Tamiya’s 3-speed crank-axle gearbox looks very much like half of the twin-motor gearbox (with an added gear ratio option). This compact gearbox can be built in one of three gear ratios (17:1, 58:1, and 204:1), and is Tamiya’s cheapest, general-purpose gearbox.
Compare all products in Tamiya Motors and Gearboxes or
3mm Shaft Gearmotors or
Tamiya Gearboxes with 3mm Hexagonal Shafts.
General specifications
|
Typical operating voltage:
|
3 V
|
|
Gear ratio options:
|
17:1, 58:1, and 204:1
|
|
Free-run motor shaft speed @ 3V:
|
12300 rpm1
|
|
Free-run current @ 3V:
|
150 mA2
|
|
Stall current @ 3V:
|
2100 mA
|
|
Motor shaft stall torque @ 3V:
|
0.5 oz·in3
|
|
Color:
|
gray
|
Notes:
- 1
- A theoretical speed of the gearbox output shaft can be computed by dividing this speed by the gear ratio.
- 2
- This is the no-load current of the motor when disconnected from the gears in the gearbox; the no-load current of the entire gearbox with the motor connected will be slightly higher and will vary depending on the gear ratio.
- 3
- A theoretical torque of the gearbox output shaft can be computed by multiplying this torque by the gear ratio.