GREASE COMPOSITION AND SHAFT BEARING

PROBLEM TO BE SOLVED: To provide a grease composition suitable for a rolling shaft bearing under high temperature and exhibiting stable lubricity for long time and a shaft bearing encapsulating the same.SOLUTION: There is provided a grease composition containing (a) a base oil, (b) a thickener, (c)...

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Bibliographische Detailangaben
Hauptverfasser:	SAIDA OSAMU, ONUKI YUJI, YAMAMOTO MASAMICHI
Format:	Patent
Sprache:	eng ; jpn
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 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 suitable for a rolling shaft bearing under high temperature and exhibiting stable lubricity for long time and a shaft bearing encapsulating the same.SOLUTION: There is provided a grease composition containing (a) a base oil, (b) a thickener, (c) a compound having an alkyl thiocarbamoyl group represented by the formula (1), (d) a hindered phenolic antioxidant and (e) a metal deactivator. (1), where R, R, Rand Rrepresent independently an alkyl group having 1 to 20 carbon atoms, X represents, S, S-S, S-CH-S, S-CHCH-S or S-CHCHCH-S.SELECTED DRAWING: None 【課題】高温下にある転がり軸受に好適であり、また安定した潤滑性を長期間示すグリース組成物及びこれを封入した軸受を提供すること。【解決手段】（ａ）基油、（ｂ）増ちょう剤、（ｃ）式（１）で表されるアルキルチオカルバモイル基を有する化合物、（ｄ）ヒンダードフェノール系酸化防止剤、及び（ｅ）金属不活性化剤を含有するグリース組成物。（１）（式中Ｒ1、Ｒ2、Ｒ3、Ｒ4は独立して炭素数１〜２０のアルキル基を示し、Ｘは、Ｓ、Ｓ−Ｓ、Ｓ−ＣＨ2−Ｓ、Ｓ−ＣＨ2ＣＨ2−Ｓ又はＳ−ＣＨ2ＣＨ2ＣＨ2−Ｓを示す。）【選択図】なし