The main shaft gear is mainly used in the assembly of model toy cars or on small motors such as hollow cup.130.140.260.370 and other motors.
This link uploads all plastic gears with round holes
Examples of model descriptions are as follows:
122A gear: The number of teeth is 12, 2A means it is tightly matched with the shaft with a diameter of 2.0MM. The diameter of the hole is about 1.95 mm.
Calculation formula of gear outer diameter: Outer diameter = (number of teeth + 2)*0.5, where 0.5 represents the module, and the module of this gear is 0.5.
Package including: According to your choice.
Shipping:
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Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that's why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed.
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