Tamiya 70168 Double Gearbox Kit
- Brand: Pololu
- Product Code: RB-04M018
- Availability: 14
- Sales Volume: 55
The Tamiya double gearbox is a compact unit with two independent motors and gear trains. The kit includes two motors and all gears and parts to build any of the four possible gear ratio configurations (12.7:1, 38:1, 115:1, and 344:1). Although it is not typical, it is possible to assemble each side with different gear ratios. There are two possible output axle locations (for any given gear ratio, only one output location is possible).
The double gearbox is very similar to the Tamiya 70097 twin-motor gearbox, as shown in the picture to the right. The gear ratio options of the two products complement each other well, but the mounting holes and overall dimensions vary slightly. The double gearbox is shorter and wider than the twin-motor gearbox, and the gears are a bit smaller and wider. This should make the double gearbox a bit more robust, though we have not heard any reports of the twin-motor gearbox gears breaking.
Note: The double 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.