The structure and advantages of the guide rail

鋼球沿著LM軌道和LM滑塊上經精密研磨加工而成的4列滾動面進行滾動；通過球保持器與組裝在LM滑塊上的回球器，使鋼球列作循環運動。

The steel ball rolls along the LM track and LM slider, which are precision ground and processed into four rows of rolling surfaces; By using the ball holder and the ball return device assembled on the LM slider, the steel ball column moves in a circular motion.

為使LM滑塊上的4個作用方向（徑向反徑向和側向）均具有相同的額定載荷，各鋼球列被設計成按接觸角45°配置，因此無論何種姿勢都可以使用。

In order to ensure that the four action directions (radial, anti radial, and lateral) on the LM slider have the same rated load, each steel ball column is designed to be configured with a contact angle of 45 °, so it can be used in any posture.

并且因能施加均等的預壓，從而既能一邊維持較低的磨擦系數，又加強了4個方向的剛性。同時,因斷面高度低,并且對LM滑塊進行了高剛性設計,從而能獲得穩定的高精度直線運動。

And due to the ability to apply equal preload, it can maintain a lower coefficient of friction on one side and strengthen the rigidity in all four directions. Meanwhile, due to the low cross-sectional height and the high rigidity design of the LM slider, stable and high-precision linear motion can be achieved.

4方向等負荷

4-direction equal load

為使LM滑塊上的4個作用方向（徑向反徑向和側向）均具有相同的額定載荷，各鋼球列被設計成按接觸角45°配置，因此無論何種姿勢都可以使用,用途廣泛。

In order to ensure that the four action directions (radial, anti radial, and lateral) on the LM slider have the same rated load, each steel ball column is designed to be configured with a contact angle of 45 °, so it can be used in any posture and has a wide range of applications.

低高剛性

Low center of gravity and high rigidity

通過對LM軌道橫斷面尺寸的小型化，使變低，同時實現了高剛性。

By miniaturizing the cross-sectional size of the LM track, the center of gravity is lowered while achieving high rigidity.

自動調心能力

Automatic centering ability

由于THK獨特的圓弧溝槽的正面組合（DF組合）具有自動調力,即使施加預壓也能吸收安裝誤差,從而得到高精度平滑穩定的直線運動。

Due to THK's unique circular groove front combination (DF combination) with automatic adjustment ability, it can absorb installation errors even when pre pressing is applied, resulting in high-precision, smooth and stable linear motion.

世界標準尺寸

World standard size

的尺寸設計以由直線運動系統之先驅THK所開發的事實上以成為世界標準的全鋼球LM滾動導軌HSR型為基準。

The size design is based on the fact that the HSR type of all steel ball LM rolling guide rail, developed by THK, a pioneer in linear motion systems, has become a world standard.