MGN12C Linear Guide Rail Stainless Steel High Accuracy 4 Point Contact Linear Rail Slide with 2 Sliders for 3D Printer 400mm / 15.75in Item Type: Linear Guide Rail Material: Stainless Steel Slider Size: Approx. 34.7 x 27 x 10mm / 1.37 x 1.06 x 0.39in Basic Dynamic Rated Load: C: 2.84 (k/N) C0: 3.92 (k/N) Allowable Static Moment: MR: 25.48 (N-m) MP: 13.72 (N-m) My: 13.72 (N-m) Sliding Track: Linear guideway Number of Sliders:2 Accuracy Grade:H Slider Fixing Mode: Upper locking type Features: 1. MGN series is small and lightweight, especially suitable for miniaturized equipment; 2. The material of slider and slide rail is bearing steel, which has the characteristics of bearing steel, non slip and durable. 3. Gothic four point contact design, can withstand the load in all directions, with strong rigidity, high accuracy and other characteristics. 4. With steel ball keeper design, interchangeable under the accuracy;