Bearing assembly

Patent metadata

Field	Value
Publication number	US-10240635-B2
Application number	US-201715685426-A
Country	US
Kind code	B2
Filing date	Aug 24, 2017
Priority date	Sep 7, 2016
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A bearing assembly includes at least one rolling-element bearing that includes a bearing outer ring and a bearing inner ring and rolling elements disposed therebetween. The at least one rolling-element bearing is mounted in a component with the bearing outer ring in contact with the component, and the outer bearing ring includes a first edge surface extending between a rolling-element raceway and a radial end surface of bearing ring, and/or a second edge surface extending between an axial outer fitting surface and the radial end surface of the bearing ring. The component includes, on a surface facing the first and/or second edge surface, at least one material accumulation that interacts with the first and/or second edge surface.

First claim

What is claimed is:

1. A bearing assembly comprising:
at least one rolling-element bearing that includes a bearing outer ring and a bearing inner ring and rolling elements disposed therebetween,
wherein the at least one rolling-element bearing is mounted in a component with the bearing outer ring in contact with the component,
wherein the outer bearing ring includes a first edge surface extending between a rolling-element raceway and a radial end surface of the bearing outer ring, and/or a second edge surface extending between an axial outer fitting surface and the radial end surface of the bearing outer ring,
wherein the component includes, on a surface facing the first and/or second edge surface, at least one material accumulation that interacts with the first and/or second edge surface, and wherein the first and/or the second edge surface includes at least one structure projecting away from the first and/or second edge surface configured to form an interference fit connection with the at least one material accumulation.

2. The bearing assembly according to claim 1 , wherein the first edge surface is angled radially inward.

3. The bearing assembly according to claim 1 , wherein the at least one structure and the at least one material accumulation form an interference-fit connection.

4. The bearing assembly according to claim 3 , wherein the at least one structure is configured encircling or sectionally encircling in the first and/or second edge surface of the outer bearing ring.

5. The bearing assembly according to claim 3 , wherein the at least one structure is a knurling.

6. The bearing assembly according to claim 5 , wherein the knurling is serrated and includes including at least one serration.

7. The bearing assembly according to claim 6 , wherein the at least one serration extends along the first edge surface from the rolling-element raceway toward the end surface of the bearing outer ring and/or along the second edge surface of the fitting surface toward the end surface of the bearing outer ring.

8. The bearing assembly according to claim 5 , wherein the at least one serration is rounded and/or truncated-cone-shaped.

9. The bearing assembly according to claim 1 , wherein the component receiving the bearing outer ring includes a softer material than the bearing outer ring received by the component.

10. The bearing assembly according to claim 1 , wherein the at least one rolling-element bearing comprises a tapered roller bearing, and wherein the first and/or second edge surface of the bearing outer ring is disposed on a side of the bearing assembly on having a smaller rolling-element diameter (d).

11. A bearing assembly comprising:
at least one rolling-element bearing that includes a bearing outer ring and a bearing inner ring and rolling elements disposed therebetween,
wherein the at least one rolling-element bearing is mounted in a component with the bearing outer ring in contact with the component,
wherein the outer bearing ring includes a first edge surface extending between a rolling-element raceway and a radial end surface of bearing ring, and/or a second edge surface extending between an axial outer fitting surface and the radial end surface of the bearing outer ring, the first and/or second edge surfaces having serrations projecting away from the first and/or second edge surface, and
wherein the bearing outer ring is pressed into the component such that the serrations bite into the component and form an interference fit between the bearing outer ring and the component.

Assignees

• Skf Ab

Inventors

• Wendt Volker
• Dittmar Rico
• Katsaros Padelis

Classifications

• F16C2226/80

  with splines, serrations or similar profiles to prevent movement between joined parts · CPC title

• F16C33/585 Primary

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

• F16C19/364 Primary

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

• F16C2202/22

  Coefficient of expansion · CPC title

• F16C33/586

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