HIIWN linear motion guide can be understood as a kind of rolling guide, is made of steel balls between the slider and guide infinite rolling cycle, so that the load platform along with the guide easily linear motion with high precision, and the coefficient of friction is reduced to the usual traditional sliding guide of one-fiftieth, can easily achieve high positioning accuracy. Slider and guide between the end system unit design, so that the HIIWN linear motion guide at the same time bear the load in all directions, such as up and down, the patented reflow system, and simplified structure design to make the HIIWN linear motion guide have a smoother and lower noise movement. Next is the principle of the HIIWN linear motion guide is introduced.