Bearing ring

Patent metadata

Field	Value
Publication number	US-10428871-B2
Application number	US-201415533571-A
Country	US
Kind code	B2
Filing date	Dec 19, 2014
Priority date	Dec 19, 2014
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

A bearing ring having an elongated sensor element that runs along at least a part of a surface of the bearing ring. The connection between the sensor element and the bearing ring is established by a metallic metal material connected by material bonding with the bearing ring as well as with the sensor element. To improve the life of the bearing a sensor element is arranged in a groove that is machined in the bearing ring. The groove extends from the surface of the bearing ring. The metallic material includes or is connected with a flat metallic strip. The flat metallic strip is arranged at or in the surface of the bearing ring and covers the groove.

First claim

The invention claimed is:

1. A bearing ring, comprising:
an elongated sensor element that runs along at least a part of a surface of the bearing ring, wherein the connection between the sensor element and the bearing ring is established by a metallic metal material, the metallic metal material encapsulating the sensor element, wherein the metallic metal material is connected to the bearing ring by a bonding material,
wherein the sensor element is arranged in an annular groove that is machined in the bearing ring, the groove extends from the surface of the bearing ring,
wherein the metallic metal material is connected with a flat metallic strip, the flat metallic strip having a width in an axial direction that is greater than a width of the metallic metal material in the axial direction,
wherein the flat metallic strip is arranged in accordance with one of (a) at the surface of the bearing ring or (b) in the surface of the bearing ring and covers the portion of the annular groove that receives the sensor element.

2. The bearing ring according to claim 1 , the annular groove further comprising a flat metallic strip receiving groove portion having a size and shape to receive the flat metallic strip, wherein the flat metallic strip is arranged-in the flat metallic strip receiving groove portion, where the flat metallic strip is one of flush with an outer cylindrical surface of the bearing ring or beneath the outer cylindrical surface of the bearing ring.

3. The bearing ring according to claim 1 , wherein the sensor element is a glass fiber or comprises a glass fiber.

4. The bearing ring according to claim 1 , wherein the metallic metal material for connecting the sensor element with the bearing ring and the flat metallic strip are made as one piece.

5. The bearing ring according to claim 1 , wherein the metallic metal material circumscribes the sensor element, the metallic material having a substantially circular cross section shape.

6. A bearing ring according to claim 1 , wherein the metallic metal material that encapsulates the sensor element consists of at least two different layers.

7. A bearing ring according to claim 6 , the flat metallic strip further comprises a stainless steel foil, wherein a surface of the stainless steel foil is flush with the surface of the bearing.

8. A bearing ring according to claim 6 , further comprises an inner layer that consists of nickel.

9. A bearing ring according to claim 1 , wherein the bonding material used to fix the metallic metal in the annular groove is an adhesive.

10. A bearing ring according to claim 9 , wherein the adhesive is one of a ceramic glue or a high temperature glue.

11. A bearing ring according to claim 1 , wherein the bonding material used to fix the metallic metal in the annular groove is a vacuum brazing material.

12. A bearing ring according to claim 1 , the annular groove further comprising a flat metallic strip receiving groove portion having a size and shape to receive the flat metallic strip, wherein the flat metallic strip has a surface that is flush with the surface of the bearing ring.

13. A bearing ring according to claim 1 , wherein the flat metallic strip projects from the surface of the bearing ring by a predetermined height.

14. A bearing ring according to claim 1 , wherein the flat metallic strip is connected with the bearing ring by material bonding.

15. A bearing ring according to claim 1 , wherein the flat metallic strip is connected with the bearing ring by spot welding.

16. A bearing ring, comprising:
an elongated sensor element that runs along at least a part of a surface of the bearing ring, wherein the connection between the sensor element and the bearing ring is established by a metallic metal material that is connected by material bonding with the bearing ring as well as with the sensor element,
wherein the sensor element is arranged in a groove that is machined in the bearing ring, the groove extends from the surface of the bearing ring, wherein the metallic metal material is connected with a flat metallic strip, and wherein the flat metallic strip is arranged at or in the surface of the bearing ring and covers the groove,
wherein the flat metallic strip projects from the surface of the bearing ring by a predetermined height.

Assignees

• Skf Ab

Inventors

• Yang Hongyu
• Lang Defeng
• Storken Jozef Maria

Classifications

• F16C19/06

  with a single row or balls · CPC title

• F16C33/586

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

• F16C19/522 Primary

  related to load on the bearing, e.g. bearings with load sensors or means to protect the bearing against overload · CPC title