直线导轨和滚动导轨的结构形式是怎么样？其实直线导轨时属于滚动导轨的一种而已，滚动导轨是一种滚动导引，它由钢珠在滑块与滑轨之间作无限滚动循环，使得负载平台能沿着滑轨轻易的以高精度作线性运动，其摩擦系数可降传统滑动导引的1/50，使之能轻易地达到μm级的定位精度。所以创盈彩网址对于以下二者的结构做了总结:
What is the structure of linear guide and rolling guide? In fact, the linear guide rail belongs to a kind of rolling guide rail. The rolling guide rail is a kind of rolling guide rail. It uses steel balls to make infinite rolling cycle between the slide rail and the slide rail, so that the load platform can easily make linear motion with high precision along the slide rail, and its friction coefficient can be reduced to 1 / 50 of the traditional sliding guide rail, so that it can easily achieve the positioning accuracy of μ m level. Therefore, Jinan gongrun Technology Co., Ltd. summarizes the structure of the following two:
滚珠导轨因其在功能性能上不一样，所以可以分为以下几点：
The ball guide rail can be divided into the following points due to its different functional performance:
滚珠导轨
Ball guide
导轨以滚珠作为滚动体，运动灵敏度好，定位度高；但其承载能力和刚度较小，一般都需要通过预紧提高承载能力和刚度。为了避免在导轨上压出凹坑而丧失精度，一般采用淬火钢制造导轨面。滚珠导轨适用于运动部件质量不大，切削力较小的数控机床。
The guide rail uses the ball as the rolling body, which has good motion sensitivity and high positioning; however, its bearing capacity and stiffness are small, which generally need to be improved by pre tightening. In order to avoid the loss of accuracy due to the indentation on the guide rail, the guide rail surface is generally made of hardened steel. The ball guide is suitable for CNC machine tools with small moving parts and small cutting force.

滚柱导轨
Roller guide
导轨的承载力及刚度都比滚珠导轨要大，但对于安装的要求也高。安装不良，会引起偏移和侧向滑动，使导轨磨损加快、降低精度。目前数控机床、特别是载荷较大的机床，通常都采用滚柱导轨。
The bearing capacity and rigidity of the guide rail are greater than that of the ball guide rail, but the installation requirements are also high. Poor installation will cause deviation and lateral sliding, which will speed up the wear of guide rail and reduce the accuracy. At present, CNC machine tools, especially those with large load, usually use roller guide.
滚针导轨
Needle guide
滚针导轨的滚针比同直径的滚柱长度更长。滚针导轨的特点是尺寸小，结构紧凑。为了提高工作台的移动精度，滚针的尺寸应按直径分组。滚针导轨适用于导轨尺寸受限制的机床上。
The needle length of needle guide rail is longer than that of roller with the same diameter. The needle rolling guide rail is characterized by small size and compact structure. In order to improve the moving accuracy of the worktable, the size of the needle should be grouped according to the diameter. Needle roller guide is suitable for machine tools with limited guide size.