# US 10,371,209 B2 · Reshaped ring for rolling bearing

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- Number: US 10,371,209 B2
- Document ID: US10371209B2
- Status: Granted
- Kind: B2
- Application number: 15/754,083
- Filed: 2016-08-11
- Published: 2018-08-23
- Granted: 2019-08-06
- Earliest claimed: 2015-09-28
- Assignees: Schaeffler Technologies AG & Co. KG
- Applicants: Schaeffler Technologies AG & Co. KG
- Inventors: Torsten Keller; Heinz Pedrotti; Winfried Ott
- Web page: https://patentgrep.com/patent/US10371209B2

## CPC

- F16C 33/588: {Races of sheet metal}
- F16C 33/585: {of raceways, e.g. ribs to guide the rollers}
- F16C 33/64: Special methods of manufacture
- F16C 19/10: for axial load mainly
- F16C 2220/42: by working of thin-walled material such as sheet or tube
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

## Abstract

Rings for a rolling bearing are disclosed, wherein the rings define a primary axis (A). The ring may include a ring formed as a hollow ring having a hollow chamber encircling the primary axis (A). A wall of the hollow ring may be of one-piece and/or seamless design in an axial section along the primary axis (A). The ring may be a bearing ring configured for rolling contact with rolling elements. In one example, the wall includes a raceway section in the wall for rolling contact with the rolling elements, a bearing bottom section for supporting the ring, two lateral supporting wall sections, and two connecting sections for connecting the two lateral supporting wall sections to the raceway section.

## Claims

### Claim 1

A ring for a rolling bearing, wherein the ring defines a primary axis (A), comprising:
a ring formed as a hollow ring having a hollow chamber with two hollow chamber sections encircling the primary axis (A) and a planar stop face aligned perpendicularly to the primary axis (A) for a cage or a sealing washer, and
a wall of the hollow ring is of one-piece or seamless design in an axial section along the primary axis (A),
wherein the ring is a bearing ring configured for rolling contact with rolling elements, the wall has a raceway section for rolling contact with the rolling elements, and the raceway section is designed as a v-shaped groove comprising first and second groove walls for contacting the rolling elements with a groove base between the first and second groove walls that does not contact the rolling elements.

### Claim 2 (depends on 1)

The ring as claimed in claim 1, wherein the wall has a bearing bottom section for supporting the ring, two lateral supporting wall sections, and two connecting sections for connecting the two lateral supporting wall sections to the raceway section.

### Claim 3 (depends on 2)

The ring as claimed in claim 2, wherein the raceway section rests on the bearing bottom section, wherein the bearing bottom section supports the raceway section.

### Claim 4 (depends on 1)

The ring as claimed in one claim 1, wherein the wall encloses the two hollow chamber sections.

### Claim 5 (depends on 1)

A rolling bearing having at least one ring as claimed in claim 1, wherein the rolling bearing is designed as an axial rolling bearing.

### Claim 6 (depends on 1)

A method for producing the ring as claimed in claim 1, wherein the ring is reshaped from a ring blank by a press tool.

### Claim 7 (depends on 6)

The method for producing the ring as claimed in claim 6, wherein the ring blank is bent out of a straight tube forming a bent tube, wherein ends of the bent tube are thermally connected to form the ring blank.

### Claim 8

A ring for a rolling bearing, wherein the ring defines a primary axis (A), comprising:
a bearing ring formed as a hollow ring having a hollow chamber encircling the primary axis (A) and a planar stop face aligned perpendicularly to the primary axis (A) for a cage or a sealing washer;
a wall of the hollow ring is of seamless design in an axial section along the primary axis (A); and
wherein the wall includes a raceway section in the wall for rolling contact with rolling elements, a bearing bottom section for supporting the ring, two lateral supporting wall sections, and two connecting sections for connecting the two lateral supporting wall sections to the raceway section.

### Claim 9 (depends on 8)

The ring as claimed in claim 8, wherein the raceway section is designed as a groove for a rolling element.

### Claim 10 (depends on 8)

The ring as claimed in one claim 8, wherein the hollow chamber has two hollow chamber sections, wherein the wall encloses the two hollow chamber sections.

### Claim 11 (depends on 8)

The ring as claimed in claim 8, wherein the raceway section rests on the bearing bottom section, wherein the bearing bottom section supports the raceway section.

### Claim 12 (depends on 8)

A rolling bearing having at least one ring as claimed in claim 8, wherein the rolling bearing is designed as an axial rolling bearing.

### Claim 13

A method for producing a ring for a rolling bearing, the ring comprising:
a primary axis (A); and,
a bearing ring formed as a hollow ring having a hollow chamber encircling the primary axis (A), wherein:
a wall of the hollow ring is of seamless design in an axial section along the primary axis (A);
the wall comprises:
a raceway section in the wall for rolling contact with rolling elements;
a bearing bottom section for supporting the ring;
two lateral supporting wall sections; and,
two connecting sections for connecting the two lateral supporting wall sections to the raceway section;
the ring is reshaped from a ring blank by a press tool; and,
after reshaping, the ring is stamped in order to form a stop face for a cage or a sealing washer.

### Claim 14 (depends on 13)

The method for producing the ring as claimed in claim 13, wherein the ring blank is bent out of a straight tube forming a bent tube, wherein ends of the bent tube are thermally connected to form the ring blank.