EUDAx 82 pcs Plastic Gear Package Kit DIY Assortment Accessories Set for Toy Motor Car Robot Various Axle Belt Bushings

Axle length of 30mm 50mm 70mm 100mm shaft diameter is 2mm 2pcs / kind for a total of 8 Pcs Five wheel wheels: outer diameter 30mm inner hole 2mmfor a total of 4 Pcs Manufactured by EUDAX. The characteristics of gear: 36MM yellow 2mm hole belt wheel rack four-wheel drive 28 tooth 2mm hole Fan teeth and 30-100mm gear axle five wheel wheel diameter 30mm!Multi-uses you can use it to fix the toysGreat for diy science and small production product design and mechanical model. Most gear is 2mm aperture (tight or loose) in addition to one 81.5A spindle hole is 1.5mm there are 2 crown is 2.5mm there are 1 crown gear C303A is 3mm one 15 teeth 2.3mm hole and 3.17mm hole. The Gear Package included: spindle single/double crown gear pulley rack bevel gear copper gear bushings axles tires rubber bands and so on more accessories that you need for diy toy cars/robots/motors.