Plastic Gear Kit with Motors & Wheels | 142PCS DIY Model Building Set for RC Cars, Robots | Metal/Plastic Gears, Pulleys, Belts, Bushings

• 【Professional-Grade Components】This plastic gear kit includes 9 types of industrial-spec parts (142PCS) with 2mm motor shafts, meeting ASTM F963-17 toy safety standards for worry-free DIY projects.
• 【Precision Motion Systems】Features 35+ gear ratios including 82A-562A gears & C152A-C40102B crown gears, compatible with Technic/Mindstorms (non-brand replacement parts).
• Engineering Materials】CNC-machined nylon gears (Rockwell M94) & zinc alloy pulleys withstand 15,000+ rotations, 40% higher capacity than standard plastic components.
• 【Multi-Application Compatibility】Universal 2mm bushings and axles (30-100mm) work with 130/260/300 motors, ideal for school STEM kits, robotics competitions, and RC vehicle upgrades.
• 【Complete Starter Bundle】Includes rare accessories: 3 propellers (30-80mm), 6 rubber belts, 10 bushings + battery holder - 83% more components than basic gear kits.

Product description Engineered for precision model building, our 142-piece gear kit delivers professional-grade mechanical solutions for hobbyists and educators. The set combines industrial-grade nylon gears (82A-562A) with corrosion-resistant zinc alloy pulleys, designed to handle loads up to 2.3N·m - perfect for competitive robotics or advanced RC car modifications. With 35+ gear ratio combinations and cross-compatible 2mm shafts, this kit supports complex mechanical systems development. The inclusion of rare components like C40102B crown gears and W6 series worms enables authentic industrial simulations. Our 2023 laboratory tests show 92% reduced gear slippage compared to entry-level sets. Ideal for： STEM classroom gear mechanism demonstrations Repairing vintage model trains/cars Building competition-grade battle robots Creating functional kinetic sculptures Developing engineering prototypes Specifications: Main Material: Metal, plastic Motor Shaft Diameter: 2mm Weight: 142g(approx.) Package Includes: 9 x Single-Layer Gears (82A, 102A, 112A, 122A, 132A, 142A, 182A, yellow 102A, blue 102A) 7 x Crown Gears (C152A, C282A, C322A, C20082A, C24102A, C30102B, C40102B) 11 x Single-Layer Gears (202A, 242A, 282A, 302A, 322A, 362A, 402A, 422A, 802A, soft orange 482A, blue 562A) 14 x Double-Layer Gears (16102B, 18102A, 20082B, 20102B, 22082A, 22102B, 24122B, 28102B, 30162A, 30122B, 32082B, 40102B, 46082A, 50102A) 6 x Pulleys (102B, 62A, 132A, 182A, 16.82A, red 242AB) 2 x Worms (W6*62A, W6*82A) 10 x 2mm Bushings 3 x Motors (130, 260, 300) 1 x White Holder (25mm) 1 x Metal Holder (130) 1 x Battery Holder for AA Batteries 1 x Switch 4 x Green Wheels (35mm) 4 x Red Rubber Wheels 2 x Axles (2*100mm) 2 x Axles (2*50mm) 2 x Axles (2*30mm) 3 x Propellers (30mm blue, 40mm yellow, 80mm red) 6 x Rubber Bands Directions Instructions for assembly and usage are required.