MSG series linear guide adopts 4 rows of circular contact type and 45° contact Angle steel ball row design, providing the same load rating capacity in radial, inverse radial and transverse directions. It can be used in various installation modes of X, Y, Z and other axes, and can be preloaded evenly under the condition of maintaining low friction resistance to enhance the rigidity of the four force directions. Especially suitable for high-precision and high-load movement mode, and design to increase the width of the guide rail and reduce the combined height, in the case of high torque and limited space, single axis configuration can be used.