US3893735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient sealing means for self-adjusting bearings
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1973-09-06
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Granted: 1975-07-08
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Expires: 1993-09-06
Abstract
Abstract A spherically adjustable bearing or an adjustable slide bearing is provided having a body in which an inner and outer race ring adapted to journal a shaft is mounted. The bearing is provided with resilient sealing means for axially closing the bearing which comprises a pair of sealing discs, one of which is axially movable with respect to the other. The discs are provided with cooperating surfaces acting in conjunction with each other to provide an adjustably movable seal, a locking ring is provided to support the seal means in the bearing and spring means is interposed between the locking ring and the movable disc to normally bias the movable disc with respect to the other disc. The locating ring and the movable disc are provided with axially overlapping members which form an adjustable seal movable in response to the axial or angular adjustment of the bearing itself.
Inventors
- 👤 Adolf Brenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:43
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/74; F16C23/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
A spherically adjustable bearing having a body, an inner and outer race ring mounted therein, sealing means for axially closing one end of said bearing comprising a pair of concentric sealing discs, one of which being axially movable with respect to the other, said discs having cooperating surfaces and means acting in conjunction with said surfaces to provide a first seal therebetween, said movable sealing disc having an axial flange extending away from the one end of said bearing, a locking ring for supporting said movable sealing disc, said locking ring being secured to said body and having an axial flange extending adjacent the axial flange of said movable disc, spring means interposed between said locking ring and said movable disc to normally bias said movable disc with respect to the other disc, and means interposed between the extending flanges of said locking ring and said movable disc to form a second seal for said movable disc.
Claim 2
Dependent Claim
157 words
A spherically adjustable bearing having a body, an inner and outer race ring mounted therein, sealing means for axially closing one end of said bearing comprising a pair of concentric sealing discs, one of which being axially movable with respect to the other, said discs having cooperating surfaces and means acting in conjunction with said surfaces to provide a first seal therebetween, said movable sealing disc having an axial flange extending away from the one end of said bearing, a locking ring for supporting said movable sealing disc, said locking ring being secured to said body and having an axial flange extending adjacent the axial flange of said movable disc, spring means interposed between said locking ring and said movable disc to normally bias said movable disc with respect to the other disc, and means interposed between the extending flanges of said locking ring and said movable disc to form a second seal for said movable disc.
Claim 3
Dependent Claim
67 words
The bearing according to claim 1 wherein said locking ring is L-shaped in cross section and has a radially extending portion secured to said body and a cylindrical portion forming the axial flange, the axial flange of said movable disc has a projectng cylindrical surface, said cylindrical portion of said locking ring and the projecting cylindrical surface of said movable disc overlapping each other in cooperative relationship.
Claim 4
Dependent Claim
43 words
The bearing according to claim 2 wherein the overlap of said projecting cylindrical surface of said movable disc and the cylindrical portion of said L-shaped locking ring is equal in length at least to the extent said movable sealing disc is axially movable.
Claim 5
Dependent Claim
26 words
The bearing according to claim 1 including a compressive annular seal ring inserted between the adjacent flanges of the locking ring and the movable sealing disc.
Claim 6
Dependent Claim
22 words
The bearing according to claim 1 including a compressive annular sealing ring inserted between the cooperating surfaces of the concentric sealing discs.
Claim 7
Dependent Claim
49 words
The bearing according to claim 1 including at least one axial through bore formed in said movable disc to compensate for changes in volume between the movable sealing disc and the bearing and between the movable sealing disc and the locking ring created on the movement of said disc.
Claim 8
Dependent Claim
45 words
The bearing according to claim 1 wherein said spring means are distributed about the periphery of said movable sealing disc, each being provided with a guide bolt fixed to said movable disc and inserted through said spring to support said movable sealing disc against rotation.
References Cited (Backward Citations)
US1787459A
Cited
US2667388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |