Title:
HYDROSTATIC GAS BEARING
Document Type and Number:
WIPO Patent Application WO2002012742
Kind Code:
A3
Abstract:
The present invention has its object to provide a hydrostatic gas bearing excellent in a vibration-damping characteristic. The hydrostatic gas bearing is provided with a gas ejecting equipments composed of a cylindrical fine hole having a diameter of not less than 0.04 mm and not more than 0.4 mm, wherein a helium gas is ejected through the cylindrical fine hole. The cylindrical hole has a diameter D and a length L, and in the case where a relationship of D<4>/L is not more than 2 x 10<-4> mm<3> is established, the hydrostatic gas bearing excellent in the vibration-damping characteristic is specifically realized.
Inventors:
MUKAI TOSHIO (JP)
TANAKA KEIICHI (JP)
TANAKA KEIICHI (JP)
Application Number:
PCT/JP2001/006536
Publication Date:
April 18, 2002
Filing Date:
July 30, 2001
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
NIPPON KOGAKU KK (JP)
MUKAI TOSHIO (JP)
TANAKA KEIICHI (JP)
NIPPON KOGAKU KK (JP)
MUKAI TOSHIO (JP)
TANAKA KEIICHI (JP)
International Classes:
F16C29/02; F16C32/06; (IPC1-7): F16C32/06
Foreign References:
| US3602557A | 1971-08-31 | |||
| EP0964175A2 | 1999-12-15 | |||
| EP0382096A1 | 1990-08-16 | |||
| US4226483A | 1980-10-07 |
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