Grease composition for constant velocity joint and constant velocity joint containing the composition sealed therein
    5.
    发明授权
    Grease composition for constant velocity joint and constant velocity joint containing the composition sealed therein 有权
    含有密封在其中的组合物的等速万向节和等速万向节的油脂组合物

    公开(公告)号:US07910526B2

    公开(公告)日:2011-03-22

    申请号:US11642742

    申请日:2006-12-21

    摘要: The present invention provides a grease composition for use in constant velocity joints, which comprises the following components (a) to (g) and a constant velocity joint comprising the grease composition sealed or encapsulated therein: (a) a base oil; (b) a diurea thickener represented by the following general formula: R1NH—CO—NH—C6H4-p-CH2—C6H4-p-NH—CO—NHR2 wherein R1 and R2 each independently represents an alkyl group having 8 to 20 carbon atoms, an aryl group having 6 to 12 carbon atoms or a cycloalkyl group having 6 to 12 carbon atoms; (c) a molybdenum dialkyl dithiocarbamate insoluble in the base oil; (d) a molybdenum dialkyl dithiocarbamate soluble in the base oil; (e) molybdenum disulfide; (f) at least one member selected from the group consisting of calcium phenate and calcium sulfonate; and (g) a sulfur-containing extreme-pressure agent free of phosphorus. The grease composition can efficiently prevent a temperature rise of a constant velocity joint and can impart excellent durability to the joint.

    摘要翻译: 本发明提供一种用于等速万向节的润滑脂组合物,其包括以下组分(a)至(g)和包含其中密封或包封的润滑脂组合物的等速接头:(a)基础油; (b)由以下通式表示的二脲增稠剂:R1NH-CO-NH-C6H4-p-CH2-C6H4-p-NH-CO-NHR2其中R1和R2各自独立地表示具有8至20个碳原子的烷基 ,碳原子数为6〜12的芳基或碳原子数为6〜12的环烷基。 (c)不溶于基础油的二烷基二硫代氨基甲酸钼; (d)可溶于基础油中的二烷基二硫代氨基甲酸钼; (e)二硫化钼; (f)选自苯酚钙和磺酸钙的至少一种; 和(g)不含磷的含硫极压剂。 润滑脂组合物能够有效地防止等速万向节的温度上升,并且能够赋予接头优异的耐久性。