Features: Metal gear and large torsion for better working performance. Low noise.The motor will generate less noise in working. The carbon brush motor has good commutation performance and long service life. Suitable for bank ATM, vending machine, automatic mahjong machine, automatic window opener, automation equipment. Professional and practical design with beautiful appearance, easy to carry and use. Specification: Voltage:DC 12V Rated Wattage:7W Reduction Ratio(Optional) 6.3 10 18.8 30 56 90 131 168 270 506 810 No Load Current(mA) 45 45 45 45 45 45 45 45 45 45 45 No Load Speed(RPM) 1016 640 340 213 114 71 49 38 24 13 8 Rated Torsion(kg.cm) 0.3 0.5 0.9 1.5 2.8 4.5 6.5 8.4 13.5 25 40 Rated Speed(RPM) 700 500 200 150 100 50 30 25 15 10 5 Rated Current(A) 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 Stopping Current(A) 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 Do not use in block rotation Length of L 19 22 24 26.5 29 Size:As shown in the picture. Package List: 1*Motor