GREASE COMPOSITION FOR ANGULAR BALL BEARING AND ANGULAR BALL BEARING USING THE SAME

PROBLEM TO BE SOLVED: To provide a grease composition for angular ball bearing which has superior stripping life and bearing lubricating life for hub unit bearing, to provide an angular ball bearing and an automobile hub unit. SOLUTION: The grease composition for an angular ball bearing includes a b...

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Bibliographische Detailangaben
Hauptverfasser:	AZUMA TAKASHI, SAIDA OSAMU, ONUKI YUJI
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING CHEMISTRY ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS FUELS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LIGHTING LUBRICANTS LUBRICATING COMPOSITIONS MECHANICAL ENGINEERING METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS TECHNICAL GASES CONTAINING CARBON MONOXIDE THERMAL INSULATION IN GENERAL USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a grease composition for angular ball bearing which has superior stripping life and bearing lubricating life for hub unit bearing, to provide an angular ball bearing and an automobile hub unit. SOLUTION: The grease composition for an angular ball bearing includes a base oil having a dynamic viscosity at 40°C of 70 to 400 mm2/s and a diurea compound as a thickening agent represented by general formula (I): R1-NHCONH-R2-NHCONH-R3, wherein R2is a 6-15C bivalent aromatic hydrocarbon group, R1and R3present cyclohexyl group and 8-22C normal or branched alkyl group, and a proportion of the molar number of the 8-22C normal or branched alkyl group to the total molar number of the cyclohexyl group and 8-22C normal or branched alkyl group is 5 to 100%. The angular ball bearing which encloses the grease composition for angular ball bearing is also provided. Further, the automobile hub unit using the angular ball bearing is also provided. COPYRIGHT: (C)2010,JPO&INPIT