Assorted Plastic Gears

Four gears of different sizes, perfect for any investigation or maker project.

• Four gears per set (12, 20, 30, and 40 tooth)
• Larger gears accommodate 4 mm axle, with 3 bushings included to reduce axle size to 2 mm
• All four gears bevelled on one side

Sets include 40, 30 and, 20 tooth gears with 4 mm bore and a 12 tooth gear with a push-fit to a 2 mm motor shaft. There are 3 inserts on each sprue, which allow the 4 mm bore to reduce to a 3 mm bore. All gears are bevelled on one side to allow 90° meshing. The 40 tooth gear has an extra hole to create eccentric movement or for a crank handle (Fits 4 mm dowel).

 : Sets come in blue, green, and red - one color per set, but sets vary. Unable to specify which color you will receive.

Bulk bag of 150 contains 38 sets of four (152 gears, total), and includes all three colors.