Surface Roughness : Ra 0.2 Torque Capacity : M5X13X23 mm Structure : Deep Groove Model Number : CF5/KR13 Material : Stainless Steel Model : CF5/KR13 Accuracy level : ABEC-7 Screw Outer Diameter : M5 Outer Diameter : 13mm Length : 23 mm Weight : 10.8g Bearing material : Stainless Steel AISI304 Welcome to Lingfeng Store