US4116500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elongated machine element spherical end
Assignee: SKF GmbH
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Filing: 1977-07-05
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Granted: 1978-09-26
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Expires: 1997-07-05
Abstract
Abstract A machine element such as a bearing, has a shaft with a spherical end. The spherical end is formed by a metal ball, such as a ball bearing, the ball being held in a hollow metal cylindrical casing. The casing has an inner diameter substantially equal to the outer diameter of the shaft, and is rigidly fit, for example, by press fitting, over the end of the shaft.
Inventors
- 👤 Wolfgang Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:58
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/04; F16C17/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49648
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
61 words
In a machine element having a shaft with a spherical end; the improvement wherein said end comprises a spherical metal ball, said machine element further comprising a hollow metal cylindrical shell, said ball being rigidly held in and projecting from one end of said shell, the other end of said shell being rigidly coaxially fit onto the end of said shaft.
Claim 2
Dependent Claim
61 words
In a machine element having a shaft with a spherical end; the improvement wherein said end comprises a spherical metal ball, said machine element further comprising a hollow metal cylindrical shell, said ball being rigidly held in and projecting from one end of said shell, the other end of said shell being rigidly coaxially fit onto the end of said shaft.
Claim 3
Dependent Claim
30 words
The machine element of claim 1, wherein said ball has a diameter at least equal to the inner diameter of said shell, said shell being press fit onto said shaft.
Claim 4
Dependent Claim
26 words
The machine element of claim 1, wherein said ball has a diameter substantially equal to the average of the inner and outer diameters of said shell.
Claim 5
Dependent Claim
13 words
The machine element of claim 1, wherein said ball comprises a ball bearing.
Claim 6
Dependent Claim
20 words
The machine element of claim 1, wherein said shell comprises a bearing ring of a needle or cylindrical roller bearing.
Claim 7
Dependent Claim
21 words
The machine element of claim 1, wherein said shaft comprises a needle or roller of a needle or cylindrical roller bearing.
Claim 8
Dependent Claim
12 words
The machine element of claim 1, wherein said ball has spiral grooves.
Claim 9
Dependent Claim
62 words
The machine element of claim 1, wherein said ball has a diameter at least equal to the inner diameter of said shell, and projects from one end of said shell, said ball being welded to said shell, said shell being press fit onto said shaft, said ball, shell and shaft comprising prefabricated bearing elements, whereby said machine element has highly precise dimensions.
Claim 10
Dependent Claim
86 words
A bearing structure comprising a ball, a shell, said ball having a diameter at least equal to the inner diameter of said shell, said ball projecting from one end of said shell and being rigidly held therein, a shaft, the other end of said shell being press fit to said shaft and held rigidly thereon, said shaft extending only partways through said shell, and a bearing cup fit over said ball and engaging the spherical surfaces thereof, whereby said bearing cup and ball are relatively movable.
Claim 11
Dependent Claim
86 words
A bearing structure comprising a ball, a shell, said ball having a diameter at least equal to the inner diameter of said shell, said ball projecting from one end of said shell and being rigidly held therein, a shaft, the other end of said shell being press fit to said shaft and held rigidly thereon, said shaft extending only partways through said shell, and a bearing cup fit over said ball and engaging the spherical surfaces thereof, whereby said bearing cup and ball are relatively movable.
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) | 1981-09-25 | 1982-03-27 | 1982-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-25 | 1986-03-27 | 1986-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-25 | 1990-03-27 | 1990-09-26 | $7700.00 | Window Closed / Lapsed |