Patent US3884331A successfully refreshed from Google Patents.
US3884331A
Expired / Lapsed
US
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Bearing unit
Assignee: SKF Industrial Trading and Development Co BV
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Filing: 1973-11-01
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Granted: 1975-05-20
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Expires: 1993-11-01
Abstract
Abstract A bearing unit for a wheel or similar rotary element comprising a brake device provided for example with a brake disc and a bearing having an outer and an inner ring between which rolling elements in two rows are arranged, the rings being provided with a flange to which parts of the wheel or such mechanism can be attached, characterized in that at least the inner ring, the flange and the brake device part form a single homogeneous unit, the ring forming the running surface of the two rows of rolling elements which center a cage.
Inventors
- 👤 Sture L Asberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:15
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; B; B60; B60B; B60B27/00; B60B27/0005; F16C; F16C19/00; F16C19/02; F16C19/14; F16C19/18; F16C19/181; F16C19/183; F16C19/184; F16C19/187; F16C33/00; F16C33/30; F16C33/58; F16C33/588; F16C33/72; F16C33/76; F16C33/78; F16C33/7886; F16D65/10; F16C2326/00; F16C2326/01; F16C2326/02; F16D2065/13; F16D2065/1304; F16D2065/1308; F16D2065/1336; F16D2065/134; F16D2065/138; F16D2065/1392; F16D2250/00; F16D2250/0023
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
129 words
A bearing unit and braking device for a rotary element comprising an inner ring having as an integral one piece structure a two row bearing surface and a radially outwardly extending flange forming a braking means, said radially extending flange having an upwardly extending portion forming said braking means axially displaced from said two row bearing surface by an intermediate portion of said radially extending flange spacing said two row bearing surface from said upwardly extending portion such that the boundary plane of said braking means is axially displaced from the entire area defining said two row bearing surface, a plurality of roller elements, and an outer ring having a two row bearing surface positioned about said inner ring bearing surface with two rows of said roller elements therebetween.
Claim 2
Dependent Claim
129 words
A bearing unit and braking device for a rotary element comprising an inner ring having as an integral one piece structure a two row bearing surface and a radially outwardly extending flange forming a braking means, said radially extending flange having an upwardly extending portion forming said braking means axially displaced from said two row bearing surface by an intermediate portion of said radially extending flange spacing said two row bearing surface from said upwardly extending portion such that the boundary plane of said braking means is axially displaced from the entire area defining said two row bearing surface, a plurality of roller elements, and an outer ring having a two row bearing surface positioned about said inner ring bearing surface with two rows of said roller elements therebetween.
Claim 3
Dependent Claim
27 words
A Bearing unit as set forth in claim 1 wherein said inner ring includes a further inwardly extending flange portion directed oppositely from said radially extending flange.
Claim 4
Dependent Claim
46 words
A bearing unit as set forth in claim 1 wherein said inner ring includes a further inwardly extending flange portion directed oppositely from said radially extending flange, said further inwardly extending flange including a plurality of coupling elements for coupling said inner ring to a shaft.
Claim 5
Dependent Claim
18 words
The bearing unit of claim 3 wherein said coupling elements are integrally formed with said further flange portion.
Claim 6
Dependent Claim
19 words
The bearing unit of claim 3 wherein said coupling elements include a keyway formed in said further flange portion.
Claim 7
Dependent Claim
66 words
The bearing unit of claim 1 wherein said roller elements are enclosed by a first sealing means positioned between said inner ring intermediate portion and said outer ring, and a second sealing means positioned between said outer ring and said inner ring on the side adjacent said inner ring bearing surface opposite the side of said inner ring bearing surface contactd by said first sealing means.
Claim 8
Dependent Claim
197 words
A bearing unit for a braking device having an externally accessible inner ring bearing surface, comprising an inner ring having as an integral one piece homogeneous structure a bearing surface for two parallel rows of roller elements, an outwardly extending radial flange including a first inner flange portion adjoining said bearing surface, a second inner flange portion adjoining said first inner flange portion and including mounting means positioned thereon, and a third portion forming a braking means, said first inner flange portion axially displacing said second and third portions sucn that the boundary plane of said braking means is sufficiently axially spaced from said bearing surface so as to completely expose said bearing surface in the radial direction for external access, an inwardly extending flange extending oppositely from said third portion of said outwardly extending radial flange, said inwardly extending flange including coupling means integrally formed therewith, an outer ring mountable over said inner ring and having a bearing surface, and two rows of roller elements encaged therebetween, said outer ring includes an outwardly extending flange having mounting means formed thereon, and sealing means sealing in said rows of roller elements between said inner and outer rings.
Claim 9
Dependent Claim
197 words
A bearing unit for a braking device having an externally accessible inner ring bearing surface, comprising an inner ring having as an integral one piece homogeneous structure a bearing surface for two parallel rows of roller elements, an outwardly extending radial flange including a first inner flange portion adjoining said bearing surface, a second inner flange portion adjoining said first inner flange portion and including mounting means positioned thereon, and a third portion forming a braking means, said first inner flange portion axially displacing said second and third portions sucn that the boundary plane of said braking means is sufficiently axially spaced from said bearing surface so as to completely expose said bearing surface in the radial direction for external access, an inwardly extending flange extending oppositely from said third portion of said outwardly extending radial flange, said inwardly extending flange including coupling means integrally formed therewith, an outer ring mountable over said inner ring and having a bearing surface, and two rows of roller elements encaged therebetween, said outer ring includes an outwardly extending flange having mounting means formed thereon, and sealing means sealing in said rows of roller elements between said inner and outer rings.
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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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |