Gas restriction structure constituting aerostatic bearing, and aerostatic bearing

Abstract

Proposed are a gas restriction structure constituting an aerostatic bearing configured to eject a gas obliquely from an ejection port end of a pocket hole part, while reducing an area of the restrictor, and an aerostatic bearing. A gas restriction structure used for an aerostatic bearing made of a single base material and configured to eject a compressed air for supporting a collar in a non-contact state may include a gas flow passage part communicating with a gas supply source for supplying the compressed air. The structure may also include a pocket hole part in which an ejection port end configured to communicate with an outlet end of the gas flow passage part faces the collar. A part of the pocket hole part and a part of the gas flow passage part overlap with each other as seen from an ejection port end side of the pocket hole part.

Dependencies are inferred from the claim text.