# US 4,398,776 A · Roller bearing with annular retaining disks

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- Number: US 4,398,776 A
- Document ID: US4398776A
- Status: Granted
- Kind: A
- Application number: 06/322,542
- Filed: 1981-11-18
- Granted: 1983-08-16
- Earliest claimed: 1980-11-24
- Assignees: Fag Kugelfischer Georg Schafer & Co.
- Inventors: Hans-Dieter Kutemeier
- Web page: https://patentgrep.com/patent/US4398776A

## CPC

- 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}
- B21B 31/07: Adaptation of roll {neck} bearings (bearings in general F16C)
- F16C 13/006: {Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one}
- F16C 19/28: with two or more rows of rollers
- F16C 2322/12: Rolling apparatus, e.g. rolling stands, rolls
- Y10S 384/903: Retaining ring
- Y10S 384/906: Antirotation key
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- B21B: ROLLING OF METAL (auxiliary operations used in connection with metal-working operations covered in B21, see B21C; bending by rolling B21D; manufacture of particular objects, e.g. screws, wheels, rings, barrels, balls, by rolling B21H; pressure welding by means of a rolling mill B23K20/04)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A journal bearing with several rows of rollers, separated by one or more spacing rings, has an inner and an outer race defining between them an annular clearance which is laterally bounded by a first pair of annular disks fixedly secured to the inner race and a second pair of annular disks removably fastened to the outer race by a bayonet coupling. A spring-loaded bolt inserted in a bore on each end face of the outer race, between bayonet lugs thereof, snaps into a depression of the corresponding boundary disk when the latter has been rotated into its engaged position. A partly uncovered end of the bolt allows its repression by a suitable tool to release that disk for the purpose of disassembly.

## Claims

### Claim 1

In a journal bearing wherein an inner member with a cylindrical outer peripheral surface is coaxially surrounded by an outer member with a cylindrical inner peripheral surface, said peripheral surface being separated by an annular clearance occupied by a multiplicity of rotary bodies holding said members apart while enabling relative rotation thereof about their common axis, said clearance being bounded on at least one end partly by a first annular disk rigid with one of said members and partly by a second annular disk coplanar with said first disk, the other of said members having at least one end face with peripherally spaced retaining lugs forming a bayonet coupling with coacting lugs of said second disk for holding same in a locking position on said other of said members,
the improvement wherein said other of said members is provided with a spring-loaded detent received in an axially extending bore of said end face between two of said retaining lugs and in confronting relationship with a marginal zone of said second disk, said marginal zone being formed with a depression receiving said detent in said locking position for preventing a detachment of said second disk.

### Claim 2 (depends on 1)

A journal bearing as defined in claim 1 wherein said marginal zone overlies only part of a confronting end of said detent for facilitating manual depression of the latter against the associated spring force to release said second disk from said locking position.

### Claim 3 (depends on 2)

A journal bearing as defined in claim 2 wherein said detent is a cylindrical pin and said depression is a part-circular notch.

### Claim 4 (depends on 1)

A journal bearing as defined in claim 1 wherein said first disk is provided with a resilient marginal strip approaching said second disk.

### Claim 5 (depends on 1)

A journal bearing as defined in claim 1 wherein said rotary bodies are cylindrical rollers disposed in a plurality of parallel rows, said rows being separated by spacing means rigid with said one of said members.

### Claim 6 (depends on 1, 2, 3, 4, 5)

A journal bearing as defined in claim 1, 2, 3, 4 or 5 wherein said other of said members is said outer member.