HIWIN直线导轨系为一种滚动导引，借由钢珠在滑块与导轨之间作无限滚动循环，负载平台能沿着导轨轻易地以高精度作线性运动。与传统的滑动导引相比较，滚动导引的摩擦系数可降低至原来的1/50，由于启动的摩擦力大大减少，相对的较少无效运动发生，故能轻易达到μm级进给及定位。再加上滑块与导轨间的束制单元设计，使得直线导轨可同时承受上下左右等各方向的负荷，上述陈列特点并非传统滑动导引所能比拟，因此机台若能派和滚珠螺杆，使用直线导轨作导引，必能大幅提高设备精度与机械效能。
HIWIN直线导轨常用型号
HGH15CA HGH20CA HGH25CA HGH30CA HGH35CA HGH45CA HGH55CA HGH65CA
HGW15CA HGW20CA HGW25CA HGW30CA HGW35CA HGW45CA HGW55CA HGW65CA
HGW15CC HGW20CC HGW25CC HGW30CC HGW35CC HGW45CC HGW55CC HGW65CC
HGH20HA HGH25HA HGH30HA HGH35HA HGH45HA HGH55HA HGH65HA
HGW20HC HGW25HC HGW30HC HGW35HC HGW45HC HGW55HC HGW65HC
HGW20HA HGW25HA HGW30HA HGW35HA HGW45HA HGW55HA HGW65HA
EGH15CA EGH20CA EGH25CA EGH30CA EGH15SA EGH20SA EGH25SA EGH30SA
EGW15CA EGW20CA EGW25CA EGW30CA EGW15SA EGW20SA EGW25SA EGW30SA
MGN7C MGN9C MGN12C MGN15C MGN7H MGN9H MGN12H MGN15H
MGW7C MGW9C MGW12C MGW15C MGW7H MGW9H MGW12H MGW15H
