New Plastic Worm Crown Gear Motor Wheel Gearbox Robot Spindle Pully Toy Parts
Mainly used in hollow cup.130.140.180.260.280.370 and other 2MM motors, 2.3MM round shaft motors, 3mm D-axis geared motors, 4mm D-axis geared motors, etc. Including gears, racks, pulleys, belts and other transmission parts.