In many applications, precision determines efficiency, quality, and process reliability. That is why we offer our double tube linear units in three precision levels, perfectly tailored to the specific application:

Positioning accuracy describes how precisely a target position can be reached.
Depending on the drive type, we achieve the following maximum deviations (based on a 300 mm stroke):
 

• Trapezoidal lead screw: ±0.1 mm
• Fine-pitch lead screw: ±0.1 mm
• Ball screw: ±0.05 mm
 

Linear units of precision level 1

Tubes with spindles of all PD versions in 1ST (steel) or 1ED (stainless steel) configurations

Linear units of precision level 2

Solid shafts with ball bushings and spindles of all PD versions in 2ST (steel) or 2ED (stainless steel) configurations in Ø25 and Ø40
 

Linear units of precision level 3

Solid shafts with recircuatieng ball screws and ball bushings in 3ST (steel) or 3ED (stainless steel) configurations