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    Rolling bearing
    35.
    发明公开
    Rolling bearing 审中-公开
    滚动轴承

    公开(公告)号：EP2514809A1

    公开(公告)日：2012-10-24

    申请号：EP12163346.5

    申请日：2012-04-05

    申请人： JTEKT CORPORATION ,  Nippon Grease Co., Ltd.

    发明人： YOSHIZAKI, Koji ,  YAMAGUCHI, Kunihiro ,  NISHIMURA, Komatsugu ,  UEDA, Michiru ,  IWAMATSU, Hiroki ,  MITSUOKA, Masashi

    IPC分类号： C10M169/06 ,  C10N30/06 ,  C10N40/02 ,  C10N50/10

    CPC分类号： C10M169/06 ,  C10M2207/0406 ,  C10M2215/1026 ,  C10M2219/066 ,  C10M2219/068 ,  C10M2227/09 ,  C10N2210/02 ,  C10N2210/05 ,  C10N2230/06 ,  C10N2240/02 ,  C10N2250/10 ,  F16C19/06 ,  F16C33/6633

    摘要： There is provided a rolling bearing which inhibits spalling of a rolling element and has a long service life even under severe environments. The rolling bearing comprises a first race member having a first raceway surface, a second race member having a second raceway surface, a plurality of rolling elements rotatably arranged between the first raceway surface and the second raceway surface, and grease for lubricating rolling contact parts and/or sliding contact parts between the first raceway surface and the rolling elements and/or between the second raceway surface and the rolling elements, wherein the grease comprises a base oil, a thickener and an extreme pressure additive, the thickener is a diurea compound obtained by allowing an amine mixture comprising alkylphenylamine, an alkyl group of which has 8 to 16 carbon atoms, and cyclohexylamine, to react with a diisocyanate compound, an amount of cyclohexylamine in the total amount of the alkylphenylamine and cyclohexylamine is from 91 to 99 % by mole, and a reaction temperature of the extreme pressure additive with iron is 260°C or lower.

    摘要翻译： 提供了一种抑制滚动元件剥落的滚动轴承，并且即使在恶劣的环境下也具有长的使用寿命。 滚动轴承包括具有第一轨道面的第一轨道部件，具有第二轨道面的第二轨道部件，在第一轨道面与第二轨道面之间可旋转地配置的多个滚动体，以及润滑滚动接触部的润滑脂， 或第一滚道表面与滚动元件之间和/或第二滚道表面与滚动元件之间的滑动接触部分，其中润滑脂包括基础油，增稠剂和极压添加剂，增稠剂为获得的双脲化合物 通过使烷基苯基胺（其烷基具有8至16个碳原子）和环己胺的胺混合物与二异氰酸酯化合物反应，烷基苯胺和环己胺的总量中的环己胺的量为91至99％ 摩尔，极压添加剂与铁的反应温度为260℃以下。