This is a powerfull motor fitted with a 75:1 gearbox. The gears are all steel.
Output shaft = 4mm dia.
Voltage = 6V
Speed = 133rpm
No load current = 0.35 A
Stall current = 5.5 A
Stall torque = 8.8 Kg/cm
Motor RPM = 10,000 +/- 5%.
These gearmotors have output shafts with a diameter of 4 mm. The Pololu universal aluminum mounting hub for 4mm shafts can be used to mount our larger Pololu wheels or custom wheels and mechanisms to the gearmotor’s output shaft (see the picture below). These same motors shaft works directly with the 120mm-diameter Wild Thumper wheels (see below). These motors are intended for use at 6 V. In general, these kinds of motors can run at voltages above this nominal voltage, so they should comfortably operate in the 6 – 8 V range. Higher voltages could start negatively affecting the life of the motor.
These motor matches the monster wheel & brass fittings
The left picture below shows this wheel mounted to a universal mounting hub for 4mm shafts.