This kind of bogie is mainly used for the transfer, detection and maintenance of metro vehicles. It is mainly consist of frame, wheelset, bolster beam, support and drive components.This bogie mainly adopts the welding frame structure, the frame is welded by two side beams and a cross beam; The wheels are made of integral steel wheels; In order to suitable for the transportation of different structure metro vehicles, the structure of support with adjustable center distance are adopted; In order to prevent the bogie and subway vehicles from bumping, The parts where connecting the bogie and the vehicle are made of non-metallic materials such as nylon and rubber.