Patent US3770992A successfully refreshed from Google Patents.
US3770992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing having closure means for closing the bearing seating
Assignee: SKF Industrie SpA
•
Filing: 1971-02-28
•
Granted: 1973-11-06
•
Expires: 1991-02-28
Abstract
Abstract A rolling element bearing having a sealing cover for closing the opening in a casing or housing in which the bearing is mounted to prevent the leakage of lubricant and to protect the bearing from dust and other foreign bodies. The cover is substantially disc like and has an annular rim which clips over the outer annular bearing member of the bearing and engages in an annular groove in the curved surface thereof. The cover also has a central portion slightly axially displaced from a peripheral portion so that no rubbing against the inner annular bearing element occurs when the bearing is in use, but the central portion is resiliently movable with respect to the peripheral portion so that the cover can be assembled to the bearing before the bearing is pressed onto a shaft so that the force can be applied through the central portion of the cover which moves to engage the inner bearing element during this operation and then returns to the normal position spaced from the inner bearing member.
Inventors
- 👤 B Veglia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:00
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/72; F16C33/723; F16C33/76; F16C33/78; F16C33/7886; F16C35/00; F16C35/04; F16C35/06; F16C35/067; F16C43/00; F16C43/04; F16C43/045; F16C19/00; F16C19/02; F16C19/04; F16C19/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
174 words
In a rolling element bearing, said rolling element bearing comprising, an inner annular bearing member, an outer annular bearing member, rolling elements between said inner and said outer bearing members, the improvement comprising, an annular groove in the outer curved surface of said outer bearing member, a cover for sealing a shaft on which said bearing is mounted, said cover comprising a substantially circular disc-like member having, a substantially flat central portion, a peripheral portion axially displaced from said central portion, an annular ridge between said central portion and said peripheral portion said annular ridge allowing resilient axial movement between said central position and said peripheral portion, and an annular rim around said peripheral portion, said annular rim having a C-shaped cross section, said rim engaging in said annular groove in said outer bearing member with said peripheral portion abutting a side face of said outer bearing member, said ridge spaced radially from and between said inner and outer bearing members and said substantially flat central portion spaced axially from said inner bearing member.
Claim 2
Dependent Claim
174 words
In a rolling element bearing, said rolling element bearing comprising, an inner annular bearing member, an outer annular bearing member, rolling elements between said inner and said outer bearing members, the improvement comprising, an annular groove in the outer curved surface of said outer bearing member, a cover for sealing a shaft on which said bearing is mounted, said cover comprising a substantially circular disc-like member having, a substantially flat central portion, a peripheral portion axially displaced from said central portion, an annular ridge between said central portion and said peripheral portion said annular ridge allowing resilient axial movement between said central position and said peripheral portion, and an annular rim around said peripheral portion, said annular rim having a C-shaped cross section, said rim engaging in said annular groove in said outer bearing member with said peripheral portion abutting a side face of said outer bearing member, said ridge spaced radially from and between said inner and outer bearing members and said substantially flat central portion spaced axially from said inner bearing member.
Claim 3
Dependent Claim
56 words
The rolling element bearing of claim 1 wherein said rim of said peripheral portion of said cover extends radially from said outer bearing element to engage a cooperating annular recess in an opening in a housing in which said bearing is mounted to secure said cover and and said bearing against axial movement in said housing.
Claim 4
Dependent Claim
58 words
The bearing of claim 1 wherein the face remote from the face having said cover is provided with a second cover arranged to prevent rotation of said outer bearing member in said housing and to provide a slight axial preloading to said bearing, said second cover engaging in a second annular groove in said outer annular bearing member.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |