Oil impregnated sintered bearing

Details Oil impregnated sintered bearing Oil impregnated sintered bearing

1990-09-18

1992-06-09

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

384902, 29898054, F16C 3302, B21D 5310

Patent

active

051200910

ABSTRACT:
An oil impregnated sintered bearing suitably used for a spindle motor, which rotatably supports a shaft in a longitudinal opening of the bearing for supporting the motor shaft. The longitudinal opening is formed by at least three inwardly projecting surfaces defining a portion of the longitudinal opening and being arranged symmetrically with respect to a central longitudinal axis of the opening. The surfaces are almost tangential to a motor shaft disposed in the opening such that the surfaces have a clearance relative to the shaft which is smaller than that of other inner peripheral portions defining the opening. A wedge-like clearance is formed between the shaft and a side of the projecting surfaces toward which the shaft rotates.

REFERENCES:
patent: 2855249 (1958-10-01), Gerard
patent: 2894792 (1959-07-01), Brilli
patent: 3110085 (1963-11-01), Sternlicht
patent: 3276676 (1966-10-01), Buske
patent: 4290655 (1981-09-01), Apuzzo et al.
patent: 4747705 (1988-05-01), Agrawal

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