US3645593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer bearing mounting
Assignee: SKF USA Inc
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Filing: 1969-10-13
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Granted: 1972-02-29
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Expires: 1989-10-13
Abstract
Abstract An antifriction bearing assembly mounting wherein the inner ring of the bearing, in the preferred embodiment, is mounted on a hollow sleeve which in turn is mounted on the rotating shaft, the sleeve extends axially along the shaft and is hollow in the manner of an envelope. The interior is filled with a heat conductive material such as sodium and the axial end of the sleeve remote from the bearing has radially outwardly directed cooling fins associated therewith. In this manner, heat created during rotation of the bearing assembly is drawn away from the inner ring of the bearing to a point where it can be effectively dissipated.
Inventors
- 👤 Arthur S Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:11
CPC Classifications
F; F16; F16C; F16C37/00; F16C37/007; F16C33/00; F16C33/30; F16C33/58; F16C35/00; F16C35/04; F16C35/06; F16C35/07; F16C35/073; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2202/00; F16C2202/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
179 words
A mounting member for an antifriction bearing assembly, the assembly having an inner race portion encircling and rotating with a shaft, the member comprising: a heat transfer device having an inner diameter ring wall, an outer diameter ring wall, said walls spaced radially from one another, said walls connected at their axial ends enclosing a ring-shaped space between the said walls, said space substantially filled with a high thermal conductivity coolant, said device axially elongated, the inner diameter wall dimensioned to be received around a shaft in circumferential engagement therewith for rotation therewith, the inner race portion of the bearing assembly in circumferential contact with the outer diameter wall adjacent one axial end of said wall, and heat exchanger means on said device axially spaced from the one axial end, said coolant drawing heat from the assembly adjacent the one axial end and said means drawing heat from the device adjacent the heat exchanger means whereby heat will be drawn from the area of the bearing assembly and dissipated from the device at a point from the bearing assembly.
Claim 2
Dependent Claim
179 words
A mounting member for an antifriction bearing assembly, the assembly having an inner race portion encircling and rotating with a shaft, the member comprising: a heat transfer device having an inner diameter ring wall, an outer diameter ring wall, said walls spaced radially from one another, said walls connected at their axial ends enclosing a ring-shaped space between the said walls, said space substantially filled with a high thermal conductivity coolant, said device axially elongated, the inner diameter wall dimensioned to be received around a shaft in circumferential engagement therewith for rotation therewith, the inner race portion of the bearing assembly in circumferential contact with the outer diameter wall adjacent one axial end of said wall, and heat exchanger means on said device axially spaced from the one axial end, said coolant drawing heat from the assembly adjacent the one axial end and said means drawing heat from the device adjacent the heat exchanger means whereby heat will be drawn from the area of the bearing assembly and dissipated from the device at a point from the bearing assembly.
Claim 3
Dependent Claim
41 words
The member of claim 1 wherein a second axial end portion of the said heat transfer member remote from the said one axial end has a plurality of heat dissipating fins projecting radially outwardly therefrom, said fins constituting the said means.
Claim 4
Dependent Claim
66 words
The member of claim 1 wherein the heat transfer member is relatively thin-walled and is hollow in the manner of an envelope having inner and outer spaced-apart axially extending circumferential walls closed at the axial ends, the heat transfer member fitting on the shaft in the manner of a sleeve and being effective to cool the shaft through heat dissipation to the interior of the envelope.
Claim 5
Dependent Claim
40 words
The member of claim 1 wherein a portion of the outer diameter wall adjacent to said one axial end is configured to provide the inner race of the bearing assembly, the said outer diameter wall including a circumferential race therearound.
Claim 6
Dependent Claim
50 words
The member of claim 1 wherein the said heat transfer member has an exterior configuration adjacent to the said one axial end for unclampably receiving a separate inner race ring of the bearing assembly, the separate race ring having an inner diameter in circumferential engagement with the outer diameter wall.
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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |