Electric motor lubrication

Details Electric motor lubrication Electric motor lubrication

1989-03-08

1990-09-25

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

F16C 1702

Patent

active

049589407

ABSTRACT:
An electric motor lubrication system and a method of making the same are disclosed. The motor is a unit bearing motor with an oil reservoir at the bottom of a vertically disposed shaft. The motor rotor has a shaft journaled in a bearing post on the frame, and the lower end of the post has two grooves to receive an oil-saturated wick. Each groove has a flat bottom which extends at at least a 5-degree angle relative to the shaft axis, and the intersection of the flat bottom with the shaft aperture forms a plow edge having a component of force directing oil toward the bearing upon shaft rotation. This readily supplies oil upwardly for a vertical shaft motor. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.

REFERENCES:
patent: 2522985 (1945-12-01), Bradley
patent: 3965880 (1976-06-01), Michael
patent: 4671676 (1987-06-01), Chen et al.

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