Features Made of high quality metal with durable construction Linear motion, with a small frictional resistance Linear shaft diameter is 12mm/0.47inch, and the effective stroke is 400mm/15.75inch High precision, exquisite craft, smooth surface Long life, low coefficient of friction, high versatility Package Included: 1 x Ball Screw Slide with a Stepper Motor Specifications: Material: Aluminum Boundary dimension: 40mm Shaft diameter: 12mm / 0.47inch Rated vertical load: 18KG Rated horizontal load: 60KG Accuracy: 0.03-0.05mm Effective stroke: 400mm / 15.75inch Ball screw length: 465mm Sliding block: 60 x 80 x 30mm / 2.36 x 3.15 x 1.18inch Length: 57cm / 22.4in Screw: M6 Slide table size: 490 x 40 x 20mm / 19.29 x 1.57 x 0.79inch Weight: Approx. 2075g Package List