial width and a second groove having a second depth and a second axial width, wherein the first depth is substantially equal to the second depth and the first axial width is greater than the second axial width.

9. The temperature compensation ring according to claim 1 , wherein the at least one groove comprises a first groove having a first depth and a first axial width and a second groove having a second depth and a second axial width, wherein the first axial width is substantially equal to the second axial width and the first depth is substantially equal to the second depth.

10. The temperature compensation ring according to claim 1 , wherein a first portion of the outer surface has a first coefficient of friction with an abutment surface on which the temperature compensation ring is mountable and a second portion of the outer surface of the base body is covered with a layer of material having a second coefficient of friction with the abutment surface, the second coefficient of friction being lower than the first coefficient of friction.

11. A temperature compensation ring configured to compensate for a temperature-dependent distance change between two components, comprising:
a base body made from an elastic material, the base body having an outer surface,
wherein a first portion of the outer surface has a first coefficient of friction with an abutment surface on which the temperature compensation ring is mountable and a second portion of the outer surface of the base body is covered with a layer of material having a second coefficient of friction with the abutment surface, the second coefficient of friction being lower than the first coefficient of friction.

12. The temperature compensation ring according to claim 11 , wherein the layer of material comprises a coating disposed at least in a region at which a gap arises in an assembled state between a bearing ring and a housing at which the bearing ring is disposed.

13. The temperature compensation ring according to claim 12 , wherein the coating is disposed on a surface facing in a radial direction.

14. The temperature compensation ring according to claim 13 , wherein the coating is disposed inside a section in the axial direction that extends away in the axial direction from an end surface of the temperature compensation ring less than 30% of a total extension of the temperature compensation ring or wherein at least two coating sections are disposed spaced from one another in the axial direction.

15. The temperature compensation ring according to claim 11 , further including at least one strengthening body manufactured from a harder material than a material of the base body and wherein the at least one groove is disposed in the strengthening body.

16. The temperature compensation ring according to claim 15 , wherein the at least one strengthening body is manufactured from a metallic material and wherein the strengthening body is configured to partially form opposing side surfaces of the temperature compensation ring.

17. The temperature compensation ring according to claim 15 , wherein the strengthening body is a spring whose windings are disposed in the circumferential direction.

18. A temperature compensation ring configured to compensate for a temperature-dependent distance change between two components, comprising:
a base body made from an elastic material;
groove means in at least one surface of the base body for receiving a lubricant for reducing a friction in an axial direction between the temperature compensation ring and an abutment surface on which the temperature compensation ring is mountable.

Assignees

• Wendt Volker
• Dittmar Rico
• Skf Ab

Inventors

• Wendt Volker
• Dittmar Rico

Classifications

• F16C2223/30

  Coating surfaces · CPC title

• F16C2208/10

  Elastomers; Rubbers · CPC title

• F16C19/525 Primary

  related to temperature and heat, e.g. insulation · CPC title

• F16C35/07

  Fixing them on the shaft or housing with interposition of an element · CPC title

• F16C25/083

  with resilient means acting axially on a race ring to preload the bearing · CPC title