GREASE COMPOSITION

PROBLEM TO BE SOLVED: To provide means capable of practically preventing or reducing generation of seizure even with long-term use and/or maintaining the friction coefficient in a low range at a fitted part of a hobbed spline part.SOLUTION: The present invention relates to a grease composition conta...

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Bibliographic Details
Main Authors MURASE HIROYUKI, OSAWA HISAYUKI, IKUMA KYOSUKE
Format Patent
LanguageEnglish
Published 09.06.2014
Subjects
CHEMISTRY
FUELS
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS
LUBRICANTS
LUBRICATING COMPOSITIONS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Summary:PROBLEM TO BE SOLVED: To provide means capable of practically preventing or reducing generation of seizure even with long-term use and/or maintaining the friction coefficient in a low range at a fitted part of a hobbed spline part.SOLUTION: The present invention relates to a grease composition containing: a base oil having kinetic viscosity in the range of 100 to 300 mm/s at 40°C; a thickener made of a diurea compound represented by formula (I), where Rand Rare each independently a Cto Calkyl; and an additive made of a true spherical polymer having an average particle diameter of 5 μm or less.
Bibliography:Application Number: JP20120258162