Drag chain PA66 wire carrier 

In order to achieve the above purposes, the technical scheme adopted by the utility model is: roller type drag chain, including a number of chain links, the chain links are connected by connecting pieces, the two sides of the upper surface of the chain link is provided with an installation slot, the installation slot is connected with the side end face of the chain link, the installation slot is provided with a rotating shaft, the rotating shaft is provided with a roller. A removable outer side of the mounting slot is provided with a guard for limiting the axial position of the roller. Further, the center of the rotating shaft is provided with a threaded hole, and the protection plate is installed on the end of the rotating shaft through a screw. Further, the protection plate is adapted to the mounting slot. Further, the roller is a bearing. Further, the guard plate is provided with a clamp, and the mounting groove is provided with the clamp. Further, the card is…