Device for preloading a guided machine part

Details Device for preloading a guided machine part Device for preloading a guided machine part

1991-02-27

1992-07-14

Footland, Lenard A.

Bearings

Linear bearing

Tensioned or resilient race or roller member

384 12, 384 16, 384471, F16C 3206

Patent

active

051297337

ABSTRACT:
The invention contemplates use of a suction bell to enhance the loading with which a guided machine part is gravitationally supported on its guide. In application to a machine in which the machine part is movably supported on air bearings, the suction bell applies a preload force of magnitude to optimize the stiffness of air-bearing action and to maintain an air gap of uniform capillary thickness, free of mechanical contact between the machine part and its supporting surface.

REFERENCES:
patent: 4558909 (1985-12-01), Stauber
patent: 4726689 (1988-02-01), Pollock
patent: 4749283 (1988-06-01), Yokomatsu et al.
patent: 4822182 (1989-04-01), Matsushita et al.

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