US3762784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller assembly
Assignee: WEBB CO J
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Filing: 1972-06-19
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Granted: 1973-10-02
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Expires: 1992-06-19
Abstract
Abstract A roller assembly consisting of a roller element rotatably mounted on a pair of tapered roller bearings, each bearing being in turn supported on one of a pair of bearing retainers held in axially spaced assembled relationship by a spacer member which also defines a minimum axial separation between the inner, or cone elements of the roller bearings so that the roller assembly can be securely mounted on an axle passing through the bearing retainers without effecting a proper clearance adjustment of the roller bearings. The spacer is made as a longitudinally slotted tube and is expanded in assembly into gripping engagement with cylindrical surfaces on the pair of bearing retainers, which surfaces also support the bearing cones; and, the slot in the tube also provides communication with a lubricant reservoir formed between the tube and the inner diameter of the roller element and extending between the pair of roller bearings.
Inventors
- 👤 M Pachuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:26
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/54; B; B65; B65G; B65G39/00; B65G39/02; B65G39/09; F16C13/00; F16C19/546; F16C19/547; F16C19/548; F16C33/00; F16C33/30; F16C33/66; F16C33/6603; F16C33/6607; F16C33/6622; F16C35/00; F16C35/04; F16C35/06; F16C35/061
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
202 words
A roller assembly adapted to be mounted on an axle and having a rotatable element supported by a pair of tapered roller bearings, each roller bearing including a cone, a cup and a plurality of tapered rollers; wherein: the rotatable element is provided with an axial bore and a counterbored recess at each end thereof defining a pair of oppositely facing shoulders, each recess receiving the cup of one of the roller bearings, and the recess shoulders defining the axial spacing between the bearing cups; a pair of bearing cone retainers each have an axle mounting bore and a concentric cylindrical outer surface receiving the cone of one of the roller bearings against a radial abutment surface, with the radial abutment surfaces of the pair of bearing cone retainers facing each other; a cylindrical tubular spacer member is mounted on the cylindrical outer surfaces of the pair of bearing cone retainers, the spacer member abutting and extending between the cones of the roller bearings to maintain a minimum axial separation therebetween and between the bearing cone retainers; and, the spacer member is secured to the pair of bearing cone retainers whereby the spacer member holds the bearing cone retainers in assembled relationship.
Claim 2
Dependent Claim
202 words
A roller assembly adapted to be mounted on an axle and having a rotatable element supported by a pair of tapered roller bearings, each roller bearing including a cone, a cup and a plurality of tapered rollers; wherein: the rotatable element is provided with an axial bore and a counterbored recess at each end thereof defining a pair of oppositely facing shoulders, each recess receiving the cup of one of the roller bearings, and the recess shoulders defining the axial spacing between the bearing cups; a pair of bearing cone retainers each have an axle mounting bore and a concentric cylindrical outer surface receiving the cone of one of the roller bearings against a radial abutment surface, with the radial abutment surfaces of the pair of bearing cone retainers facing each other; a cylindrical tubular spacer member is mounted on the cylindrical outer surfaces of the pair of bearing cone retainers, the spacer member abutting and extending between the cones of the roller bearings to maintain a minimum axial separation therebetween and between the bearing cone retainers; and, the spacer member is secured to the pair of bearing cone retainers whereby the spacer member holds the bearing cone retainers in assembled relationship.
Claim 3
Dependent Claim
39 words
A roller assembly according to claim 1 wherein the tubular spacer member is separated radially from the internal surface of the axial bore of the rotatable element to provide an annular lubricant reservoir extending axially between the roller bearings.
Claim 4
Dependent Claim
21 words
A roller assembly according to claim 2 wherein the tubular spacer member is provided with a passage communicating with said reservoir.
Claim 5
Dependent Claim
30 words
A roller assembly according to claim 3 wherein the passage is formed by a slot cut in the side wall of the tubular spacer member and extending from end-to-end thereof.
Claim 6
Dependent Claim
60 words
A roller assembly according to claim 4 wherein the tubular spacer member is formed with an internal diameter less than the diameter of the cylindrical outer surface of the bearing cone retainers, the slot permitting the tubular spacer member to be expanded and secured to the pair of bearing cone retainers by gripping engagement with the cylindrical outer surfaces thereof.
Claim 7
Dependent Claim
24 words
A roller assembly according to claim 1 wherein the spacer member is secured to the pair of bearing cone retainers by frictional engagement therebetween.
Claim 8
Dependent Claim
63 words
A roller assembly according to claim 6 wherein the tubular spacer member is formed with a slot extending from end-to-end through the side wall thereof and with an internal diameter less than the diameter of the cylindrical outer surfaces of the bearing cone retainers, the slot permitting the tubular spacer member to be expanded into frictional gripping engagement with said cylindrical outer surfaces.
Claim 9
Dependent Claim
68 words
A roller assembly according to claim 7 wherein the tubular spacer member is separated radially from the internal surface of the bore of the rotatable element to provide an annular, lubricant reservoir extending axially between the roller bearings, with the slot in the tubular spacer member providing a passage communicating with the reservoir and with a lubricant passage in the axle on which the roller assembly is mounted.
Claim 10
Dependent Claim
84 words
A roller assembly according to claim 1 further comprising a pair of bearing seals each having an annular backing member adapted to be press fitted within one of the recesses of the rotatable element and a resilient member secured to the backing member, the resilient member having a pair of sealing projections extending radially inwardly, one projection being adapted to make sealing contact with the adjacent bearing cone and the other projection being adapted to make sealing contact with the adjacent bearing cone retainer.
Claim 11
Dependent Claim
36 words
A roller assembly according to claim 9 further including a cap adapted to be positioned on the end of one of the bearing cone retainers and overlapping the rotatable element radially outward from the adjacent bearing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |