This system includes :
Pinion Gear-1pcs
3*3 Screw Shaft-1pcs
role location:
Pinion
Product major function & usage:Connect with all the engine and carry the motor to run
1.Made by harden metal #45, more powerful and durable to accomplish more smooth performance.
2.Middle opening:2mm,Tooth distance:0.5mm,Tooth:14T.Suitable for many motors with below specifiaction-