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Tamiya 70103 Universal Gearbox Kit

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.

Compare all products in Tamiya Motors and Gearboxes or Tamiya Gearboxes with 3mm Hexagonal Shafts.

	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)

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.

File downloads

Mabuchi motor FA-130 datasheet (see model #18100) (58k pdf)

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