... ; Stainless liner shaft, Hollow shaft, perforating shaft,piston rod, Linear Guide Shaft; Materials: SUJ-2Hardness: HRC Above 60Roughness: 1.2S( ... presses, automatic cutting machines and automatic industrial machines;Stainless Steel Linear ShaftMaterials: -Stainess steelHardness: 52-56HRCRoughness: 1.2S(Rmax)Plating: - ... : 1.2S(Rmax) Plating: 20um-30um Straightness: 50um/1000mm Linear cnc guide shaft