The mini-motor gearbox kit from Tamiya makes it easy to get a small robot or plastic model moving. The kit includes one brushed DC motor and all the gears and parts to build any of the eight possible gear ratio configurations: 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. The eight gear ratio options give you the flexibility to choose the best speed and torque for your project. There are two possible output axle locations (only one output location is possible for any given ratio).
|Parts included with the Tamiya 70188 mini motor gearbox (8-speed) kit with quarter for size reference.|
The kit includes step-by-step illustrated instructions in both Japanese and English. A scanned copy of the instructions is available on the Pictures tab. The kit can be built with just a screwdriver, but the instructions recommend having side cutters, tweezers, and a modeling knife on hand. The gearbox kit’s motor has a 030 form factor that is smaller than the Tamiya gearboxes that use the Mabuchi FA-130 motor.
|Box back for Tamiya mini motor gearbox (8-speed) kit shows the possible gear ratios in yellow.|
- 030-form-factor motor
- Speed @ 3 V: 8400 RPM
- Free-run current @ 3 V: 60 mA
- Stall current @ 3 V: 600 mA
- Stall torque @ 3 V: see picture to the right for torque table
- 8 different gear ratios, which can be adjusted by changing the pinion gear and final gear position
- 3 mm hexagonal output shaft compatible with Pololu's adapter for LEGO wheels and many of Tamiya’s wheels.
- Mounting holes designed to work with the Tamiya 70098 universal plate set and other Tamiya construction series products.
- Transparent gear housing shows the internal mechanisms
- Compact size of approximately 20 x 18 x 50 mm (0.8" x 0.7" x 2")
Note: The Tamiya 70188 mini motor gearbox (8-speed) is a kit; assembly is required.
Documentation and Resources:
Exact shipping can be calculated on the view cart page (no login required).
We deliver Australia-wide with these options:
- $3 for Small Items (3-7 days, not tracked, only available on selected small items)
- $6.95 for Standard Post (2-4 days, tracked)
- $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)
International Orders - the following rates are for New Zealand and will vary for other countries:
- $11.49 for Pack and Track (3+ days, tracked)
- $16.50 for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount might increment based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
Unit 18, 132 Garden Grove Parade
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