Tamiya 69909 Clear 3-Speed Crank Axle Gearbox Workshop Edition  [69909]

Tamiya 69909 - 3-Speed Crank Axle Gearbox (Clear)
Price:
£7.02
Brand:
Tamiya
Model:
69909
GTIN:
4950344699094
Condition:
Brand New
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Educational Clear 3-Speed Crank Axle Gearbox Tamiya 69909

The Tamiya 69909 3-Speed Crank Axle Gearbox is aimed at hobbyists and workshop makers who want hands-on insight into gear trains. Its three selectable ratios let you compare how gearing affects rpm and torque in real assemblies.

See-Through Case and Mounting Options

A clear ABS resin casing exposes the internal gear set so you can observe meshing and shaft alignment while the unit runs. Left and right 3mm hex outputs expand mounting and drive options for model and robotic setups.

Motor Pairing and Creative Uses

Equipped with a Type 130 motor, the gearbox offers a compact power solution for prototypes, classroom projects, and small models. Fit the crank arms to convert rotation into linear motion for pumps, linkages, or simple walking mechanisms.

What is the best way to test gear performance?

Run the gearbox under controlled loads at each gear position and monitor output speed and torque; this helps you map the behaviour for your application.

How do I mount the crank arms securely?

Use the supplied fasteners and ensure the crank arm is aligned with the hex output, tightening to avoid play while allowing smooth rotation.

Will this gearbox handle robotics loads?

For light to moderate robotics tasks it is suitable; assess your load and duty cycle and choose the gear setting that provides the required torque without overloading the Type 130 motor.

Any tips for keeping the internals visible?

Keep the clear case free of dust and grease, and avoid solvents that could haze the ABS; clean gently with a soft cloth for best visibility.

Can I link multiple gearboxes together?

Yes, with proper mounting and alignment you can couple gearboxes for compound gearing or distributed drive, but plan shaft alignment carefully to avoid binding.

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