润滑对THK直线导轨的功效
当使用THK直线导轨时，必须提供有效的润滑。如果在没有润滑的情况下使用THK直线导轨，可能会增加THK直线导轨滚动部分的磨损，缩短THK直线导轨的使用寿命。
THK直线导轨的润滑剂具有如下功效∶
为充分发挥THK直线导轨的功能，请根据使用条件进行润滑。THK直线导轨的安装方式及油嘴•配管接头的安装位置对于提高润滑效率是很重要的。
安装方式为水平使用以外的情况时润滑剂可能会有难以输送到THK直线导轨滚动面上的情况。
此外，即使是附有密封垫片的THK直线导轨，THK直线导轨内部的润滑油也会在运行中逐渐渗漏出去。 因此，需要根据THK直线导轨的使用条件，以合适的时间间隔来补给油脂。
日本THK直线导轨的间隙和预压
THK直线导轨的间隙（内部间隙）
THK直线导轨的间隙指的是THK直线运动系统的滑块（轴承套）、轨道（轴）和钢球（或滚柱）之间的空隙。THK直线导轨垂直方向间隙的总和称为径向间隙，而圆周方向间隙的总和称为角向间隙（旋转方向间隙）。
THK直线导轨的预压（预载荷）
THK直线导轨的预压（预载荷）指的是以消除THK直线运动系统的间隙、提高刚性为目的，事前给THK直线导轨滚动体施加的负荷。 THK直线运动系统的间隙表示中，负间隙（负值）意味已施加预压（预载荷）。
THK直线导轨用润滑装置QZ 的使用注意事项
请不要让THK直线导轨用润滑装置QZ 掉落或者敲击。否则，可能导致THK直线导轨用润滑装置QZ 划伤、破损。
请勿让润滑脂之类堵塞THK直线导轨用润滑装置QZ 的通气孔。
QZ是仅向THK直线导轨滚动面提供油分的装置，所以使用THK直线导轨用润滑装置QZ 时请同时进行定期加脂·定期加油。在有冷却液及切屑等异物环境下使用THK直线导轨用润滑装置QZ 时，由于THK直线导轨滚动面的油分容易流失，请务必同时使用防护罩和伸缩护罩等。
THK直线导轨用润滑装置QZ 的使用环境
本THK直线导轨用润滑装置QZ 的使用温度范围为‒10到+50℃之间，应避免用有机溶剂或白色煤油等来清洗，或在THK直线导轨用润滑装置QZ 的包装已打开状态下任意放置。
日本THK免润滑直线导轨的使用注意事项
THK直线导轨的使用注意事项
THK直线导轨的使用
THK直线导轨的使用注意事项
THK直线导轨的维修与检测
对于生产中使用的THK直线导轨，经常会出现一些问题。为了使THK直线导轨长时间保持良好的工作状态，必须及时消除THK直线导轨的这些问题。
如何检测THK直线导轨支撑系统之间的问题？当THK直线导轨在机床上使用时，会出现很大的反向误差，THK直线导轨的定位精度也会趋于不稳定，当THK直线导轨使用象限时出现刀痕时，此时必须使用螺钉。检查系统中的间隙。也就是说，THK直线导轨出现的问题与螺钉的间隙有直接关系。
在使用THK直线导轨时，如果使用了测量的千分表，若没有左右摆动状态，这意味着THK直线导轨螺丝位置良好，没有穿线条件，如果千分表处于不断摆动的状态，它表示THK直线导轨螺杆已经摇动。对于千分表，最大测量值和最小测量值之间的差值是导螺杆。
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THK直线导轨出现损坏时的补救方法
