Provided are a lubricant composition capable of reducing friction between sliding parts at least one of which contains an aluminum-based material in a lubrication section, and a method for lubricating an aluminum-based member with the composition. The lubricant composition is for use in a lubrication section having sliding parts at least one of which contains an aluminum-based material, and contains a lubricant base oil and at least one of a phosphorus-containing carboxylic compound and a metal salt thereof (component (A)) at 0.001 to 1 mass% of the composition in terms of phosphorus. The composition may suitably be used as lubricant such as drive train lubricant for automatic or manual transmissions, grease, wet brake oil, hydraulic actuation oil, turbine oil, compressor oil, bearing oil, refrigerant oil, and the like used in apparatus having the sliding parts.
本发明提供了一种能够减少滑动部件之间摩擦的润滑剂组合物,滑动部件中至少有一个含有铝基材料,本发明还提供了一种使用该组合物润滑铝基部件的方法。该润滑剂组合物用于具有至少一个含有铝基材料的滑动部件的润滑部分,并含有润滑剂基础油和至少一种含
磷羧酸化合物及其
金属盐(成分 (A)),以
磷计,占组合物的 0.001 至 1 质量%。该组合物可适当用作润滑剂,如自动或手动变速箱的传动系统润滑剂、润滑脂、湿式制动油、液压驱动油、涡轮机油、压缩机油、轴承油、冷冻机油等,用于具有滑动部件的设备中。