Dynamic pressure bearing device

Details Dynamic pressure bearing device Dynamic pressure bearing device

1992-07-16

1993-08-31

Hannon, Thomas R.

Bearings

Rotary bearing

Fluid bearing

384115, 384118, 384119, F16C 3206

Patent

active

052403327

ABSTRACT:
A dynamic pressure bearing device has a bearing and a shaft which is partly accommodated in the bearing. A sliding surface of the bearing is provided with dynamic pressure grooves of circular shape. When the direction of relative movement between the shaft and the bearing is reversed, fluid within the dynamic pressure grooves can move its flowing direction change along the circular dynamic pressure grooves. Further, the dynamic pressure grooves, being of circular shape, can generate dynamic pressures of equal levels irrespective of the direction of the movement.

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patent: 2680259 (1954-06-01), Milk
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patent: 3655248 (1972-04-01), Hirs
patent: 3778123 (1973-12-01), Hendler et al.
patent: 3976342 (1976-08-01), Leyendecker et al.
patent: 4105267 (1978-08-01), Mori
patent: 4491373 (1985-01-01), Sugi et al.
patent: 5129739 (1992-07-01), Asai et al.

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