The DF (45- ° 45) ° combination from the circular arc groove can be absorbed by the wire rail slider even if there is some deviation on the mounting surface due to the elastic deformation of the steel ball and the transfer of the contact point during the installation of the linear guide rail, so as to produce the effect of automatic centering and obtain high-precision, stable and smooth movement.

1、具有互换性；；由于对生产制造精度严格管控，直线导轨尺寸能维持在一定的水准内，且滑块有保持器的设计以防止钢珠脱落，因此部份系列精度具可互换性，客户可依需要订购导轨或滑块，亦可分开储存导轨及滑块，以减少储存空间。

1. Interchangeable;; Due to the strict control over the manufacturing accuracy, the size of the linear guide rail can be maintained within a certain level, and the slider is designed with a retainer to prevent the steel ball from falling off. Therefore, some series of accuracy are interchangeable. Customers can order the guide rail or slider as required, or store the guide rail and slider separately to reduce the storage space.

直线导轨组装；2、所有方向皆具有高刚性

Linear guide rail assembly; 2. High rigidity in all directions

运用四列式圆弧沟槽，配合四列钢珠等45度之接触角度，让钢珠达到理想的两点接触构造，能承受来自上下和左右方向的负荷；在必要时更可施加预压以提高刚性。

The four row circular arc groove is used to match the 45 degree contact angle of the four rows of steel balls, so that the steel balls can reach the ideal two-point contact structure and can bear the load from the up and down and left and right directions; If necessary, preloading can be applied to improve rigidity.

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