# US 11,306,779 B2 · Method for producing components of a tilting-pad bearing, and tilting-pad bearing

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- Number: US 11,306,779 B2
- Document ID: US11306779B2
- Status: Granted
- Kind: B2
- Application number: 16/627,401
- Filed: 2018-06-13
- Published: 2021-03-25
- Granted: 2022-04-19
- Earliest claimed: 2017-06-29
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Jochen Doehring; Andreas Vogt; Michael Mayer
- Web page: https://patentgrep.com/patent/US11306779B2

## CPC

- F16C 33/14: Special methods of manufacture; Running-in
- F16C 17/03: with tiltably-supported segments, e.g. Michell bearings {(hydrostatic bearings with tiltably supported bearing pads F16C32/0666; made from a plurality of rods F16C33/26; with flexible leaves F16C17/024; hydrodynamic bearings with chambers F16C33/1075)}
- F16C 27/02: Sliding-contact bearings
- F16C 35/02: in the case of sliding-contact bearings
- F16C 43/02: Assembling sliding-contact bearings
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

## Abstract

The invention relates to a method for producing components of a tilting-pad bearing (10; 10a), wherein: the tilting-pad bearing (10; 10a) has an outer ring (12; 12a) and multiple tilting pads (18; 18a) preferably arranged at regular angular intervals about a longitudinal axis (3; 46) of the outer ring (12; 12a); the tilting pads (18; 8a) are pivotably mounted with an outer surface (20; 20a) about a pitch line (26; 26a) on an inner surface (16; 16a) of the outer ring (12; 12a); and a blank (30; 30a) in the form a cylinder portion (14) having a constant wall thickness is used to produce the tilting pads (18) from a tilting pad ring (42) or to produce the outer ring (12a). The invention is characterised in that: a radial force (FR) acting in the direction of the longitudinal axis (3; 46) is applied to the cylinder portion (14) at multiple clamping points (33; 33a, 34; 34a, 35; 35a) in the region of its outer periphery (32; 32a), said radial forces (FR) elastically deforming the cylinder portion (14); an inner bore (38; 38a) having a round cross-section is subsequently produced on the inner surface (16; 16a) of the elastically deformed cylinder portion (14); and subsequently the radial clamping of the cylinder portion (14) is stopped.

## Claims

### Claim 1

A method for producing components of a tilting-pad bearing (10; 10a), wherein the tilting-pad bearing (10; 10a) has an outer race (12; 12a) and a plurality of tilting pads (18; 18a), the method comprising:
wherein the tilting pads (18; 18a) by way of an external face (20; 20a) are disposed so as to be pivotable about a rolling line (26; 26a) on an internal face (16; 16a) of the outer race (12; 12a);
wherein a blank (30; 30a) in the form of a cylindrical portion (14) having a consistent wall thickness is used for producing the tilting pads (18) from a tilting-pad race (42);
wherein the cylindrical portion (14) in the region of the external circumference (32; 32a) thereof at a plurality of clamping locations (33; 33a, 34; 34a, 35; 35a) is in each case impinged with a radial force (FR) acting in the direction of the longitudinal axis (3; 46);
wherein the radial forces (FR) cause an elastic deformation of the cylindrical portion (14);
wherein an internal bore (38, 38a) having a round cross section is subsequently generated on the internal face (16; 16a) on the cylindrical portion (14) in the elastically deformed state; and
wherein the radial clamping of the cylindrical portion (14) is subsequently cancelled.

### Claim 2 (depends on 1)

The method as claimed in claim 1, characterized in that the number of the clamping locations (33, 34, 35) at which the blank (30) is impinged with the radial forces (FR) corresponds to the number of tilting pads (18) which are configured from the blank (30) by radially separating the blank (30) in the region of separation locations (44, 45).

### Claim 3 (depends on 1)

The method as claimed in claim 1, characterized in that the clamping locations (33; 33a, 34; 34a, 35; 35a) at which the blank (30; 30a) is force-impinged with the radial forces (FR) are disposed at uniform angular spacings about a longitudinal axis (37) of the blank (30; 30a).

### Claim 4 (depends on 1)

A method for producing a tilting-pad bearing (10; 10a) having an outer race (12a) and tilting pads (18), wherein the tilting pads (18) are produced by the method for
producing components of the tilting-pad bearing (10; 10a) as claimed in claim 1.

### Claim 5 (depends on 4)

The method as claimed in claim 4, characterized in that the tilting pads (18) are configured from a cylindrical tubular portion having a consistent internal diameter (Di) and external diameter (Da).

### Claim 6 (depends on 4)

The method as claimed in claim 4, wherein the outer race (12) is configured as a cylindrical portion (14) having a consistent internal diameter (Di) and external diameter (Da).

### Claim 7 (depends on 4)

The method as claimed in claim 4, wherein the tilting pads (18; 18a) are disposed at equal angular spacings about a longitudinal axis (3; 46) of the outer race (12; 12a).

### Claim 8

A method for producing a tilting-pad bearing (10; 10a) having an outer race (12; 12a) and a plurality of tilting pads (18; 18a), the method comprising:
wherein the tilting pads (18; 18a) by way of an external face (20; 20a) are disposed so as to be pivotable about a rolling line (26; 26a) on an internal face (16; 16a) of the outer race (12; 12a);
wherein a first blank (30; 30a) in the form of a cylindrical portion (14) having a consistent wall thickness is used for producing the tilting pads (18) from a tilting-pad race (42) and a second blank (30; 30a) in the form of a cylindrical portion (14) having a consistent wall thickness is used for producing the outer race (12a);
wherein, for each of the first and second blanks:
the cylindrical portion (14) in the region of the external circumference (32; 32a) thereof at a plurality of clamping locations (33; 33a, 34; 34a, 35; 35a) is in each case impinged with a radial force (FR) acting in the direction of the longitudinal axis (3; 46);
the radial forces (FR) cause an elastic deformation of the cylindrical portion (14);
an internal bore (38, 38a) having a round cross section is subsequently generated on the internal face (16; 16a) on the cylindrical portion (14) in the elastically deformed state; and
the radial clamping of the cylindrical portion (14) is subsequently cancelled; and
wherein the outer race (12; 12a) and the plurality of tilting pads (18; 18a) are assembled into the tilting-pad bearing (10; 10a).
