# US 10,871,192 B2 · Flanged inner ring for orbital forming operation

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- Number: US 10,871,192 B2
- Document ID: US10871192B2
- Status: Granted
- Kind: B2
- Application number: 16/683,732
- Filed: 2019-11-14
- Published: 2020-05-21
- Granted: 2020-12-22
- Earliest claimed: 2018-11-15
- Assignees: Aktiebolaget Skf
- Applicants: Aktiebolaget SKF
- Inventors: Daniele Brogna; Domenico Bruno; Fulvio Nicastri; Davide Antonio Olivieri
- Web page: https://patentgrep.com/patent/US10871192B2

## CPC

- F16C 19/186: {with three raceways provided integrally on parts other than race rings, e.g. third generation hubs}
- F16C 33/605: {with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage}
- F16C 19/18: with two or more rows of balls
- F16C 33/60: divided {or split, e.g. comprising two juxtaposed rings}
- F16C 33/64: Special methods of manufacture
- F16C 35/063: Fixing them on the shaft (with interposition of an element F16C35/07)
- F16C 43/04: Assembling rolling-contact bearings
- F16C 25/083: {with resilient means acting axially on a race ring to preload the bearing}
- F16C 2226/52: with plastic deformation, e.g. caulking or staking
- F16C 2326/02: Wheel hubs or castors
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

## Abstract

A flanged inner ring, and methods of forming the same, having a rolling edge configured to preload axially a radially inner ring of a rolling bearing after being plastically deformed; the rolling edge including a diameter of increasing variable size along an axis (X) of symmetry of the flanged inner ring and, wherein the increasing variable size increases along the axis (X) in a direction away from the radially inner ring, and the rolling edge includes an outer preloading surface configured such that in a deformed configuration the outer preloading surface is arranged against the radially inner ring and such that in an undeformed configuration the outer preloading surface is inclined away from the axis (X) of symmetry of the flanged inner ring.

## Claims

### Claim 1

A flanged inner ring, comprising:
a rolling edge configured to axially preloaded a radially inner ring of a rolling bearing after being plastically deformed,
wherein,
the rolling edge includes a diameter of increasing variable size along an axis (X) of symmetry of the flanged inner ring and, wherein the increasing variable size increases along the axis (X) in a direction away from the radially inner ring,
wherein the rolling edge includes an outer preloading surface configured such that in a deformed configuration the outer preloading surface is arranged against the radially inner ring and such that in an undeformed configuration the outer preloading surface is inclined away from the axis (X) of symmetry of the flanged inner ring.

### Claim 2 (depends on 1)

The flanged inner ring of claim 1, wherein the outer preloading surface is axially aligned with a radially outer surface for mounting the radially inner ring, and is connected to the radially outer surface via a connecting surface, the outer preloading surface includes a diameter smaller in size than a diameter of the radially outer surface at least along the connecting surface.

### Claim 3 (depends on 2)

The flanged inner ring of claim 2, wherein the outer preloading surface is a conical surface, and the rolling edge includes a radial thickness which is gradually thicker along the axis (X) of symmetry in the direction away from the inner ring.

### Claim 4 (depends on 1)

The flanged inner ring of claim 1, wherein the rolling edge further includes an inner cylindrical surface coaxial with the axis (X) of symmetry.

### Claim 5 (depends on 4)

The flanged inner ring of claim 4, wherein the rolling edge further includes an annular connecting surface connecting the outer preloading surface and the inner cylindrical surface.

### Claim 6 (depends on 5)

The flanged inner ring of claim 5, wherein the annular connecting surface extends in a direction transverse to the axis (X) of symmetry.

### Claim 7 (depends on 6)

The flanged inner ring of claim 6, wherein the annular connecting surface is chamfered towards the outer preloading surface.

### Claim 8 (depends on 1)

The flanged inner ring of claim 1, further comprising an axially outer flange portion configured to be connected to a wheel.

### Claim 9 (depends on 1)

The flanged inner ring of claim 1, further comprising at least one raceway on an axially outer surface of the flanged inner ring.

### Claim 10 (depends on 1)

The flanged inner ring of claim 1, further comprising a shoulder formed on an axially outer surface of the flanged inner ring, wherein the rolling edge is configured to preload the radially inner ring against the shoulder.

### Claim 11

A flanged inner ring, comprising:
a rolling edge configured to axially preloaded a radially inner ring of a rolling bearing after being plastically deformed,
wherein, the rolling edge includes a diameter of increasing variable size along an axis (X) of symmetry of the flanged inner ring and, wherein the increasing variable size increases along the axis (X) in a direction away from the radially inner ring,
wherein
the rolling edge includes an outer preloading surface configured such that in a deformed configuration the outer preloading surface is arranged against the radially inner ring and such that in an undeformed configuration the outer preloading surface is inclined away from the axis (X) of symmetry of the flanged inner ring;
wherein the rolling edge further includes an inner cylindrical surface coaxial with the axis (X) of symmetry.

### Claim 12 (depends on 11)

The flanged inner ring of claim 11, wherein the outer preloading surface is axially aligned with a radially outer surface for mounting the radially inner ring, and is connected to the radially outer surface via a connecting surface, the outer preloading surface includes a diameter smaller in size than a diameter of the radially outer surface at least along the connecting surface.

### Claim 13 (depends on 12)

The flanged inner ring of claim 12, wherein the outer preloading surface is a conical surface, and the rolling edge includes a radial thickness which is gradually thicker along the axis (X) of symmetry in the direction away from the inner ring.

### Claim 14 (depends on 11)

The flanged inner ring of claim 11, wherein the rolling edge further includes an annular connecting surface connecting the outer preloading surface and the inner cylindrical surface.

### Claim 15 (depends on 14)

The flanged inner ring of claim 14, wherein the annular connecting surface extends in a direction transverse to the axis (X) of symmetry.

### Claim 16 (depends on 15)

The flanged inner ring of claim 15, wherein the annular connecting surface is chamfered towards the outer preloading surface.

### Claim 17 (depends on 11)

The flanged inner ring of claim 11, further comprising an axially outer flange portion configured to be connected to a wheel.

### Claim 18 (depends on 11)

The flanged inner ring of claim 11, further comprising at least one raceway on an axially outer surface of the flanged inner ring.

### Claim 19 (depends on 11)

The flanged inner ring of claim 11, further comprising a shoulder formed on an axially outer surface of the flanged inner ring, wherein the rolling edge is configured to preload the radially inner ring against the shoulder.

### Claim 20

A flanged inner ring, comprising:
a rolling edge configured to axially preloaded a radially inner ring of a rolling bearing after being plastically deformed,
wherein,
the rolling edge includes a diameter of increasing variable size along an axis (X) of symmetry of the flanged inner ring and, wherein the increasing variable size increases along the axis (X) in a direction away from the radially inner ring,
wherein the rolling edge includes an outer preloading surface configured such that in a deformed configuration the outer preloading surface is arranged against the radially inner ring and such that in an undeformed configuration the outer preloading surface is inclined away from the axis (X) of symmetry of the flanged inner ring;
wherein the rolling edge further includes an inner cylindrical surface coaxial with the axis (X) of symmetry, and further wherein the rolling edge further includes an annular connecting surface connecting the outer preloading surface and the inner cylindrical surface, the annular connecting surface extends in a direction transverse to the axis (X) of symmetry, and the annular connecting surface is chamfered towards the outer preloading surface.
