Title:
FLUID BEARING UNIT
Document Type and Number:
Japanese Patent JP2002323037
Kind Code:
A
Abstract:
To provide a fluid bearing unit capable of achieving stable rotation by reducing the seizure of a bearing and the leakage of lubricant.
A lubricant 10 is filled between a shaft 2 and a bearing body which is rotatably supported by the shaft 2. A membrane 12a is formed on the inside of a hub 5 contacting with the lubricant 10 in order to suppress the wear of the bearing body. The difference between the surface tension of a fluorine lubricant and the critical surface tension of the membrane 12a is made to be less than 5 mN/m by using the fluorine lubricant as the lubricant 10.
Inventors:
HIRATA KATSUSHI
Application Number:
JP2001128516A
Publication Date:
November 08, 2002
Filing Date:
April 26, 2001
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F16C17/10; C10M107/38; F16C33/20; H02K5/16; H02K7/08; C10N20/00; C10N30/06; C10N40/02; C10N50/08; (IPC1-7): F16C17/10; C10M107/38; F16C33/20; H02K5/16; H02K7/08
Attorney, Agent or Firm:
Yoshihiro Morimoto