Unlike the other gearboxes in Tamiya's series, the
universal gearbox has a thin metal frame, making it the smallest Tamiya gearbox.
The final two gears are metal, making for a tough output. A worm gear allows for
the high gear ratio options of 101:1, 269:1, and 719:1. The main output shaft
can be oriented in four different directions, and a small, auxiliary output
shaft turns perpendicularly to the main output shaft.
The motor is rated for 3 volts but will typically work
fine up to 6 volts. When using this product with the dual serial motor
controller (or any motor driver based on an H-bridge), keep in mind that up to a
few volts (depending on the load) are lost on the transistors of the H-bridge,
so that a 4.5 volt battery delivers about 3 volts to the motors, giving them a
reasonble amount of power. 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.
The 3mm, hexagonal output shaft is compatible with all
four types of Tamiya
|Note: The universal 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.
Click here to
compare these gearboxes.