SFH SFA Screw H Type Ball Screw Parts https://www.hyballscrew.com/product/ball-screws/ When selecting a ball screw, it is the most basic principle to investigate the operating guarantee as much as possible before deciding on the design. Moreover, the selected elements include load weight, stroke, torque, positioning accuracy, repeat positioning accuracy, rigidity, lead, nut aperture, etc. All elements are related, and a change in one element will cause changes in other elements. we must pay attention to the balance between the various elements.