Tamiya 70103 Universal Gearbox Kit

Tamiya 70103 Universal Gearbox Kit
Pololu item #: 69 26 in stock

Price break Unit price (US$)
1 7.59 8.75
10 7.25
50 6.85


backorders allowed

Unlike the other gearboxes in Tamiya’s series, the universal gearbox has a thin metal frame, making it the smallest Tamiya gearbox. The final two gears are metal, making for a tough output. A worm gear allows for the high gear ratio options of 101:1, 269:1, and 719:1.

 Description Specs (6) Pictures (5) Resources (3) FAQs (6) On the blog (0) 

Documentation and other information

Tamiya Gearbox Gear Ratio Comparison

Table comparing the gear ratios available in the many different Tamiya gearboxes we carry.

Tamiya “Toy” Motor Testing by Adam Borrell (a.k.a nexisnet) (Printable PDF: tamiya_toy_testing.pdf)

Adam, who posts under the username nexisnet on the Pololu forums, has performed a detailed series of experiments to determine how operating voltage affects the lifetime of the Mabuchi FA-130 motor, which happens to be the motors used in the Tamiya 70168 Double Gearbox, 70167 Single Gearbox (4-Speed), 70097 Twin-Motor Gearbox, 70093 3-Speed Crank-Axle Gearbox, 70110 4-Speed Crank-Axle Gearbox, and 70103 Universal Gearbox.