1The linear guide has high precision, smooth surface and low friction, and stable performance during use, which provides convenience for working and reduces errors. 2The highquality bearing steel is used, the friction coefficient is low, and the bearing is placed on the guide rail to slide without resistance, which is convenient to use. 3Used in CNC parts, 3D printer parts, semiconductor manufacturing equipment, printed circuit boards, IC assembly equipment, medical equipment, robotic arms and other equipment. 4Professional technical guide rails and stoppers are suitable for most automation equipment, small linear motion machinery, and linear motion measurement equipment. 5The linear guide bearing is Type MGN15, the guideway width is 15 mm/0.59 in, the guideway hole spacing is 40 mm/1.57 in, the slider size is 32 x 42.1 mm/ 1.26 x 1.65 in, and the slider hole spacing is 25 x 20 mm/ 0.98 x 0.78 in. Item Type: Miniature Linear Rail Material: Bearing Steel Model: MGN15 Rail Width: Approx. 15 mm / 0.59 in 1 x Miniature Linear Rail