Note that this is a loose part, which needs to be polished and assembled by yourself. After driving for 1 / 87 or 1 / 72, the driving force can be changed statically.

The maximum outer diameter is 7.2mm,

Length: 15mm (excluding deceleration motor).

Shaft length: 25mm

Speed: 242 / 1200 rpm (please indicate the required speed when purchasing, 242 is suitable for trucks, 1200 rpm is suitable for some faster models, and the default is 242 rpm.)

Use 0.3 modulus 12t gear and 6mm reducer. Need buyer to assemble and polish.


Rotation speed:

6400 rpm: suitable for miniature ship model propeller, electric fan?

1200 rpm: suitable for relatively fast cars, buses, fire trucks, etc
.
242 rpm: suitable for heavy-duty trucks and semi-trailer tractors.

47 rpm: suitable for track models or occasions with high torque requirements.