140 DC Motor specification:
- Category : copper brushed DC motor
- Body length : 25mm
- Cross section diameter : 21mm
- Shaft diameter : 2mm
- Shaft length : 9mm
- Mounting holes spacing : 10mm
- Mounting holes size : 2.3mm
- Operating voltage : 3V ~ 6V
- Speed : 17000r/min ~ 36000r/min
