Printing machines usually require high speed and high-precision movement to ensure the quality and stability of the printing effect. The slippability and accuracy of the linear guide are required by the printing machine, which can further ensure that there is no pattern or text floating in the printing process, so that it has the effect of high inclination and color pattern. Printing machines usually need to work for a long time, so the quality and life of the linear guide is also one of the very important considerations.