Grinding or milling the machine surface, following the recommended installation procedure, and tightening the bolts to their specified torque can achieve highly accurate linear motion. Installing a linear guideway is fairly easy. They are also more likely to become inaccurate when they are subjected to the loads. Conventional linear slides can only take small loads in the direction parallel to the contact surface. With this special design, these linear guideways can take loads in either the vertical or horizontal directions. This is especially true for the reciprocating parts. This results in greater power savings, especially in the moving parts of a system. High speed motions is possible with a low driving forceīecause linear guideways have little friction resistance, only a small driving force is needed to move a load. In contrast, rolling contact has little wear therefore, machines can achieve a long life with highly accurate motion. Insufficient lubrication causes wear between the contact surfaces, which become increasingly inaccurate. With a traditional slide, errors in accuracy are caused by the counter flow of the oil film. Therefore, there would be no slippage while the load is moving. The coefficient of friction is only 1/50 of traditional contact, and the difference between the dynamic and the static coefficient of friction is small. When a load is driven by a linear motion guideway, the frictional contact between the load and the bed desk is rolling contact. Thus, HIWIN HG series linear guideways can achieve a long life with high speed, high accuracy and smooth linear motion.īesides the standard top mounting type, HIWIN also offers the bottom mounting type of rails to customers.Īdvantages and Features of Linear Guideways It features equal load ratings in the radial, reverse radial and lateral directions, and self-aligning to absorb installation-error. HG series linear guideways are designed with load capacity and rigidity higher than other similar products with circular-arc groove and structure optimization.

Hiwin linear rail