Bearing ring and layer by layer method for manufacturing a bearing ring

Abstract

A bearing ring with integrated cooling channels and a method for producing a bearing ring with integrated cooling channels are provided.

Claims

1. A bearing ring comprising: a material forming an arcuate raceway; and at least one interior channel integrated directly into the material forming the arcuate raceway, the at least one channel having a cross-sectional shape deviating from a circular shape.

2. The bearing ring as recited in claim 1 where the cross-sectional shape of the at least one channel changes along a course of the channel.

3. The bearing ring as recited in claim 1 wherein the material is formed of a low-carbon containing steel with the raceway enriched with carbon.

4. The bearing ring as recited in claim 1 wherein the cross-sectional shape is a curved oblong hole.

5. The bearing ring as recited in claim 1 wherein the cross-sectional shape is a triangle.

6. The bearing ring as recited in claim 1 wherein the cross-sectional shape is a semicircle.

7. The bearing ring as recited in claim 1 wherein the cross-sectional shape is a circular ring segment.

8. The bearing ring as recited in claim 1 wherein the cross-sectional shape is a polygon.

9. The bearing ring as recited in claim 1 wherein the cross-sectional shape of the channel conforms to a shape of the raceway.

10. A method for manufacturing the bearing ring as recited in claim 1 comprising: providing the material forming the arcuate raceway; and forming the at least one channel in the material forming the arcuate raceway, the at least one channel including a plurality of channels having a cross-sectional shape deviating from a circular shape.

11. The method as recited in claim 10 wherein the forming of the bearing ring includes forming the plurality of channels to have a cross-sectional shape changing along a course of the channels.

12. The method as recited in claim 10 wherein providing of the material forming an arcuate raceway includes using a powder of a low-carbon-containing steel.

13. The method as recited in claim 12 wherein the forming of the at least one channel in the material forming the arcuate raceway is performed using a generating manufacturing method.

14. The method as recited in claim 13 wherein the generating manufacturing method is laser melting or laser sintering.

15. The method as recited in claim 13 further comprising enriching the raceway with carbon.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows a cross section of a bearing.

(2) FIG. 2 shows a cross section of a bearing including bearing rings.

DETAILED DESCRIPTION

(3) FIG. 1 shows a cross section of a bearing ring 10 according to the present invention, including channels 12 introduced along raceway 11.

(4) FIG. 2 shows a cross section of a bearing including bearing rings 10 according to the present invention. Various channels 12a, 12b, 12c, 12d, 12e having various cross-sectional shapes are apparent along the raceways 11.