US3848938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing and bearing seal
Assignee: Timken US LLC
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Filing: 1973-02-28
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Granted: 1974-11-19
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Expires: 1993-02-28
Abstract
Abstract A bearing is disclosed comprising two relatively movable parts with one of them having an arcuate outer surface. A seal of special construction is used to entrap lubricant and keep out water and dirt. The seal has three sealing edges. Each of the three sealing edges contacts the movable member having the arcuate outer surface, providing two voids to entrap lubricant which acts to lubricate the sealing edges and provides additional sealing.
Inventors
- 👤 L Stella
- 👤 A Sarbello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:16
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; F16C33/00; F16C33/72; F16C33/74; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
132 words
In a sealed, self-aligning bearing, a ball having an outer surface which is a portion of a sphere, a socket having a inner surface cooperating with the spherical outer surface portion of the ball, the socket having at each end an annular groove directed toward the ball forming a seal-receiving recess, and an elastically deformable integral snap-sealing ring filling the space between each seal-receiving recess and the ball, and adapted to enter and lock itself in said space by elastic deflection, each sealing ring having three separate axiallyspaced points, each in contact with the spherical outer surface of the ball, thereby providing two spaces between the inside of the sealing ring and the outside of the spherical ball, the outermost point being a surface of a elastically deflected cantilevered axially extending lip.
Claim 2
Dependent Claim
132 words
In a sealed, self-aligning bearing, a ball having an outer surface which is a portion of a sphere, a socket having a inner surface cooperating with the spherical outer surface portion of the ball, the socket having at each end an annular groove directed toward the ball forming a seal-receiving recess, and an elastically deformable integral snap-sealing ring filling the space between each seal-receiving recess and the ball, and adapted to enter and lock itself in said space by elastic deflection, each sealing ring having three separate axiallyspaced points, each in contact with the spherical outer surface of the ball, thereby providing two spaces between the inside of the sealing ring and the outside of the spherical ball, the outermost point being a surface of a elastically deflected cantilevered axially extending lip.
Claim 3
Dependent Claim
115 words
A sealed self-aligning bearing in accordance with Claim 1 wherein the said three separate axially spaced points of said elastically deformable integral snap-sealing ring, in relaxed position, comprises: an innermost contact point formed by the intersection of an axial edge and a radial edge of the sealing ring; a second contact point formed by the intersection of an axial and radial edge of the sealing ring, said second contact point being axially and radially spaced from the first contact point; and a third contact point formed by the intersection of an axial edge and radial edge of the sealing ring, said third contact point being axially and radially spaced from the other two contact points.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |