SL系列使用四列钢珠承受负荷设计，使其具备高刚性、高负荷的特性，同时具备四方向等负载特色、及自动调心的功能，可吸收安装面的装配误差，得到高精度的要求;加上降低组合高度及缩短滑块长度，非常适合高速自动化产业机械及空间要求的小型设备使用。
滑块上设有钢珠保持器以防止钢珠脱落，此设计不仅方便客户安装线性滑轨，当取下滑块时亦不会有钢珠脱落的情形发生，且在精度允许下具备互换性。
The SL series uses four rows of steel balls to withstand the load design, so that it has high rigidity and high load characteristics. It also has four-direction load characteristics and sel-aligning function, which can absorb the assembly error of the mounting surface and obtain high precision requirements. In addtion, the combination height is reduced and the length of the slider is shortened, which is very suitable for use in small equipment for high-speed automation industry machinery and space requirements.
A steel ball retainer is provided on the slider to prevent the steel ball from flling off. This design not only faclltates the instalation of the linear slide rail, but also does not cause the steel ball to fall off when the slider is removed, and is interchangeable with precision.
