The High Power Gear Box, High Efficiency, works well when extra torque is necessary. Two gear ratios are possible, and a RE-260 motor is included. Several types of crank arms are included for extra flexibility in design.
The Tamiya 72003 high-power gearbox can be built in a gear ratio of 41.7:1 or 64.8:1, making it well-suited for most vehicles that require a balance of speed and torque.
The low-voltage motors in the high-power gearbox run on 3-6 volts and draw up to a few amps. Motor overheating can be caused by excessive stalling, even at very low voltages. Make sure that it doesn’t stall for more than a few seconds at a time.
This gearbox has a 4 mm, round output shaft, which works with the wheels that are compatible with Tamiya 4 mm, round shafts.
Tamiya makes a variety of gearboxes that are perfect for building small robots.The following table shows the different gear ratios supported by each model to help you select the Tamiya gearbox that best fits your needs.
Download the table of all the various TAMIYA GearBoxes gear ratios