Patent US3722968A successfully refreshed from Google Patents.
US3722968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel-bearing assembly
Assignee: NAT BEARINGS CO
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Filing: 1967-06-29
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Granted: 1973-03-27
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Expires: 1987-06-29
Abstract
Abstract A ball bearing-wheel assembly has an outer nylon tire partially enclosing a stamped metal cup which serves as the outer race for the balls. The nylon tire has the inner surface of its peripheral wall adapted to securely engage the peripheral wall of the stamped metal cup, thereby retaining the balls between the inner and outer races and the base portion of the tire.
Inventors
- 👤 A Bomberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:36
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/60; F16C13/00; F16C13/006; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C33/72; F16C33/76; F16C33/767
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
201 words
A ball bearing-wheel assembly comprising: a hub having a grooved outer surface which serves as an inner bearing race; a stamped metal cup having a centrally apertured radial wall and an annular-shaped peripheral wall arranged substantially perpendicular to each other, the peripheral wall of the cup serving as an outer bearing race; a plurality of anti-friction balls positioned between the inner and outer bearing races; an annular cup-shaped tire member of plastic material having a radial flange and a peripheral tread arranged substantially perpendicular to each other, an inner peripheral surface of the tire member dimensioned to form a secure frictional engagement with the peripheral wall of the stamped metal cup, the bearing assembly being arranged so that the inner peripheral surface of the tire member encloses the peripheral wall of the stamped metal cup, the balls being retained in bearing contact with the inner surface of the peripheral wall of the outer race formed by the stamped metal cup and the inner race by means of the radial wall of the cup and the tire radial flange located on opposite sides of the balls, whereby the assembly is both quiet and smooth in operation and capable of carrying heavy loads.
Claim 2
Dependent Claim
201 words
A ball bearing-wheel assembly comprising: a hub having a grooved outer surface which serves as an inner bearing race; a stamped metal cup having a centrally apertured radial wall and an annular-shaped peripheral wall arranged substantially perpendicular to each other, the peripheral wall of the cup serving as an outer bearing race; a plurality of anti-friction balls positioned between the inner and outer bearing races; an annular cup-shaped tire member of plastic material having a radial flange and a peripheral tread arranged substantially perpendicular to each other, an inner peripheral surface of the tire member dimensioned to form a secure frictional engagement with the peripheral wall of the stamped metal cup, the bearing assembly being arranged so that the inner peripheral surface of the tire member encloses the peripheral wall of the stamped metal cup, the balls being retained in bearing contact with the inner surface of the peripheral wall of the outer race formed by the stamped metal cup and the inner race by means of the radial wall of the cup and the tire radial flange located on opposite sides of the balls, whereby the assembly is both quiet and smooth in operation and capable of carrying heavy loads.
Claim 3
Dependent Claim
44 words
A ball bearing-wheel assembly as described in claim 1 wherein the central hub includes means to fasten the assembly to a support structure by riveting, said means comprising a reduced diameter portion extending beyond a plane defined by a lateral face of the assembly.
Claim 4
Dependent Claim
53 words
A ball bearing-wheel assembly as described in claim 1 wherein the tread wall of the tire has a grooved inner surface and an integral overlapping lip portion which cooperates with the peripheral wall of the stamped metal cup, thereby providing secure frictional engagement between the peripheral wall of the cup and the tire.
Claim 5
Dependent Claim
48 words
A ball bearing-wheel assembly as described in claim 3 wherein the peripheral wall of the stamped metal cup has a rounded corner along an outside edge thereof to facilitate non-abrasive passage of said cup against an angled corner along the innermost edge of the lip portion during assembly.
Claim 6
Dependent Claim
58 words
A ball bearing wheel assembly as in claim 1 wherein the inner surface of the peripheral tread of the annular cup shaped plastic tire member has an annular groove therein which cooperates with a portion of the outer surface of the peripheral wall of the stamped metal cup to hold the metal cup in the plastic tire member.
Claim 7
Dependent Claim
160 words
A ball bearing assembly comprising: a. an inner ball race with a ball receiving groove in the outer peripheral thereof, b. a plurality of bearing balls disposed in the groove of the inner race, c. an outer shell of plastic material coaxial with the inner race and having an opening to accommodate the inner race, the outer shell including an integral tire like peripheral flange and a disc like radially extending ball bearing retaining wall so that the shell is generally L-shaped in section, and an annular race retaining groove in the inner surface of the shell flange, d. an annular outer race of hard metal including a portion on the outer periphery thereof retained in the retaining groove of the shell and an inner surface portion retaining the bearing balls radially and axially, the inner surface portion retaining the balls axially being positioned on the side of the balls opposite the disc-like ball bearing retaining wall of the shell.
Claim 8
Dependent Claim
160 words
A ball bearing assembly comprising: a. an inner ball race with a ball receiving groove in the outer peripheral thereof, b. a plurality of bearing balls disposed in the groove of the inner race, c. an outer shell of plastic material coaxial with the inner race and having an opening to accommodate the inner race, the outer shell including an integral tire like peripheral flange and a disc like radially extending ball bearing retaining wall so that the shell is generally L-shaped in section, and an annular race retaining groove in the inner surface of the shell flange, d. an annular outer race of hard metal including a portion on the outer periphery thereof retained in the retaining groove of the shell and an inner surface portion retaining the bearing balls radially and axially, the inner surface portion retaining the balls axially being positioned on the side of the balls opposite the disc-like ball bearing retaining wall of the shell.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |