Title:
LUBRICATING OIL COMPOSITION, KINETIC LIQUID BEARING AND MOTOR LOADING LIQUID BEARING USING THE SAME COMPOSITION
Document Type and Number:
Japanese Patent JP2006083321
Kind Code:
A
Abstract:
To provide a lubricating oil for kinetic liquid bearing having low viscosity and excellent in performances such as an energy saving property and wear resistance and a kinetic liquid bearing and a motor each using the lubricating oil.
The lubricating oil comprises a lubricating oil base oil composed of an ester-based base oil represented by chemical formula (1) (wherein R1 and R2 are each an alkyl group) and at least one kind of fatty acid represented by chemical formula 2: R3-COOH (wherein R3 is an alkyl group) and preferably further comprises a mixed antioxidant composed of a hindered phenolic antioxidant having at least one (3,5-di-tert-butyl-4-hydroxyphenyl) and a hindered amine-based antioxidant.
Inventors:
MARUYAMA TOMOMI
TOJO FUMIYO
TOJO FUMIYO
Application Number:
JP2004271080A
Publication Date:
March 30, 2006
Filing Date:
September 17, 2004
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
C10M169/04; C10M105/38; C10M129/10; C10M129/32; C10M129/40; C10M133/12; F16C17/10; F16C33/10; H02K7/08; H02K21/24; C10N30/06; C10N40/02
Domestic Patent References:
| JP2000336383A | 2000-12-05 | |||
| JPH01225697A | 1989-09-08 | |||
| JP2002195252A | 2002-07-10 | |||
| JP2001316687A | 2001-11-16 | |||
| JP2001240885A | 2001-09-04 | |||
| JPH08283767A | 1996-10-29 | |||
| JP2003143803A | 2003-05-16 |
Foreign References:
| WO2004018595A1 | 2004-03-04 |
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito
Tomoyasu Sakaguchi
Hiroki Naito