Plastic Gears Set Pulley Belt Worm Kits Crown Gear Set Robot Motor Toy DIY Parts for Model Amateur(64 new gear packs)
- Worm and worm gear Coincide distance from the center distance is 8 mm.
- 1pairs x 0.5 Modulus Small Reduction Ratio of 1:10 Motor Output Copper Worm Wheel Gear For DIY.