Patent ID: 7066652
Filing Date: 2006-06-27
Classification: F16C

Abstract:
1. An externally pressurized gas bearing, comprising: a main shaft, and a plurality of journal bearing sections having a single bearing sleeve that have a plurality of gas feed rows each having a plurality of circumferentially equispaced gas feed holes, said gas feed holes in the gas feed rows being adapted to spout compressed gas to thereby rotatably radially support said main shaft in a non-contact state, said externally pressurized gas bearing being characterized in that said gas feed holes in the gas feed rows are staggered for each gas feed row so as to be positioned circumferentially intermediate between gas feed holes in the adjoining gas feed row, that the gas feed holes of the plurality of journal bearing sections are disposed such that they are bilaterally symmetrical with respect to an axial middle of the single bearing sleeve, and that all of the gas feed rows are formed in the single bearing sleeve.