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上银直线导轨EGH25SA|上银滑块EGH25SA

产品规格：EGH25SA产品类别：EG系列、低组装滑轨

上银导轨EGH25SA/上银滑块EGH25SA 相关资源

产品优点；
使用线性滑轨作为线性导引时，由于线性滑轨的摩擦方式为滚动摩擦，不仅摩擦系数降低至滑动导引的1/50，动摩擦力与静摩擦力的差距亦变得很小。因此当床台运行时，不会有打滑的现象发生，可达到μm级的定位精度。
传统的滑动导引，无可避免的会因油膜逆流作用造成平台运动精度不良，且因运动时润滑不充份，导致运行轨道接触面的磨损，严重影响精度。而滚动导引的磨耗非常小，故机台能长时间维持精度。
由于线性滑轨移动时摩擦力非常小，只需较小动力便能让床台运行，尤其是在床台的工作方式为经常性往返运行时，更能明显降低机台电力损耗量。且因其摩擦产生的热较小，可适用於高速运行。
由于线性滑轨特殊的束制结构设计，可同时承受上、下、左、右方向的负荷，不像滑动导引在平行接触面方向可承受的侧向负荷较轻，易造成机台运行精度不良。
组装时只要铣削或研磨床台上滑轨之装配面，并依建议之步骤将滑轨、滑块分别以特定扭力固定於机台上，即能重现加工时的高精密度。传统的滑动导引，则须对运行轨道加以铲花，既费事又费时，且一旦机台精度不良，又必需再铲花一次。线性滑轨具有互换性，可分别更换滑块或滑轨甚至是线性滑轨组，机台即可重新获得高精密度的导引。
滑动导引若润滑不足，将会造成接触面金属直接摩擦损耗床台，而滑动导引要润滑充足并不容易，需要在床台适当的位置钻孔供油。线性滑轨则已在滑块上装置油嘴，可直接以注油枪打入油脂，亦可换上专用油管接头连接供油油管，以自动供油机润滑。

产品选型
◆HG系列：磨床、铣床、车床、钻床、综合加工机、放电加工机、搪床、线切割机、精密量测仪器、木工机器、搬运机器、运送装置。
◆EG系列：产业自动化机器、半导体机械、雷射雕刻机、包装机器。
◆MGN/MGW系列：印表机、机器手臂、电子仪器设备、半导体设备。
◆RG系列：CNC加工机、重切屑加工机、CNC磨床、射出成型机、放电加工机、线切割机、大型龙门机床。
◆Q1系列：适用于高速、静音与低发尘需求的电子产业。

工作原理
直线导轨可以理解为是一种滚动导引，是由钢珠在滑块跟导轨之间无限滚动循环，从而使负载平台沿着导轨轻易的高精度线性运动，并将摩擦系数降至平常传统滑动导引的五十分之一，能轻易地达到很高的定位精度。滑块跟导轨间末制单元设计，使线形导轨同时承受上下左右等各方向的负荷，专利的回流系统及精简化的结构设计让上银的线性导轨有更平顺且低噪音的运动。

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