Tamiya Gearboxes with 3mm Hexagonal Shafts

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Tamiya 70110 4-Speed Crank-Axle Gearbox Kit
On sale!
Pololu item #: 68
Price: $8.29 $11.00
Quantity:

Tamiya 70110 4-Speed Crank-Axle Gearbox Kit

This gearbox has four possible gear ratios, including the highest gear ratio of Tamiya’s gearbox series, 5402:1. The other options are 126:1, 441:1, and 1543:1. This gearbox also features a worm gear, which locks the output shaft when the motor is not turning.

Tamiya 89916 4-Speed Crank-Axle Gearbox Kit - Clear
Pololu item #: 1679
Price: $7.95
Quantity:

Tamiya 89916 4-Speed Crank-Axle Gearbox Kit - Clear

This gearbox has four possible gear ratios, including the highest gear ratio of Tamiya’s gearbox series, 5402:1. The other options are 126:1, 441:1, and 1543:1. This gearbox also features a worm gear, which locks the output shaft when the motor is not turning.

Tamiya 70103 Universal Gearbox Kit
On sale!
Pololu item #: 69
Price: $7.59 $8.75
Quantity:

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.

Tamiya 70167 Single Gearbox (4-Speed) Kit
On sale!
Pololu item #: 118
Price: $7.55 $8.75
Quantity:

Tamiya 70167 Single Gearbox (4-Speed) Kit

The single gearbox is perfect if you like the gear ratio options of the 70168 double gearbox but need just one motor or added flexibility in positioning multiple output shafts. Available gear ratios are: 12.7:1, 38:1, 115:1, or 344:1.

Tamiya 89917 Single Gearbox Kit - Clear
Pololu item #: 1678
Price: $7.49
Out of stock.

Tamiya 89917 Single Gearbox Kit - Clear

The single gearbox is perfect if you like the gear ratio options of the 70168 double gearbox but need just one motor or added flexibility in positioning multiple output shafts. Available gear ratios are: 12.7:1, 38:1, 115:1, or 344:1.

Tamiya 70168 Double Gearbox Kit
On sale!
Pololu item #: 114
Price: $9.25 $12.50
Quantity:

Tamiya 70168 Double Gearbox Kit

Tamiya’s double gearbox packs two independent gear trains into a compact and affordable package that is great for small mobile robots. Each side can be assembled to have one of four gear ratios: 12.7:1, 38:1, 115:1, or 344:1.

Tamiya 89918 Double Gearbox Kit - Clear
Pololu item #: 1677
Price: $8.25
Temporarily out of stock. See product page to backorder.

Tamiya 89918 Double Gearbox Kit - Clear

Tamiya’s double gearbox packs two independent gear trains into a compact and affordable package that is great for small mobile robots. Each side can be assembled to have one of four gear ratios: 12.7:1, 38:1, 115:1, or 344:1.

Tamiya 70097 Twin-Motor Gearbox Kit
On sale!
Pololu item #: 61
Price: $8.95 $12.00
Quantity:

Tamiya 70097 Twin-Motor Gearbox Kit

Tamiya’s twin-motor gearbox consists of two independent motors and gearboxes in one compact housing, making it perfect for small robots. You can assemble the gearboxes to have a 58:1 or a 204:1 gear ratio.

Tamiya 89915 Twin-Motor Gearbox Kit - Clear
Pololu item #: 1680
Price: $8.25
Quantity:

Tamiya 89915 Twin-Motor Gearbox Kit - Clear

Tamiya’s twin-motor gearbox consists of two independent motors and gearboxes in one compact housing, making it perfect for small robots. You can assemble the gearboxes to have a 58:1 or a 204:1 gear ratio.

Tamiya 70093 3-Speed Crank-Axle Gearbox Kit
Pololu item #: 67
Price: $6.95
Temporarily out of stock. See product page to backorder.

Tamiya 70093 3-Speed Crank-Axle Gearbox Kit

Tamiya’s 3-speed crank-axle gearbox looks very much like half of the twin-motor gearbox (with an added gear ratio option). This compact gearbox can be built in one of three gear ratios (17:1, 58:1, and 204:1), and is Tamiya’s cheapest, general-purpose gearbox.

Tamiya 89914 3-Speed Crank-Axle Gearbox Kit - Clear
Pololu item #: 1681
Price: $7.95
Quantity:

Tamiya 89914 3-Speed Crank-Axle Gearbox Kit - Clear

Tamiya’s 3-speed crank-axle gearbox looks very much like half of the twin-motor gearbox (with an added gear ratio option). This compact gearbox can be built in one of three gear ratios (17:1, 58:1, and 204:1), and is Tamiya’s cheapest, general-purpose gearbox.

Tamiya 70189 Mini Motor Low-Speed Gearbox (4-Speed) Kit
On sale!
Pololu item #: 1684
Price: $10.95 $15.00
Quantity:

Tamiya 70189 Mini Motor Low-Speed Gearbox (4-Speed) Kit

Tamiya’s 4-speed low-speed mini motor gearbox features a more compact 030-form-factor motor driving a single gear train that can be assembled to have one of 4 gear ratios: 71.4:1, 149.9:1, 314.9:1, or 661.2:1. The gear train includes a self-locking worm gear.

Tamiya 70188 Mini Motor Gearbox (8-Speed) Kit
On sale!
Pololu item #: 1682
Price: $10.95 $15.00
Quantity:

Tamiya 70188 Mini Motor Gearbox (8-Speed) Kit

Tamiya’s 8-speed mini motor gearbox features a more compact 030-form-factor motor driving a single gear train that can be assembled to have one of eight gear ratios: 7.5:1, 9.5:1, 15.7:1, 19.9:1, 32.9:1, 41.8:1, 79.1:1, or 87.8:1.

Tamiya 70190 Mini Motor Multi-Ratio Gearbox (12-Speed) Kit
On sale!
Pololu item #: 1683
Price: $10.95 $15.00
Quantity:

Tamiya 70190 Mini Motor Multi-Ratio Gearbox (12-Speed) Kit

Tamiya’s 12-speed multi-ratio mini motor gearbox features a more compact 030-form-factor motor driving a single gear train that can be assembled to have one of 12 gear ratios: 4.6:1, 5.1:1, 9.7:1, 10.8:1, 20.4:1, 22.6:1, 42.8:1, 47.5:1, 89.9:1, 99.8:1, 188.7:1, or 209.7:1.

3mm Hexagonal Shaft Adapter for LEGO Wheels (Pair)
Pololu item #: 1011
Price: $2.95
Quantity:

3mm Hexagonal Shaft Adapter for LEGO Wheels (Pair)

This adapter allows 3mm hexagonal shafts, the kind found on many Tamiya gearboxes, to be connected to LEGO’s wide variety of high-quality wheels. The adapters are sold in pairs.

Related Products

3mm Hexagonal Shaft Adapter for LEGO Wheels (Pair)
Tamiya 70105 3mm Diameter Shaft Set
Pololu Universal Aluminum Mounting Hub for 3mm Shaft Pair, 2-56 Holes
Injection-Molded Sprocket Set 8T Hex

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