With possible gear ratios of 41.7:1 and 64.8:1, the high-power gearbox is well-suited for most vehicles that require a balance of speed and torque.
We can ship 29 more in 7-10 days
Our Code: SKU-002325
Supplier Link: [Pololu MPN:72]
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 1.5-4.5 volts and draw up to a few amps, making them perfect candidates for the DRV8833 motor driver carrier. Motor overheating can be caused by excessive stalling, even at very low voltages. We recommend that you use stall-detection sensors, or just watch your robot, to make sure that it doesn’t stall for more than a few seconds at a time.
This gearbox has a 4 mm diameter, round output shaft, which works with the wheels that are compatible with Tamiya 4 mm, round shafts. Our 3 mm universal mounting hub also fits on the smaller threaded end of the shaft, although it is not specifically intended to work with this type of shaft (the hub’s set screw could damage the thread on the shaft).
Note: The high-power gearbox is a kit; assembly is required. To use the kit in robotics projects, you need to connect the motors to your own robot controller.
|Typical operating voltage:||3 V|
|Gear ratio options:||41.7, 64.8 :1|
|Free-run motor shaft speed @ 3V:||9400 rpm1|
|Free-run current @ 3V:||150 mA2|
|Stall current @ 3V:||2700 mA|
|Motor shaft stall torque @ 3V:||0.97 oz·in3|
Table comparing the gear ratios available in the many different Tamiya gearboxes we carry.