Method of forming raceway element including contoured joint edge

Patent metadata

Field	Value
Publication number	US-11698104-B2
Application number	US-202117358217-A
Country	US
Kind code	B2
Filing date	Jun 25, 2021
Priority date	Jul 2, 2020
Publication date	Jul 11, 2023
Grant date	Jul 11, 2023

Abstract

A bearing raceway element configured as an inner ring or as an outer ring, or configured to be attachable to an element serving as an inner ring or as an outer ring for the bearing or to an inner ring or an outer ring of the bearing. The raceway element is manufactured from a sheet metal panel and includes at least one first joint edge and at least one second joint edge directed in the circumferential direction that are configured to be connected to each other in order to form an annular raceway element. The at least one first joint edge is at least partially configured as a first alignment element and/or includes the first alignment element. Also a bearing including the raceway element and an associated method.

First claim

What is claimed is:

1. A method comprising:
separating a strip of sheet metal from a sheet metal body by a combination of punching and laser cutting, the strip having a first joint edge having at least one first alignment element and a second joint edge having at least one second alignment element complementary to the at least one first alignment element;
bending the strip into a ring and materially bonding the first joint edge to the second joint edge;
installing the ring on a radially inner circumferential surface or a radially outer circumferential surface; and
mounting a plurality of rolling-elements on the ring,
wherein the first joint edge and the second joint edge are formed by the punching and side edges connecting the first joint edge and the second joint edge are formed by the laser cutting.

2. The method according to claim 1 ,
wherein the at least one first alignment element includes a projection protruding in a circumferential direction, and the at least one second alignment element includes an opening complementary to the protruding projection.

3. The method according to claim 2 ,
wherein the projection and the opening have a triangular shape or a semicircular shape, or wherein the at least one first and second alignment elements have a wave shape.

4. The method according to claim 1 ,
wherein the at least one first alignment element includes a projection protruding in a circumferential direction and an opening recessed in the circumferential direction, and the at least one second alignment element includes an opening complementary to the protruding projection and a projection complementary to the recessed opening.

5. The method according to claim 1 ,
wherein the at least one first alignment element includes a plurality of first alignment elements, and the at least one second alignment element includes a plurality of corresponding second alignment elements complementary to the plurality of first alignment elements.

Assignees

• Skf Ab

Inventors

• Friedrich Hans-Juergen
• Huhn Norbert
• Kettner Thomas
• Metz Harald
• Radina Alfred
• Schierling Jonas
• Soellner Maximilian
• Volkmuth Markus

Classifications

• F16C2220/68

  by electrical discharge or electrochemical machining · CPC title

• F16C33/588 Primary

  Races of sheet metal · CPC title

• F16C19/34

  for both radial and axial load · CPC title

• F16C33/585 Primary

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

• F16C33/64

  Special methods of manufacture · CPC title