12V 640rpm 9.3:1

The 25mm general gearmotors are widely used on Intelligent robots,intelligent manipulators, intelligent furnitures, Intelligent focusing systems etc. Those are incredibly tough and feature full metal gears. Have  gear ratio 4.4:1 to 478:1,2700rpm~25rpm, stall torque 1.8~12Kg.cm Type: MG25B-120640-9 Features: Voltage: 6-12 V Gear Ratio:9.3:1 Stall Torque: 1.1Kg.cm (12V) Stall Current: 0.8A (12V) No load Speed: 640RPM (12V) No Load Current: 80mA (12V) Rated torque: 0.35Kg.cm, Rated Speed: 480rpm, Rated Current: 0.25A Size:25*49.8(gearhead length 19mm) (data sheet at: 12V 1360rpm 4.4:1 )