Specification: Name:SFU1605 Ball ScrewType: SFU1605Material: Stainless steelLength ball screw:550mmFeatures:High transmission efficiency, high positioning accuracy and repeatability of positioning accuracy,long life, high stiffness, drive transmission reversibility reversibility.Fused with shiny surface matching with high precision. More resistant to wear and tear,greatly extending the life cycle of the ball screw life increased several times.Package included:1 x SFU1605-550mm Ball screw1 x Nut