# US 5,707,153 A · Bearing assembly with a centering device and a flange

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- Number: US 5,707,153 A
- Document ID: US5707153A
- Status: Granted
- Kind: A
- Application number: 08/718,346
- Filed: 1996-09-30
- Granted: 1998-01-13
- Earliest claimed: 1994-05-09
- Assignees: INA Walzlager Schaeffler KG
- Inventors: Wolfgang Steinberger; Manfred Winkler
- Web page: https://patentgrep.com/patent/US5707153A

## CPC

- F16H 63/30: Constructional features of the final output mechanisms
- F16C 29/04: Ball or roller bearings
- F16C 31/04: Ball or roller bearings
- F16C 33/588: {Races of sheet metal}
- F16C 35/045: {with a radial flange to mount the housing}
- F16H 2063/3076: {Selector shaft assembly, e.g. supporting, assembly or manufacturing of selector or shift shafts; Special details thereof}
- Y10T 74/20085: Restriction of shift, gear selection, or gear engagement
- F16H: GEARING
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A bearing unit for linearly moving selector shafts in a toothed-wheel gearbox with rows of beating balls in a cage rolling on the one hand on an inner surface of a sleeve permanently fitted to the gearbox housing and on the other hand on the gear change shaft. The sleeve has a flange at one end by which the sleeve can be secured to a gearbox housing in such a way that it extends freely into the gearbox housing over its entire length.

## Claims

### Claim 1

A bearing assembly arrangement for sliding selector shafts in a transmission casing (16) of a sliding multi-gear transmission comprising a rolling bearing (5) having rows of bearing balls arranged in a cage (6) for rolling at least indirectly on a selector shaft and on an inner peripheral surface of a bushing (3) which is rigidly connected to the transmission casing (16), characterized in that on one end of the bushing (3, 3a, 3b), there is arranged a flange (4, 4a, 4b) by which the bushing (3, 3a, 3b) is fixed in or on the transmission casing (16) so that an entire, or almost entire length of the bushing (3, 3a, 3b) extends freely, and an end stop for the rolling bearing (5) is integrally formed on an end of the bushing (3, 3a, 3b) remote from the flange (4, 4a, 4b).

### Claim 2 (depends on 1)

A bearing assembly arrangement of claim 1 wherein the flange (4) comprises a centering device (11) oriented towards the transmission casing (16), and the bushing (3) is a directional bushing which starts from the flange (4).

### Claim 3 (depends on 2)

A bearing assembly arrangement of claim 2 wherein the end stop formed on the bushing (3) is configured as a step (21).

### Claim 4 (depends on 2)

A bearing assembly arrangement of claim 2 wherein the flange (4b) and the bushing (3b) are made together as a single integrally formed component by a non-chipping procedure.

### Claim 5 (depends on 2)

A bearing assembly arrangement of claim 2 wherein the flange (4a) and the bushing (3b) are undetachably connected to each other by a welded or soldered joint.

### Claim 6 (depends on 1)

A bearing assembly arrangement of claim 1 wherein the flange (4) is configured so as to bear by an even surface against the transmission casing (16).

### Claim 7 (depends on 1)

A bearing assembly arrangement of claim 1 wherein the rolling bearing (5) surrounds the shaft (2) through an angle of about 180.degree. and is arranged secure against rotation in the bushing (3).

### Claim 8 (depends on 7)

A bearing assembly arrangement of claim 7 wherein the rolling bearing (5) comprises an anti-rotation device (9) constituted by a pin (7) arranged on the cage (6) of the rolling bearing (5) and guided in an axial groove (8) of the bushing (3).

### Claim 9 (depends on 7)

A bearing assembly arrangement of claim 7 wherein an anti-rotation device (9a) is constituted by rolling elements of the rolling bearing (5a) in the form of balls which are guided in at least one longitudinal groove (14) of the bushing (3).

### Claim 10 (depends on 7)

A bearing assembly arrangement of claim 7 wherein an anti-rotation device (9b) is constituted exclusively by end rolling elements (20) or by the cage (6) of the rolling bearing (5b) which bear against a shoulder (15) of the bushing (3).

### Claim 11 (depends on 1)

A bearing assembly arrangement of claim 1 wherein the bearing assembly (1) is connected to a locking device which is connected to the shaft (2).