Title:
DYNAMIC PRESSURE GAS JOURNAL BEARING
Document Type and Number:
Japanese Patent JP3310826
Kind Code:
B2
Abstract:
PURPOSE: To stabilize bearing performance from no load to high load in a dynamic pressure gas journal bearing.
CONSTITUTION: A bearing cylinder 2 made of an elastic thin plate is disposed at a rotary shaft 1 through a bearing clearance 6. Four axially extended ribs 3 are protrusively provided on the periphery of the bearing cylinder 2, and the radius of an imaginary circumscribed circle in the free state of the ribs 3 is set slightly larger than the inner diameter of a housing 4. At the time of assembly, the bearing cylinder 2 is thus compressed to generate an initial deformation to the inner surface, and the same lubricating film as a multi-plane bearing is effectively formed by this initial deformation so as to stabilize a bearing characteristic at the time of no load. Bearing performance at the time of high load can be also stabilized by adjusting the rigidity of the ribs 3. Such a bearing is also provided with vibration proof rubber 7a.
Inventors:
Takeo Makino
Application Number:
JP18109495A
Publication Date:
August 05, 2002
Filing Date:
June 23, 1995
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F16C17/02; F16C27/02; F16C27/06; F16C37/00; (IPC1-7): F16C27/02; F16C27/06; F16C37/00
Domestic Patent References:
| JP55166523A | ||||
| JP6252216A | ||||
| JP636220U | ||||
| JP6429534U |
Attorney, Agent or Firm:
Yoshihiko Iinuma (1 person outside)
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