Models View all Ball screw (SFU1605) 83 3927 37 Profile 40x40 43 2887 0 Ball screw nut housing (DSG16H) 46 2814 2 Stepper motor NEMA 23 (CS-M22323) 30 2258 3 Profile 40x80 19 1287 1 Stepper motor NEMA 23 (iCS-2323) 15 815 0