ORIFICE THROTTLING TYPE STATIC PRESSURE GAS BEARING

摘要

PROBLEM TO BE SOLVED: To provide an orifice throttling type static pressure gas bearing easily manufactured and enabling downsizing.;SOLUTION: In the orifice throttling type static pressure gas bearing 1, an air supply hole 7 and a pocket 8 are formed on a bearing main body 4, and a supply passage 9 of compressed air communicated with a bearing face 3 via the air supply hole 7, a nozzle hole 9 and the pocket 8 is formed by screwing a hexagon socket set screw 12 wherein the nozzle hole 9 is formed into the air supply hole 7. Since the pocket 8 can be processed from the outer peripheral face side of the bearing main body 4 via the air supply hole 7, the pocket 8 can be easily and accurately processed, facilitating downsizing of the bearing 1. In addition, since the pocket 8 is accurately formed and capacity control can be easily performed, generation of self-excited oscillation (pneumatic hammering) can be securely suppressed.;COPYRIGHT: (C)2006,JPO&NCIPI