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    Heat-resistant, high speed, and high-loaded rolling bearing and grease composition
    1.
    发明专利
    Heat-resistant, high speed, and high-loaded rolling bearing and grease composition 审中-公开
    耐高温，高速和高负荷滚动轴承和润滑脂组合物

    公开(公告)号：JP2003013973A

    公开(公告)日：2003-01-15

    申请号：JP2001196291

    申请日：2001-06-28

    Applicant: Ntn Corp ,  エヌティエヌ株式会社

    Inventor： KAWAMURA TAKAYUKI ,  MIKAMI EISHIN ,  ASO MITSUNARI

    IPC: F16C33/66 ,  C10M105/18 ,  C10M105/36 ,  C10M115/08 ,  C10M125/00 ,  C10M125/20 ,  C10M125/24 ,  C10M169/00 ,  C10N10/02 ,  C10N10/12 ,  C10N30/00 ,  C10N30/06 ,  C10N30/08 ,  C10N40/02 ,  C10N50/10

    CPC classification number: C10M169/00 ,  C10M2201/08 ,  C10M2201/082 ,  C10M2201/083 ,  C10M2201/085 ,  C10M2201/086 ,  C10M2207/0406 ,  C10M2207/2855 ,  C10N2230/08 ,  C10N2240/02 ,  C10N2240/20 ,  C10N2250/10

    Abstract: PROBLEM TO BE SOLVED: To provide a heat-resistant, high speed, and high-loaded rolling bearing, which is used for accessory units or electrically-powered components, having non abnormal flaking phenomena, sufficiently long life, and superior durability under high temperature, high speed, and high loading operating conditions.
    SOLUTION: Grease composition, in which diurea compound showed in the following chemical expression 5 is combined as a thickener and a passive agent such as sodium nitrite is also added at 0.1 to 5 wt.% in base oil mixed alkyl diphenyl ether oil and aromatic ether oil with 20 to 150 mm
    2 /s of dynamic viscosity at 40°C in a range from 50:50 to 80:20 (weight ratio) and is filled in the heat-resistant, high speed, and high-loaded rolling bearing. (where, R
    2 shows an aromatic hydrocarbon group having 6 to 15C, R
    1 and R
    3 show an aromatic hydrocarbon group having 6 to 12C, or an cycloalkane family hydrocarbon group having 6 to 20C, a rate of aromatic hydrocarbon of R
    1 and R
    3 occupied in a full amount are 1/2 or more in a mole ratio, and R
    1 and R
    3 may be the same or different.
    COPYRIGHT: (C)2003,JPO

    Abstract translation: 要解决的问题：为了提供用于附件单元或电动部件的耐热，高速，高负载的滚动轴承，具有不正常的剥离现象，足够长的使用寿命和在高温下具有优异的耐久性 ，高速和高负荷运行条件。 解决方案：其中二脲化合物显示为以下化学表达式5的油脂组合物作为增稠剂组合，还在0.1至5重量％的基础油混合烷基二苯醚油和芳族醚中加入亚硝酸钠等被动剂 在50℃至80:20（重量比）的范围内在40℃下具有20至150mm 2 / s的动态粘度的油，并填充在耐热，高速和高负载 滚动轴承。 （其中，R 2表示具有6〜15个碳原子的芳香族烃基，R 1和R 3表示6〜12个C的芳香族烃基，6〜20℃的环烷烃系烃基， 全部摩尔比为1/2以上，R1和R3可以相同或不同。

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