某单位一辆解放牌汽车,在高速行驶途中,紧争制动,因制动失灵,导致汽车追尾相撞的严重事故。后经调查分析技术鉴定。是由于维修人员在轮毂保养时,对汽车轮毂轴承装填滑脂的同时,将空腔也填满润滑脂而造成的。 我们认为,这种做法是不符合技术要求的,不但无益,而且有害。因为,当轴承温度升高后,润滑脂受热膨胀溶化,随之 A unit of a liberation of the car, in the high-speed driving on the way, to brake the brake, due to brake failure, leading to serious rear-end collision car accident. After investigation and analysis of technical appraisal. Is due to maintenance personnel in the maintenance of the wheel, the vehicle wheel hub bearings filled with grease at the same time, the cavity is also filled with grease caused. In our opinion, this practice is not in conformity with the technical requirements and is not only useless but also harmful. Because, when the bearing temperature increases, the grease heat expansion and dissolution, followed by