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、具有互換性；；由于對生產制造精度嚴格管控，直線導軌尺寸能維持在一定的水準內，且滑塊有保持器的設計以防止鋼珠脫落，因此部份系列精度具可互換性，客戶可依需要訂購導軌或滑塊，亦可分開儲存導軌及滑塊，以減少儲存空間。

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.

直線導軌組裝；2、所有方向皆具有高剛性

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

運用四列式圓弧溝槽，配合四列鋼珠等45度之接觸角度，讓鋼珠達到理想的兩點接觸構造，能承受來自上下和左右方向的負荷；在必要時更可施加預壓以提高剛性。

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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