DC Motor with Gear Box JGA25-370-12V-133RPM 8.8Kg.cm

From the shop's description

This is 12V DC motor, almost double the power of our 6V DC motor. It is a powerfull motor fitted with a 75:1 metal gearbox. The gears are all steel and the output shaft is 4mm diameter. The motor has extra rear shaft (on the high speed side, before the gearbox) which allow you to mount motor encoder for RPM counting and superior control. Voltage = 12V No load current = 250mA Sall Current = 3.3 A Stall Torque = 8.8 Kg/cm Motor Rated RPM = 133 Shaft Diameter = 4 mm Motor Length (without shaft) = 52 mm Motor Diameter = 25 mm