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Title:
GREASE FILLED BEARING
Document Type and Number:
WIPO Patent Application WO/2014/087979
Kind Code:
A1
Abstract:
A grease-filled b earing filled with a grease composition containing a thickener which is a diurea compound represented by R1-NHCONH-R2-NHCONH-R3 or a mixture thereof and a base oil containing alkyl diphenyl ether oil and c ontaining poly α-olefin oil as an optional component at a mass ratio of 40:60 to 100:0 (alkyl diphenyl ether oil:poly α-olefin oil). In general formula (1), at least one of R1 and R3 is a C6-12 aromatic hydrocarbon group and the other is a C6-12 aromatic hydrocarbon group or a C6-20 aliphatic hydrocarbon group. R2 is a C6-15 aromatic hydrocarbo n group.

Inventors:
KANDA HARUKA (JP)
INAMI NORIYUKI (JP)
HOKAO MICHITA (JP)
YOKOUCHI ATSUSHI (JP)
KONNO KATSUHIRO (JP)
Application Number:
PCT/JP2013/082402
Publication Date:
June 12, 2014
Filing Date:
December 02, 2013
Export Citation:
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Assignee:
NSK LTD (JP)
International Classes:
F16C33/66; C10M115/08; C10M169/02; F16C19/28; F16C23/08; F16C33/78; C10N20/00; C10N20/02; C10N30/06; C10N50/10
Domestic Patent References:
WO2009144785A12009-12-03
Foreign References:
JPH093466A1997-01-07
JP2008144808A2008-06-26
JP2008239706A2008-10-09
JPH09264328A1997-10-07
JP2009185084A2009-08-20
Other References:
See also references of EP 2927523A4
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
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