公开(公告)号：EP1956072A1

公开(公告)日：2008-08-13

申请号：EP06797257.0

申请日：2006-09-01

申请人： NTN Corporation

发明人： EGAMI, Masaki c/o NTN Corporation 3066, Aza Oyumida ,  ASAO, Mitsunari c/o NTN Corporation 3066, Aza Oyumida

IPC分类号： C10M169/00 ,  C10M107/38 ,  C10M119/22 ,  C10M129/26 ,  C10M133/20 ,  F16C33/32 ,  F16C33/34 ,  F16C33/44 ,  F16C33/56 ,  F16C33/62 ,  F16C33/66 ,  C10N10/10 ,  C10N10/12 ,  C10N30/08 ,  C10N40/02 ,  C10N50/10

CPC分类号： F16C33/44 ,  C10M161/00 ,  C10M2201/05 ,  C10M2201/06 ,  C10M2201/062 ,  C10M2201/065 ,  C10M2201/08 ,  C10M2201/081 ,  C10M2201/082 ,  C10M2201/083 ,  C10M2201/085 ,  C10M2207/127 ,  C10M2207/2855 ,  C10M2213/0606 ,  C10M2213/0613 ,  C10M2213/0626 ,  C10M2215/102 ,  C10M2215/1026 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2210/05 ,  C10N2210/06 ,  C10N2230/06 ,  C10N2230/08 ,  C10N2230/56 ,  C10N2230/74 ,  C10N2240/02 ,  C10N2250/10 ,  F16C19/06 ,  F16C33/427 ,  F16C33/445 ,  F16C33/6633

摘要： The present invention provides lubricating grease which is excellent in durability at a high temperature, restrains a reaction from occurring between fluorine and steel, and has a long life; and a rolling bearing in which the lubricating grease is enclosed. The lubricating grease contains perfluoro polyether oil as a base oil thereof and fluorocarbon resin powder as a thickener thereof. The lubricating grease further contains an additive containing a substance capable of forming a film on a metal surface. The substance is a diurea compound having an -NH-bond in a molecular structure thereof, an organic-acidmetal salt such as sodium sebacate, molybdate such as potassium molybdate or sodium molybdate, or a bismuth-containing compound such as bismuth sulfate. The rolling bearing has an inner ring and an outer ring disposed concentrically with each other, a plurality of rolling elements interposed between the inner ring and the outer ring, and a retainer dividedly holding the rolling elements. The lubricating grease is enclosed on the periphery of the rolling elements.

摘要翻译： 本发明提供在高温下耐久性优异的润滑脂，抑制氟与钢之间的反应，寿命长; 以及包围润滑脂的滚动轴承。 润滑脂含有作为其基础油的全氟聚醚油和作为其增稠剂的氟碳树脂粉末。 润滑脂还包含含有能够在金属表面上形成膜的物质的添加剂。 该物质是其分子结构中具有-NH键的二脲化合物，诸如癸二酸钠的有机酸金属盐，钼酸钾或钼酸钠等钼酸盐，或硫酸铋等含铋的化合物。 滚动轴承具有彼此同心设置的内圈和外圈，插入在内圈和外圈之间的多个滚动元件和分开地保持滚动元件的保持器。 润滑脂被封闭在滚动元件的周边。