Rated voltage: 12V Speed parameters: Ordinary model: no load speed 130 RPM (plus or minus 5%), load 7 kg (per cm), 70 rpm, locked rotor torque 20 kg Gasket type: 6-7 rpm at 12V; 13 rpm at 24 V Torque: 2.5kg Reduction ratio: 1:86 Motor diameter: 32.8mm Motor length: 22mm Fixed aperture: 3mm (M3 screw) Reducer diameter: 37mm Reducer length: ordinary type: 24mm; Gasket size: 25mm Step height: Ordinary: 6mm; Gasket: 4.5mm Shaft length: Ordinary: 15mm; Gasket size: 19mm Motor shaft diameter: 6mm, D-type shaft (pin edge 0.65mm)