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US3692372A Expired / Lapsed US ⏱️ 0.0 years remaining

Thermally expansible bearing assembly

Assignee: General Electric Co
•
Filing: 1971-06-24
•
Granted: 1972-09-19
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Expires: 1991-06-24
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Abstract

Abstract A thermally expansible bearing assembly includes stress relief cuts in the circumferential structure thereof that permit a uniform radial expansion around the circumference of the outer bearing race when subjected to thermal stress.

Inventors

  • 👤 Carroll Benson Pineo

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 12:27
CPC Classifications
F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/067; F16C19/00; F16C19/52; F16C19/525; F16C19/22; F16C19/24; F16C19/26; F16C2226/00; F16C2226/50; F16C2226/60; F16C2360/00; F16C2360/23; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6659

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 167 words
A bearing assembly for retaining an elongated shaft for rotation relative to a stator element including: an annular inner bearing race disposed for rotation with the shaft; an annular outer bearing race concentric with the inner bearing race and radially spaced apart therefrom; a plurality of rollers circumferentially disposed for rotation between the inner and outer bearing races; and an annular bearing support plate disposed between and fixedly connecting the outer race and stator element and having at least one area on the circumference of smaller radial expansion under thermal stress than generally found elsewhere on the circumference of the support plate, wherein the improvement comprises: a stress relief cut through the bearing support plate for uniform thermal radial expansion along the entire circumference of the outer bearing race, wherein the stress relief cut includes a generally circumferential cut through the area of smaller radial expansion and two generally radial cuts extending inward from the circumferential cut on opposing sides of the area of smaller radial expansion.
Claim 2
Dependent Claim 167 words
A bearing assembly for retaining an elongated shaft for rotation relative to a stator element including: an annular inner bearing race disposed for rotation with the shaft; an annular outer bearing race concentric with the inner bearing race and radially spaced apart therefrom; a plurality of rollers circumferentially disposed for rotation between the inner and outer bearing races; and an annular bearing support plate disposed between and fixedly connecting the outer race and stator element and having at least one area on the circumference of smaller radial expansion under thermal stress than generally found elsewhere on the circumference of the support plate, wherein the improvement comprises: a stress relief cut through the bearing support plate for uniform thermal radial expansion along the entire circumference of the outer bearing race, wherein the stress relief cut includes a generally circumferential cut through the area of smaller radial expansion and two generally radial cuts extending inward from the circumferential cut on opposing sides of the area of smaller radial expansion.
Claim 3
Dependent Claim 28 words
The bearing assembly of claim 1 wherein the area of the bearing support plate of smaller thermal radial expansion is an axially thickened portion of the support plate.
Claim 4
Dependent Claim 50 words
The bearing assembly of claim 2 wherein the axially thickened portion includes an aperture therethrough, each end of which is in flow communication with a lubricant pipe, one pipe of which conducts lubricant from a reservoir, and the other pipe directs the lubricant to the area of the bearing surfaces.

References Cited (Backward Citations)

US1676894A Cited
US1792618A Cited
US2747367A Cited
US3276827A Cited
US3393024A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-09-19 1976-03-20 1976-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-19 1980-03-20 1980-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-19 1984-03-20 1984-09-19 $7700.00 Window Closed / Lapsed

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