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-120080-74
Features:
Voltage: 6-12 V
Gear Ratio:74.8:1
Stall Torque: 9Kg.cm (12V)
Stall Current: 0.8A (12V)
No load Speed: 80RPM (12V)
No Load Current: 80mA (12V)
Rated torque: 3Kg.cm (12V)
Rated Speed: 60rpm (12V)
Rated Current: 0.25A (12V)
Size:25*53.8(gearhead length 23mm)
(data sheet at: 12V 1360rpm 4.4:1 )