Cyber Week Sale – click for coupon codes!

Tamiya 70168 Double Gearbox Kit

Pololu item #: 114
Brand: Tamiya
RoHS 3 compliant

Price break Unit price (US$)
1 13.50


backorders allowed

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.

Alternatives available with variations in these parameter(s): color Select variant…

 Description Specs (7) Pictures (9) Resources (3) FAQs (7) On the blog (0) 

Tamiya 70168 double gearbox kit – clear.

Overview

The Tamiya double gearbox is a compact unit with two independent motors and gear trains. The kit includes two motors and all gears and parts to build any of the four possible gear ratio configurations (12.7:1, 38:1, 115:1, and 344:1). Although it is not typical, it is possible to assemble each side with different gear ratios. There are two possible output axle locations (for any given gear ratio, only one output location is possible).

Color options

Complementary products

The output shafts included in this kit are 3 mm hexagonal axles that are 10 cm (about four inches) from tip to tip. The axles work with any of the Tamiya wheels we carry, giving you many options for your robot speed. The low-voltage motors run on 3-6 volts and draw up to a few amps, making them perfect candidates for the DRV8833 motor driver carrier. Motor overheating can be caused by excessive stalling, even at very low voltages. We recommend that you use stall-detection sensors, or just watch your robot, to make sure that it doesn’t stall for more than a few seconds at a time. For motor specs, see the Mabuchi motor FA-130 (#18100) data sheet (58k pdf).

Note that you can replace the motor in this kit with a lower-current, higher-voltage motor if you want to use this gearbox with controllers such as the TB6612FNG dual motor driver carrier or Baby Orangutan B-328 robot controller.

Comparison to the Tamiya twin-motor gearbox

The double gearbox is very similar to the Tamiya 70097 twin-motor gearbox, as shown in the picture to the right. The gear ratio options of the two products complement each other well, but the mounting holes and overall dimensions vary slightly. The double gearbox is shorter and wider than the twin-motor gearbox, and the gears are a bit smaller and wider. This should make the double gearbox a bit more robust, though we have not heard any reports of the twin-motor gearbox gears breaking.

To compare all Tamiya gear box kits, see the Tamiya Gearbox Gear Ratio Comparison.

Note: The double gearbox is a kit; assembly is required. To use the kit in robotics projects, you need to connect the motors to your own robot controller.

People often buy this product together with:

Tamiya 70111 Sports Tire Set (2 tires) Tamiya 70111 Sports Tire Set (2 tires)
Tamiya 70145 Narrow Tire Set (2 tires) Tamiya 70145 Narrow Tire Set (2 tires)
Tamiya 70144 Ball Caster Kit (2 casters) Tamiya 70144 Ball Caster Kit (2 casters)

Related Products

Pololu Universal Aluminum Mounting Hub for 3mm Shaft, #2-56 Holes (2-Pack)
DRV8835 Dual Motor Driver Carrier
DRV8833 Dual Motor Driver Carrier
Tamiya 70097 Twin-Motor Gearbox Kit
Tamiya 70167 Single Gearbox (4-Speed) Kit
Tamiya 70093 3-Speed Crank-Axle Gearbox Kit
Tamiya 70188 Mini Motor Gearbox (8-Speed) Kit
Tamiya 70190 Mini Motor Multi-Ratio Gearbox (12-Speed) Kit
Tamiya 70189 Mini Motor Low-Speed Gearbox (4-Speed) Kit
Brushed DC Motor: 130-Size, 6V, 11.5kRPM, 800mA Stall
Tamiya 70098 Universal Plate Set
Tamiya 70157 Universal Plate Set (2pcs.)
Tamiya 70172 Universal Plate L (210x160mm)
Tamiya 70105 3mm Diameter Shaft Set
Tamiya 70102 2-Channel Remote Control Box Kit

Related Categories

Tamiya Motors and Gearboxes
Tamiya Gearboxes with 3mm Hexagonal Shafts
Tamiya Wheels
Log In
Pololu Robotics & Electronics
Shopping cart
(702) 262-6648
Same-day shipping, worldwide
Menu
Shop Blog Forum Support
My account Comments or questions? About Pololu Contact Ordering information Distributors