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KidWind Gear Set with Spool
KidWind Gear Set with Spool

Our Price: $13.50

Availability: Usually Ships in 3-5 business days.
Product Code: KIDWIND-H0046

Description Videos Datasheet

KidWind Gear Set with Spool

Experiment with gear ratios on your wind turbine or other small projects. Adding gears to your turbine can greatly increase the generator RPM, giving you higher power output. The small 8-tooth gear will fit on 2 mm driveshafts that are found on lots of DC generators. The gears have a keying feature that allows them to be changed quickly and easily using the included hex locks. The hex lock secures to our 9/64 inch hex-driveshaft.

Gear sizes: 64 teeth, 32 teeth, 16 teeth, 8 teeth.

Pinion diameter 0.5 in.
16 tooth gear diameter 1 in.
32 tooth gear 2 in.
64 tooth diameter 4 in.

You Can:

  • Increase generator RPM through the mechanical advantage of gear ratio
  • Increase the power output of student wind turbines


  • Exploring energy transformations
  • Understanding ratios
  • Learning about mechanical advantage
  • Understanding simple machines
  • Exploring the relationship between energy and forces
  • Understanding forces and motion
  • Developing and using physical models
  • Optimizing designs
Frequently Asked Questions
    How many teeth do the gears have?

    The gears have 64 teeth, 32 teeth, 16 teeth, and 8 teeth.

  • Can I use these gears with the KidWind drivetrain set?

    Yes. They are designed to lock on to the hex locks which connect to the driveshaft.

  • Can I use these gears in a KidWind Challenge competition?

    Yes! These gears are legal in the KidWind Challenge.

  • What are the gears made of?

    These gears are made of 100% recycled plastic and manufactured at a wind-powered manufacturing plant in New York!

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