STATIC PRESSURE GAS BEARING

PROBLEM TO BE SOLVED: To provide a static pressure gas bearing having excellent vibration damping characteristics. SOLUTION: The orifice type static pressure gas bearing is provided with a ventilation groove communicating with a gas jetting outlet. When a bearing clearance is taken as h and depth of...

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Bibliographic Details
Main Authors MUKAI TOSHIO, ISHITOBI KEIGO
Format Patent
LanguageEnglish
Published 20.05.2004
Edition7
Subjects
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a static pressure gas bearing having excellent vibration damping characteristics. SOLUTION: The orifice type static pressure gas bearing is provided with a ventilation groove communicating with a gas jetting outlet. When a bearing clearance is taken as h and depth of the ventilation grove is taken as g, h is 5μm or less and g/h is 5 or more. Materials of a guide, a slider and an orifice which are made up of the bearing are alumina, silicon carbide, silicon nitride, sialon, cordierite, or composite ceramic predominantly composed of them. Therefore, this invention can be effectively materialized. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020309354