Patent US4382639A successfully refreshed from Google Patents.
US4382639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-directional thrust and radial ball bearing
Assignee: Timken US LLC
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Filing: 1981-03-30
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Granted: 1983-05-10
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Expires: 2001-03-30
Abstract
Abstract The ball bearing comprises a pressed metal cup in which are loosely-mounted axially-spaced, pressed metal thrust washers which contact a plurality of balls. The thicknesses of the thrust washers and the diameter of the balls are chosen so that an axial clearance between the metal cup and a thrust washer is provided when the other thrust race engages the cup and the balls are in contact with both thrust washers.
Inventors
- 👤 Michael J. McGuffie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:38
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/02; F16C19/14; F16C19/16; F16C19/163; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/901
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
186 words
A bi-directional thrust and radial ball bearing comprising: a pressed metal cup having a first end flange and a second end flange, a first pressed metal, annular thrust washer and a second pressed metal annular thrust washer axially spaced from said first thrust washer and loosely retained in the metal cup by the end flanges; and a plurality of balls adapted to be contacted by the annular thrust washers, the diameter of each ball and the thicknesses of the thrust washers being such that an axial force in one axial direction causes the first thrust washer to press the balls against the second thrust washer, which, in turn, is pressed against said second metal cup end flange to form an axial clearance between said first metal cup end flange and the first thrust washer, and an axial force in the other axial direction causes the second thrust washer to press the balls against the first thrust washer, which, in turn is pressed against said first metal cup end flange to form an axial clearance between said second metal cup end flange and the second thrust washer.
Claim 2
Dependent Claim
186 words
A bi-directional thrust and radial ball bearing comprising: a pressed metal cup having a first end flange and a second end flange, a first pressed metal, annular thrust washer and a second pressed metal annular thrust washer axially spaced from said first thrust washer and loosely retained in the metal cup by the end flanges; and a plurality of balls adapted to be contacted by the annular thrust washers, the diameter of each ball and the thicknesses of the thrust washers being such that an axial force in one axial direction causes the first thrust washer to press the balls against the second thrust washer, which, in turn, is pressed against said second metal cup end flange to form an axial clearance between said first metal cup end flange and the first thrust washer, and an axial force in the other axial direction causes the second thrust washer to press the balls against the first thrust washer, which, in turn is pressed against said first metal cup end flange to form an axial clearance between said second metal cup end flange and the second thrust washer.
Claim 3
Dependent Claim
39 words
A bearing in accordance with claim 1 wherein: each thrust washer has an axially-extending, inner-annular flange extending in the opposite direction from the annular flange of the other thrust washer, said inner-annular flanges being constructed to retain the balls.
Claim 4
Dependent Claim
24 words
A bi-directional thrust and radial ball bearing in accordance with claim 1 further comprising a pressed metal sleeve having radially outwardly extending end flanges.
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) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |