直線導軌（linear   slider）可分為：滾輪直線導軌，圓(yuan)柱直線(xian)(xian)(xian)(xian)導(dao)(dao)(dao)軌(gui)(gui)，滾珠直線(xian)(xian)(xian)(xian)導(dao)(dao)(dao)軌(gui)(gui)，三種，是用(yong)來支(zhi)撐和引導(dao)(dao)(dao)運(yun)動(dong)(dong)部件(jian)，按(an)給定(ding)的方(fang)向做往復直線(xian)(xian)(xian)(xian)運(yun)動(dong)(dong)。依按(an)摩擦(ca)(ca)(ca)性質而定(ding)，直線(xian)(xian)(xian)(xian)運(yun)動(dong)(dong)導(dao)(dao)(dao)軌(gui)(gui)可以分為滑動(dong)(dong)摩擦(ca)(ca)(ca)導(dao)(dao)(dao)軌(gui)(gui)、滾動(dong)(dong)摩擦(ca)(ca)(ca)導(dao)(dao)(dao)軌(gui)(gui)、彈(dan)性摩擦(ca)(ca)(ca)導(dao)(dao)(dao)軌(gui)(gui)、流(liu)體摩擦(ca)(ca)(ca)導(dao)(dao)(dao)軌(gui)(gui)等種類。直線(xian)(xian)(xian)(xian)導(dao)(dao)(dao)軌(gui)(gui)報價現在一個(ge)170元(yuan)左(zuo)右。