Tamiya 4-Speed Double Gear Box (Left/Right Independent)

TamiyaSKU: RB-Tam-32
Manufacturer #: 70168

Price  :
Sale price ¥1,511

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Stock  :
Only 2 units left

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  • Gear Ratios: 12.7: 1, 38.2:1, 114.7:1 or 344.2:1
  • Motor: FA-130 
  • Motor RPM: 6990-9100 (6990 Maximum Efficiency)
  • Motor Voltage: 1.5-3V (1.5V Recommended) (4.5 V Max)
  • Motor Current: .66A
  • Motor Stall torque: 4.6 g-cm
  • Comes unassembled

The Tamiya 4-Speed Double Gear Box is perfect for use in all your robot projects. It offer a choice of 4 gear ratios and offers emphasis on speed or power to suit your needs. Left/right independent design means you can set different gear ratios for either side.

Includes motor cover and crank arm. Case and gear made from durable plastic.

Customer Reviews

Based on 8 reviews
Very happy with RobotShop

I'm testing all sorts of motor gearboxes so the product performs fine for what it's supposed to but the main test here was to see how RobotShop operated and I'm very pleased with this second order, I will be using them for my supply of motor gearboxes whichever model(s) I decide on.


I've not put this into anything perminately, but I've had some fun with the several "toys" I've experimented with. Low cost + high quality = This is going to become a staple for my projects.

Does what it should

Little plastic gears, but for this price more than fair. If you need a bit more rpm use FC 130RA/SA motors from Mabuchi.

Good product for the price

I found the quality of the product to be very good and I like that you can choose from multiple gear ratio options. I plan to use this gearbox to build an R/C tank. The only complaint would be that the grease provided for the gears came in a tiny tube and I found it difficult to evenly apply it to the gears. I basically ran out of grease before I could apply it to all of the recommended areas.

Jean P
Excellent product for the money.

Inexpensive and good quality for the price. Lots of gearing options.

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