Sliding block assembly suitable for railway vehicle door system

The utility model discloses a sliding block assembly suitable for a railway vehicle door system, which comprises a mounting seat, a protruding part is arranged on the top surface of the mounting seat, and a first mounting hole is formed in the center of the protruding part and is used for mounting a sliding block shaft; the bottom of the sliding block shaft is inserted into the first installation hole, the sliding block is installed on the top of the sliding block shaft, the sliding block rotates around the sliding block shaft, and the sliding block is made of non-metal materials. According to the sliding block assembly, a metal roller is replaced by the non-metal sliding block, a necessary bearing in an existing metal roller assembly is removed, the risk of bearing failure in the working process is avoided, the problem of rusting of the metal roller does not exist, and lubrication-free in the whole life cycle can be achieved. 本实用新型公开了一种适用于轨道车辆门系统的滑块组件，包括安装座，所述安装座顶面设置突出部，突出部中央开设第一安装孔，用以安装滑块轴；所述滑块轴底部插入第一安装孔，其顶