All-metal Miniature Lead Screw Sliding Table Stepper Motor $ 4.55 Product information: Rated voltage 3v Applicable object mechanical equipment Stepper motor diameter: 5mm Gear motor length: 12.1mm Nut travel: about 8.5mm Total length: 30.4mm (motor slider) Total width: 15.2mm Planetary gear box: Secondary metal planetary gear Gear ratio: 1:20 Phase resistance: 14 Ohm Output torque: 300g Size: Packing list: Motor*1 Product Image: