Surface Roughness : Ra 0.2 Torque Capacity : M20X47X66.1 mm Structure : Deep Groove Model Number : CF20-1/KR47 Coatings : No Material : Stainless Steel Model : CF20-1/KR47 Accuracy level : ABEC-7 Screw Outer Diameter : M20 Outer Diameter : 47 mm Length : 66.1 mm Weight : 480 g Bearing material : Stainless Steel AISI304 Welcome to Lingfeng Store