HG Series
Heavy Load Ball Type
HG Series - Heavy Load Ball Type Linear Guideway
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, HIWIN HG series linear guideways can achieve a long
life with high speed, high accuracy and smooth linear motion.
Features of HG Series
(1) Self-aligning capability
By design, the circular-arc groove has contact points at 45 degrees. HG series can absorb most installation errors due
to surface irregularities and provide smooth linear motion through the elastic deformation of rolling elements and
the shift of contact points. Self-aligning capability, high accuracy and smooth operation can be obtained with an easy
installation.
(2) Interchangeability
Because of precision dimensional control, the dimensional tolerance of HG series can be kept in a reasonable range,
which means that any blocks and any rails in a specific series can be used together while maintaining dimensional
tolerance. And a retainer is added to prevent the balls from falling out when the blocks are removed from the rail.
(3) High rigidity in all four directions
Because of the four-row design, the HG series linear guideway has equal load ratings in the radial, reverse radial
and lateral directions. Furthermore, the circular-arc groove provides a wide-contact width between the balls and the
groove raceway allowing large permissible loads and high rigidity.
Construction of HG Series
Model Number of HG Series
HG series guideways can be classified into non-interchangeable and interchangeable types. The sizes are identical.The only difference between the two types is that the interchangeable type of blocks and rails can be freely exchanged,and their accuracy can reach up to P class. The model number of HG series contains the size, type, accuracy class, preload class, etc..
