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, 1200rpm~30rpm, stall torque 1~7Kg.cmType: MG20E-12600-25Features:
Voltage: 6-12 Volts
Gear Ratio: 25:1
Stall Torque:1.2Kg.cm (12V)
No load Speed: 600RPM (12V)
No Load Current: 200mA (12V)
Rated: 0.8Kg.cm,450rpm,1.3A
Stall Current: 4A (12V)AB phase 11ppr Hall Sensor Encoder(data sheet at: 6V 290rpm 25:1 )