12V 120rpm 78

The 20mm 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 12.5:1 to 488:1, 780rpm~20rpm, stall torque 0.7~6Kg.cmType: MG20B-120120-78Features: Voltage: 6-12 Volts Gear Ratio: 78:1 Stall Torque:5.0kg.cm (12V) No load Speed: 120RPM (12V) No Load Current: 160mA (12V) Rated: 2Kg.cm,80rpm,550mA Stall Current: 2.5A (12V)(data sheet at: 12V 780rpm 12.5:1 )