HG series linear guide, for four rows of single arc tooth contact linear guide, while integrating the optimised structure design of heavy-duty precision linear guide, compared with other linear guide to enhance the load and rigidity; with four-direction equal load characteristics, and automatic alignment function, can absorb the assembly error of the installation surface, to get the requirements of high precision. High speed, high load, high rigidity and high precision concept has become the future trend of the world's industrial product development, HG series linear guide, that is, based on the concept of the development of the product.