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    • 2. 发明授权
    • Grease composition and grease-enclosed bearing
    • 润滑脂组成和润滑脂封闭轴承
    • US08216985B2
    • 2012-07-10
    • US12450761
    • 2008-04-25
    • Hidenobu Mikami
    • Hidenobu Mikami
    • C10M169/04C10M145/00F16C19/00
    • C10M169/00C10M2205/0285C10M2207/026C10M2207/0406C10M2207/042C10M2215/1026C10M2215/223C10M2217/0456C10N2240/02C10N2240/04C10N2250/10F16C33/6633F16C2380/26
    • The present invention provides a grease composition capable of effectively preventing a rolling surface of a grease-enclosed bearing from having hydrogen brittleness-caused peeling and the grease-enclosed bearing. The grease composition includes a base grease consisting of a base oil and a thickener and an additive added to the base grease. The additive contains at least an epoxy compound. A mixing ratio of the epoxy compound to 100 parts by weight of the base grease is set to 0.05 to 10 parts by weight. The grease-enclosed bearing using the grease composition includes an inner ring (2) and an outer ring (3); a plurality of rolling elements (4) disposed between the inner ring (2) and the outer ring (3); and a sealing member (6) for covering openings (8a, 8b) disposed at both axial ends of the inner ring (2) and the outer ring (3). The grease composition (7) is enclosed on peripheries of the rolling elements (4).
    • 本发明提供一种润滑脂组合物,能够有效地防止润滑脂封闭轴承的滚动面发生氢脆性剥离和油封封闭轴承。 润滑脂组合物包括由基础油和增稠剂组成的基础润滑剂和添加到基础润滑脂中的添加剂。 添加剂至少含有环氧化合物。 环氧化合物与基础油脂100重量份的混合比设定为0.05〜10重量份。 使用润滑脂组合物的润滑脂封闭轴承包括内圈(2)和外圈(3); 设置在所述内圈(2)和所述外圈(3)之间的多个滚动元件(4)。 以及用于覆盖设置在内圈(2)和外圈(3)的两个轴向端部的开口(8a,8b)的密封构件(6)。 润滑脂组合物(7)被包围在滚动体(4)的周边。