Gas Bearings (Laser)
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United States of America Patent
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N/A
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app pub date -
Nov 28, 2005
filing date -
Jan 13, 2005
priority date (Note) -
Abandoned
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Abstract
Method for gas bearings comprising two relatively rotating parts, one part of which consists of a spindle shaft and the other part of which is provided with a bearing surface and is made from a material through which gas can be conducted to the bearing gap, for producing holes conducting gas to the bearing surface, distinguished by the steps: (a) with the aid of a high-energy beam directed towards the bearing surface, a certain number of first holes smaller than the final number of holes calculated from experience are made in the bearing surface to make a primary airflow through this part of the bearing surface possible; (b) the preliminary airflow is measured; (c) on the basis of the measured airflow, the exact number necessary of additional second holes to be made in order to obtain the desired necessary airflow is calculated; (d) the calculated number of additional second holes are made in the bearing surface.
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