Roller bearing flange configuration

Patent metadata

Field	Value
Publication number	US-9618043-B2
Application number	US-201214119583-A
Country	US
Kind code	B2
Filing date	May 24, 2012
Priority date	May 24, 2011
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A bearing ring for a roller bearing includes a raceway configured to support at least one rolling-element roller and a flange at an end of the raceway extending away from the raceway and having an abutment surface for guiding the at least one rolling-element roller on the raceway. The abutment surface has a curvature that decreases monotonically from a starting point on the abutment surface to an end of the abutment surface, and the abutment surface includes at least one strongly monotonically decreasing segment.

First claim

The invention claimed is:

1. A bearing ring for a roller bearing, comprising a raceway for at least one rolling-element roller, and a flange for transmitting axial forces, such that the flange is disposed on an end side of the raceway and extends away from the raceway and has an abutment surface for the at least one rolling-element roller, such that the abutment surface faces towards the raceway and includes a curvature that decreases monotonically from a starting point up to an end of the abutment surface and has at least one segment having a second curvature closer to the starting point that has a greater degree of curvature than a first curvature that is further from the starting point than the second curvature, wherein an angle between a tangential plane at the end of the abutment surface and a second tangential plane on a curved surface of the curvature at the starting point, falls within a range greater than 0 degrees and up to 30 degrees.

2. The bearing ring according to claim 1 , wherein the starting point is disposed between an inner end of the abutment surface, the inner end being adjacent to the raceway, and an outer end of the abutment surface, the outer end extending away from the raceway, and the curvature of the abutment surface decreases monotonically from the starting point towards both ends of the abutment surface.

3. The bearing ring according to claim 1 , wherein the starting point is disposed on an inner end of the abutment surface, the inner end is adjacent to the raceway.

4. The bearing ring according to claim 1 , wherein the roller bearing is a tapered rolling bearing for use with a tapered roller.

5. The bearing ring according to claim 1 , wherein the bearing ring is a bearing inner ring.

6. A roller bearing including a bearing inner ring according to claim 1 , and including at least one tapered roller.

7. A roller bearing according to claim 6 , wherein the at least one tapered roller has, on its surface portion facing towards the abutment surface, a curved surface having a constant curvature.

8. A method for manufacturing a bearing ring for a roller bearing including a raceway for at least one rolling-element roller, comprising:
providing a flange for transmitting axial forces, such that the flange is disposed on an end side of the raceway and extends away from the raceway; and
producing an abutment surface, which faces away from the raceway, for rolling-element rollers on the flange, wherein the curvature of the abutment surface decreases monotonically from a starting point to an end of the abutment surface and has at least one segment having a second curvature closer to the starting point having a greater degree of curvature than a first curvature that is further from the starting point than the second curvature, wherein an angle between a tangential plane at the end of the abutment surface and a second tangential plane on a curved surface of the curvature at the starting point, falls within a range greater than 0 degrees and up to 30 degrees, wherein the roller bearing is a tapered rolling bearing, and wherein the bearing ring is a bearing inner ring.

Assignees

• Liang Baozhu
• Reugels Michael
• Skf Ab

Inventors

• Liang Baozhu
• Reugels Michael

Classifications

• F16C19/225 Primary

  Details of the ribs supporting the end of the rollers · CPC title

• F16C33/585

  of raceways, e.g. ribs to guide the rollers · CPC title

• F16C33/586 Primary

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

• F16C19/364

  with tapered rollers, i.e. rollers having essentially the shape of a truncated cone · CPC title

• F16C33/366

  Tapered rollers, i.e. rollers generally shaped as truncated cones · CPC title