Self-acting air bearing

Details Self-acting air bearing Self-acting air bearing

1997-10-20

1999-06-08

Hannon, Thomas R.

Bearings

Rotary bearing

Fluid bearing

F16C 3206

Patent

active

059099666

ABSTRACT:
A self-acting air bearing includes a housing, a shaft member supported in the housing, a cylindrical member which is installed around the shaft member coaxially and rotatably, and which rotates and generates a dynamic air pressure and thereby the cylindrical member is floatingly supported from the shaft member. In the bearing, concavities and convexes are formed at a same interval in a peripheral direction in either an outer peripheral surface of the shaft member or an inner peripheral surface of the cylindrical member, and a wave of one cycle between a beginning position of the concavity and an ending position of the convex is a harmonic wave. A bearing with high stability at high speed and high accuracy and which has high stability at high speed and low unbalance vibration can be achieved.

REFERENCES:
patent: 3601459 (1971-08-01), Cutting
patent: 4222617 (1980-09-01), Romberg
patent: 5069515 (1991-12-01), Itami et al.
patent: 5181783 (1993-01-01), Sherman et al.

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