... 80mm. Lead: ,5mm, 10mm ,20mm etc. Ball screw is consisted of screw, nut and balls. It is to transfer the ... or transfer the linear motion into rotary motion. Ball screw is widely used for all kinds of industrial ... not rolled, and it has two kinds of ball screw, P for positioning and T for transmission, accuracy ... the highest and 7 is the lowest. Model: SFU(single nut with flange, no preload) Dia.: 12mm-80mm ...