1Made of high quality metal with durable construction 2High precision, exquisite craft, smooth surface 3Long life, low coefficient of friction, high versatility 4Linear motion, with a small frictional resistance 5Linear shaft diameter is 12mm/0.47inch, and the effective stroke is 100mm/3.9inchFeatures: Made of high quality metal with durable construction. High precision, exquisite craft, smooth surface. Long life, low coefficient of friction, high versatility. Linear motion, with a small frictional resistance. Linear shaft diameter is 12mm/0.47inch, and the effective stroke is 100mm/3.9inch. Specifications: Material: Aluminum Boundary dimension: 40mm Shaft diameter: 12mm / 0.47inch Rated vertical load: 40KG Rated horizontal load: 60KG Accuracy: 0.01mm Effective stroke: 100mm / 3.9inch Ball screw length: 165mm Sliding block: 60 x 80 x 30mm / 2.36 x 3.15 x 1.18inch Pitch-row width: 68mm (max) Pitch-row length: 60mm Screw: M6 Slide table size: 190 x 40 x 20mm / 7.48 x 1.57 x 0.79inch Weight: Approx. 1432g Package Included: 1 x Ball Screw Slide with a Stepper Motor