US3582164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powdered metal bearing cage
Assignee: Rollway Bearing Co Inc
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Filing: 1969-06-09
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Granted: 1971-06-01
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Expires: 1989-06-09
Abstract
Abstract A cage for the rolling elements of a bearing, made entirely of powdered metal or made of powdered metal segments and stamped or cast steel end rings, with segments having contact with the rolling elements on the radius of the cage intersecting the centerline of each rolling element, and each end ring having oil grooves on its surface facing the race flange and oil pads in the end rings at points contacting the rolling elements.
Inventors
- 👤 William J Derner
- 👤 Thomas L Morrissey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:04
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/38; F16C33/44; F16C33/3837; F16C33/3881; F16C33/46; F16C33/4617; F16C33/4664; F16C33/56; F16C33/66; F16C33/6637; F16C33/664; F16C33/6648; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C19/22; F16C19/24; F16C19/26; F16C2202/00; F16C2202/02; F16C2202/10; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/91
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A cage for guiding the rolling elements of an antifriction bearing, the combination of a pair of end rings having evenly spaced recesses each coinciding with a preformed aperture, a plurality of spacer bars having end projections closely received in said end ring apertures, said spacer bar end projections being rigidly secured to said end rings, said recesses closely receiving said bars, said bars being shaped to closely enclose the rolling elements and making line contact therewith on the locus of a radius of the cage which passes through the center of each rolling element, said end rings and spacer bars being made of powdered metal compacted to an average density of from 6.7 to 7.0 grams per cubic centimeter.
Claim 2
Dependent Claim
120 words
A cage for guiding the rolling elements of an antifriction bearing, the combination of a pair of end rings having evenly spaced recesses each coinciding with a preformed aperture, a plurality of spacer bars having end projections closely received in said end ring apertures, said spacer bar end projections being rigidly secured to said end rings, said recesses closely receiving said bars, said bars being shaped to closely enclose the rolling elements and making line contact therewith on the locus of a radius of the cage which passes through the center of each rolling element, said end rings and spacer bars being made of powdered metal compacted to an average density of from 6.7 to 7.0 grams per cubic centimeter.
Claim 3
Dependent Claim
71 words
A cage as defined in claim 1 wherein each of said spacer bars in cross section is in the form of a central, an inner and an outer trapezoidal section with the shorter of the parallel sides of the inner and outer sections being respectively colinear with the parallel sides of the central section, the rolling elements making contact with the central section of the spacer bar on each side thereof.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |