84 Type Plastic Gears Set With Belt Pulleys For DC Motor DIY Robots And Model Toys, Includes Massive 40 Gear Wheels, 40 Rubber Bands, And 4 Rubber Drive Belts For Versatile Gear Train Projects

Comprehensive 84-Piece Plastic Gear Set with Pulleys
✔️ Includes 84 parts, 40 belt pulleys, 40 bands, 4 drive belts

This 84-piece plastic gear set is designed for DIY robotics, model making, and classroom experiments. It provides a full assortment of gears, belt pulleys, and drive belts to build compact, reliable gear trains for DC motors.

✅ 84-piece variety including worm gears, crown gears, and more for diverse gear trains
✅ Most gears feature 2 mm apertures; spindle holes 2.3 mm and 3.17 mm
✅ 40 belt wheels, 40 rubber bands, and 4 rubber drive belts for ready-to-use setups
✅ High-quality plastic material for wear resistance and long service life
✅ Wide use in labs, education, DIY models, RC repairs and quick prototyping

💡 What is a plastic gear set used for in DIY robotics and model building? Handy kit for quick prototyping and education.

- gear train construction for educational kits and hobby projects - supports PWM and DC motor experiments in classrooms - includes pulleys and belts for compact, low-cost drive systems - ideal for hobbyists building RC models and small automation demos