The Tamiya 72102 gear head motor and pin spike
tire set is part of Tamiya's new line of products designed specifically
for robots. The 380-size motors are substantially larger than the 130-
and 260-size motors found in the smaller Tamiya gearbox kits, making
this drive set capable of moving medium-sized robots weighing up to
approximately 10 pounds. The set consists of two motors with gearboxes,
two aluminum mounting brackets, two hubs, and two wheels, along with
assorted mounting hardware.
For a similar item with smaller foam wheels and
tires, see the Tamiya 72101 gear head motor
and sponge tire set.
The larger motors in the 72102 set require a more
powerful motor driver capable of driving in excess of 10 amps (the stall
current is about 12 A at 7.2 V). The Pololu dual high-current motor
drivers are a good match for these motors; we recommend the VNH2SP30
version due to its higher performance and current sensing option. Please
note that although the 380 motors look like the 540 motors typically
used in 1/10-scale radio control models, the 380 motors are
substantially smaller than the 540 motors.
- Recommended voltage: 7.2 V (6-cell Ni-based pack)
- No-load speed: 242 RPM
- No-load current: 0.67 A
- Stall current: 12 A
- Single motor + gearhead weight: 180 g
- Wheel dimensions: 60 mm wide x 130 mm diameter
|Note: The Tamiya 72102 gear head motor and
pin spike tire set is a kit; assembly is required. You
will need to provide your own electronics (motor driver) and all
other mechanical components to build a robot.