This is our new low cost, but extremely DC Gear Motor.Specification:No-load Speed: 22RPM at 24 Volts;kg.cm: 7Power: 7.2W;No-load Current: 0.1A;Load Current: 0.3A;D Shaft Size: 14.5mm x 5.9mm/0.57 x 0.23 inches (L*D);Gearbox Size: 30mm x 36.8mm/ 1.18 x 1.46 inches (L*D);Motor Size: 33mm x 35.3mm/1.30 x 1.39 inches (L*D);Mounting Hole Size: M3 (not included).