Gears, sets offer 40-, 30- and 20-tooth gears with 3/16in bore to accommodate the most popular dowel size, and a 12-tooth gear with a push-fit to 2 mm motor shafts. Three inserts are provided on each sprue, allowing the 3/16in bore to reduce to 3 mm
Small Motor with Leads and Mount, Adapter Pin, AA Single Battery Holder, 1.5-3V Mount, Motor Shaft Diameter: 2.3mm, turns at the perfect speed for most projects. Use these for motor powered, cars, boats, scribble bots