High Torque Reversible PMDC Motor 12V Low Speed 30 RPM Planet Reducer Motor Metal Planetary Geared Box Out Shaft 12mm Rated voltage: DC12V; No-load speed: 30RPM; Rated torque: 31kg.cm; stall Torque: 92kg.cm; Reduction ratio: 1/104; Rated Current: 2.5A; Certification: CE; Direction of rotation: CW/CCW; Total Gear Motor Length(Approx): 145mm/ 5.7"; Out Shaft: 12*28mm / 0.47" x 1.1"(D*L); Material: Metal, Electronic Parts; Keyway: 19*4mm / 0.748" x 0.157"; Commutation: Brush; Package: 1PCS x DC Planetary Geared Motor; there are many other models of this motor in store, if you need, pls contact us.