Super Slim body is useful for saving space because of combination of Hollow Motor + BSSP (Miniature Ball Screw with Ball Spline).
No wear powder from Belt & Pulley because of Direct Drive structure.
Minimum number of components leads to simple design & saving space.
In case of 42 size Motor, not only Linear (Z) and Rotary (Θ;theta) motion but also Vacuum (V) function are available.