Method for improving the transient thermal properties of air-lub

Details Method for improving the transient thermal properties of air-lub Method for improving the transient thermal properties of air-lub

1993-03-04

1994-05-10

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

384905, F16C 2904

Patent

active

053102649

ABSTRACT:
A method for improving the transient thermal properties of hydrostatic air main spindles for precision machine tools comprises the steps of installing an entire precision machine tool that has a main spindle with an air-lubricated hydrostatic bearing in a temperature-controlled constant-temperature environment, and raising the temperature of the lubricating air supplied to the air-lubricated hydrostatic bearing above the temperature of the constant-temperature environment until the thermal displacement of the main spindle reaches a target value, and thereafter lowering it below the temperature of the constant-temperature environment.

REFERENCES:
patent: 4509160 (1985-04-01), Eggers
patent: 4798476 (1989-01-01), Sakatani et al.
patent: 4953989 (1990-09-01), Hooykaas
patent: 5072608 (1991-12-01), Lorett

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