Complete set of plastic gears: the most complete 78-piece package for the DIY car robot project, 68 types of accessory components that always meet different mate requirements. Such as toy cars / robots / engines.
The main shaft gear, single/double gear, crown gear, pulley, rack, bevel gear, copper gear, bushing, axle, tire, rubber band,etc. The most distinctive gear is: 36mm Yellow 2mm Hole Belt Pulley, Rack, Four-wheel Drive Teeth, 28 Punched Holes 2mm Fan Teeth, 30-100mm Axles, 30mm Diameter Five Hub Wheels.
Axle: the length is 30mm, 50mm, 70mm, 100mm and the diameter is 2mm (2pcs of each size). Five hub wheels: the outer diameter is 30mm and bore size is 2mm (4pcs).
The aperture of Most gears are 2mm(tight or loose), in addition to a 81.5A spindle hole is 1.5mm, two crown is 2.5mm, a crown gear C303A is 3mm, a 15 teeth 2.3mm hole and 3.17mm hole.
Made of high quality ABS plastic material, durable and reusable. All our products have been tested and approved for performance and quality.
Perfect for scientific projects, at the same time, you can explore the child's construction to take advantage of the advantages.