直(zhí)線導軌又稱線軌、滑(huá)軌、線(xiàn)性導軌、線(xiàn)性滑軌，用于直線往複(fú)運(yùn)動場合，且可以承擔(dān)一(yī)定(dìng)的扭矩，可(kě)在高負載的情(qíng)況下(xià)實現(xiàn)高精(jīng)度的直(zhí)線運動(dòng)。在大(dà)陸稱直線(xiàn)導(dǎo)軌(guǐ)，台(tái)灣(wān)一般(bān)稱線性導軌，線(xiàn)性滑軌。主要用在自動化(huà)機械(xiè)上比較(jiào)多(duō),像德國(guó)進口的(de)機床(chuáng),紙碗(wǎn)機,激光焊(hàn)接機、機床(chuáng)的刀(dāo)架，拖(tuō)闆等等,當然直(zhí)線(xiàn)導軌和直線軸是(shì)配套(tào)用的。

        linear rail, also known as line rail, slide rail, linear guide rail, linear slide rail, is used in linear reciprocating motion, and can bear certain torque, and can achieve high precision straight line motion in high load condition. in the mainland, it is called linear guide rail. taiwan is generally called linear guide rail and linear slide rail. it is mainly used in automatic machinery, such as german imported machine tool, paper bowl machine, laser welding machine, tool holder of machine tool, trailing board and so on. of course, the linear and linear axes are used.