THK直线导轨从开始使用到第一个材料疲劳现象出现的这段期间长短是和导轨的转数、负载大小、润滑及乾净度有关。疲劳是THK直线导轨负载表面下剪应力周期性出现所形成的结果。经过一段时间后，THK直线导轨的这些剪应力便引发微小的裂罏，然后渐渐地延伸至THK直线导轨的表面，当THK直线导轨滚动件经过这些裂罏后，便有些裂块脱落，形成所谓的剥皮现象。然后随著THK直线导轨剥皮的情况继续扩大，THK直线导轨即损坏且不堪使用。以上是有关THK直线导轨疲劳的描述，最初发生是位于表面以下。
虽然THK直线导轨最初的剥皮情况通常是非常的轻微，但是随着THK直线导轨应力的增加及裂块的增多，导致剥皮面积的蔓延，这种破坏型式的过程通常持续很长的一段时间，其明显可见的阶段是在嗓音及振动增加的时候。
当THK直线导轨有以上现象时，您可以采取以下的办法来补救，这样可以适当延长THK直线导轨的使用寿命：
日本THK直线导轨的分类
日本THK直线导轨可分为开式和闭式两种，其中闭式的THK直线导轨可通过施加预加载荷来提高THK直线导轨的接触刚度和抗振性。按THK直线导轨滚动体的类型，THK直线导轨可分为滚珠、滚柱、滚针和滚动导轨支撑等形式。
THK滚珠导轨适用于运动部件重力不大于2000N，切削力和颠覆力矩都较小的机床。如工具磨工作台导轨；磨床砂轮修整器导轨。
THK滚珠导轨的特点是结构紧凑、制造容易、成本低、钢度低及承载能力小。
THK滚柱导轨的承载能力和钢度都比THK滚珠导轨大。
THK燕尾形滚柱导轨其结构紧凑，调节方便，但其制造劳动量大，装配精度不便检查。适用空间尺寸不大。
THK十字交叉滚柱导轨的截面为正方形的空腔。THK导轨滚柱装在空腔里，相邻滚柱的轴线交叉成90度。这样THK十字交叉滚柱导轨在哪个方向上都有承载能力。为了减少端面摩擦，THK十字交叉滚柱导轨滚柱的长应略短于其直径（小于0.15—0.25mm），THK十字交叉滚柱导轨滚柱由保持器隔开。THK十字交叉滚柱导轨特点是，精度高、动作灵敏、钢度高及结构比较紧凑，但制造较困难。
在THK滚柱导轨中，直线导轨的滚柱对导轨平行度要求高，因为微小的平行度误差都会引起滚柱的偏移和侧向滑动，降低了精度。因此THK滚柱导轨的滚柱做成腰鼓形，中间直径比两端大0.02mm左右。
THK滚柱导轨适用于载荷较大的机床，是应用最为广泛的一种THK直线导轨。THK滚柱导轨的特点是有较大的承载能力和较高的钢度，但加工精度要求高。
THK开式滚柱导轨：其结构简单，制造方便，应用较多，导轨面可配制或配磨。THK开式滚柱导轨一般采用淬火钢镶装导轨。在无冲击载荷，运动不频繁，防护条件较好时，也可采用铸铁导轨。
THK丝杠 DCMA型和DCMB型梯形丝杠的结构
THK梯形丝杠DCMA型和DCMB型具有机械加工很难实现的45°导程角，此款THK梯形丝杠可以高效率将直线运动转换为旋转运动，或将旋转运动转换为直线运动。由于THK DCMA型和DCMB型梯形丝杠导程较大，最适合以低速旋转制造快速进给机构。与此款THK梯形丝杠组合使用的多头丝杠轴采用冷轧加工成型，齿面加工硬化后表面硬度超过250HV，并经过镜面抛光，因此与THK梯形丝杠组合使用时运动极为顺畅，具有优异的耐磨性。另外，THK梯形丝杠 DCMA40型、THK梯形丝杠 DCMB40型以上的产品与切削丝杠轴配合使用。
微型THK梯形丝杠是用含油塑料制造的，具有较好的耐磨损性，尤其在无润滑工作条件下具有优异的润滑性。并且，由于THK梯形丝杠优良性能能够长时间维持，因此可以有较长的免维护使用周期。
