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    Bearing having low torque, small noise and long life
    78.
    发明授权
    Bearing having low torque, small noise and long life 有权
    轴承扭矩小，噪音小，使用寿命长

    公开(公告)号：US06261999B1

    公开(公告)日：2001-07-17

    申请号：US09511717

    申请日：2000-02-23

    申请人： Motoharu Akiyama

    发明人： Motoharu Akiyama

    IPC分类号： C10M14102

    CPC分类号： F16C33/6633 ,  C10M105/36 ,  C10M105/38 ,  C10M105/48 ,  C10M117/02 ,  C10M117/04 ,  C10M169/02 ,  C10M2207/026 ,  C10M2207/1225 ,  C10M2207/1245 ,  C10M2207/125 ,  C10M2207/1265 ,  C10M2207/1285 ,  C10M2207/129 ,  C10M2207/166 ,  C10M2207/186 ,  C10M2207/206 ,  C10M2207/246 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/2825 ,  C10M2207/283 ,  C10M2207/2835 ,  C10M2207/2855 ,  C10M2207/286 ,  C10M2207/32 ,  C10M2207/325 ,  C10M2207/34 ,  C10M2215/064 ,  C10M2215/065 ,  C10M2219/044 ,  C10M2219/108 ,  C10N2210/01 ,  C10N2240/02

    摘要： A bearing with which low torque property, low noise property and low volatilization property can be maintained, is provided. The bearing is sealed with a grease composition comprising: (A) an alkali metal salts and/or an alkaline earth metal salt synthesized from a hydroxide of an alkali metal or an alkaline earth metal, and a higher fatty acid having 10 or more carbon atoms or a higher hydroxyfatty acid having at least one hydroxyl group and 10 or more carbon atoms; (B) a carbonate compound represented by the general formula:  (R and R′ represent a branched alkyl group having 13-15 carbon atoms, and may be same or different); and (C) at least one kind of an ester-based synthetic oil selected from the group consisting of a diester-based synthetic oil represented by the general formula (i): ROCO(CH2)nCOOR′  (i)  (R and R′ represent an alkyl group having 3-18 carbon atoms, and may be the same or different, and n is 3-12); a triester-based synthetic oil represented by the general formula (ii): C2H5C(CH2OCOR)3  (ii)  (R represents an alkyl group having 3-10 carbon atoms); a tetraester-based synthetic oil represented by the following general formula (iii): C(CH2OCOR)4  (iii)  (R represents an alkyl group having 3-10 carbon atoms), and other neopentyl polyol ester-based synthetic oil.

    摘要翻译： 提供了可以保持低扭矩特性，低噪音性和低挥发性的轴承。 轴承用润滑脂组合物密封，该组合物包含：（A）由碱金属或碱土金属的氢氧化物和具有10个或更多个碳原子的高级脂肪酸合成的碱金属盐和/或碱土金属盐 或具有至少一个羟基和10个以上碳原子的高级羟基脂肪酸;（B）由以下通式表示的碳酸酯化合物：（R和R'代表具有13-15个碳原子的支链烷基，并且可以是 相同或不同）; 和（C）至少一种选自由通式（i）表示的二酯类合成油组成的组中的酯类合成油：（R和R'代表具有3-18个碳原子的烷基） 原子，并且可以相同或不同，n为3-12）;由通式（ii）表示的三酯合成油：（R表示具有3-10个碳原子的烷基）;四酯 - （iii）表示的（R代表具有3-10个碳原子的烷基）和其它新戊基多元醇酯类合成油。