Tamiya Twin-Motor Gear Box

Works great for our Rover. Bought extra as a backup just in case something went wrong before the tech fair. So far so good!

I knew and own this product before but needed another and wanted to test first and good experience with RobotShop again and they delivered. Price is about the same as a well known online seller of everything but they are not in the motor gearbox business so I'm happy to see I've found my new supplier in RobotShop.

This was good for my needs. Yes, the gears are plastic and the motor is cheap, so if you're looking for durable motors that need to operate at high torque, find something else. However, this was perfect for my needs in constructing a path finding bot.

Smaller than expected

I'm using this gear set for a robot heating duct crawler I made to video inspect my ducts. Using it with RB-Tam-26 Tamiya narrow tire set, although I hack sawed down the wheel shafts by 1/2" to give the crawler a narrower profile. The gear box and be re-assembled, if you are unhappy with the initial gear ratio. There are 3 configurations, but only 2 different gear ratios. The only con, is the motors run at 3V. Keep this in mind if you are trying to hit a specific speed. But at this low voltage, you get more current loses. Otherwise, would have given it 5 stars.