US3704923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing assembly for electric motors
Assignee: FASCO MOTORS Ltd A CORP OF CANADA
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Filing: 1971-10-18
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Granted: 1972-12-05
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Expires: 1991-10-18
Abstract
Abstract A spherical bearing assembly for an electric motor is disclosed, constructed such that the axial location of the shaft is not dependent upon the end bell or end wall of the electric motor. By affixing the bearing assembly to the end bell or end wall of the motor after all other operations have been performed on the latter, a true axial alignment of the shaft with the field core can be attained without the risk that subsequent operations will cause misalignment.
Inventors
- 👤 Andrew Rajna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:41
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/02; F16C23/04; F16C23/043; F16C23/045; H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1672
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
187 words
In an electric motor, the combination of a shaft, a substantially flat end wall normal to said shaft, and a bearing assembly secured to said end wall, the bearing assembly comprising: a spherical bearing through which the shaft passes, a retainer having a flange secured to said end wall and having radially inwardly of said flange a bearing seat adapted to receive said spherical bearing, a spring member on the side of the retainer remote from said end wall, said spring member having an annular flange portion and a contact portion which is adapted to urge the spherical bearing against the bearing seat of the retainer, a first resilient annular oil-reservoir member between the end wall and the retainer, a second resilient annular oil-reservoir member between the spring member and the retainer, a housing secured to said end wall and defining therewith an enclosure containing all parts of the bearing assembly, and two annular oil slingers mounted on said shaft within said enclosure, one on either side of said spherical bearing, both the retainer and the spring member having aperture means opening on the adjacent oil-reservoir member.
Claim 2
Dependent Claim
187 words
In an electric motor, the combination of a shaft, a substantially flat end wall normal to said shaft, and a bearing assembly secured to said end wall, the bearing assembly comprising: a spherical bearing through which the shaft passes, a retainer having a flange secured to said end wall and having radially inwardly of said flange a bearing seat adapted to receive said spherical bearing, a spring member on the side of the retainer remote from said end wall, said spring member having an annular flange portion and a contact portion which is adapted to urge the spherical bearing against the bearing seat of the retainer, a first resilient annular oil-reservoir member between the end wall and the retainer, a second resilient annular oil-reservoir member between the spring member and the retainer, a housing secured to said end wall and defining therewith an enclosure containing all parts of the bearing assembly, and two annular oil slingers mounted on said shaft within said enclosure, one on either side of said spherical bearing, both the retainer and the spring member having aperture means opening on the adjacent oil-reservoir member.
Claim 3
Dependent Claim
40 words
The invention claimed in claim 1, in which said housing has a housing flange overlying the flange of the retainer and secured therewith against the end wall, the spring member being entrapped between the housing and the second oil-reservoir member.
Claim 4
Dependent Claim
30 words
The invention claimed in claim 1, in which an oil lance aperture is provided in the end wall and in which an oil tube hole is provided in the housing.
Claim 5
Dependent Claim
14 words
The invention claimed in claim 1, in which the oil-reservoir members are of felt.
Claim 6
Dependent Claim
17 words
The invention claimed in claim 1, in which the end wall is part of an end bell.
Claim 7
Dependent Claim
22 words
The invention claimed in claim 1, in which a loose-fitting thrust washer is provided between each oil slinger and the spherical bearing.
Claim 8
Dependent Claim
48 words
The invention claimed in claim 1, in which the end wall has an annular rib extending toward said first oil-reservoir member, and urging the latter against said retainer, the spring member having a peripheral lip extending toward the second oil-reservoir member and urging the latter against said retainer.
References Cited (Backward Citations)
US3499504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |