Linear guideways provide linear motion by re-circulating rolling elements between a profiled rail and a bearing block. The coefficient of friction on a linear guideway is only 1/50 compared to a traditional slide. With these features, a linear guideway can achieve high precision and greatly enhanced moving accuracy while carrying loads in all directions. Hiwin Corporation offers a variety of linear guideway series, each featuring different options for sizes, loading capacity, accuracy, and more. The HG series linear guideways are designed with load capacity and rigidity higher than other similar products with circular-arc groove and structure optimization. It features equal load ratings in the radial, reverse radial and lateral directions, and self-aligning to absorb installation-error. Thus, the HG series linear guideways can achieve a long life with high speed, high accuracy and smooth linear motion.