【It is a useful part for improving machine performance and setting】 The
pinion gear that conveys the power of the motor is the part which becomes the essential part of the power transmission. The point where the gear keeps high performance is to replace it early as the gear wears down or becomes loose and easy to come off. If you use a high power motor, you can use the brass pinion gear to transmit power without loss.
Set 4 brass 8T pinion gears and plastic 8T pinion gears 4