Features:This DC motor features large moment of force, lowspeed, and low noise.The motor is made of metal gear, wear-resisting, avoid tooth breaking, so with long serving life.This electronic gear motor is good replacement for old or worn electronic deceleration motor, useful and practical.Suitable for lifts, landing gear, mechanical arms ,electronic toys and many other devices.This motor is adopted of pure copper wire coil, with lowheat and low loss.Specification:Model: GA12N20-M4100Rated power: 2WOptional type: 6V 30RPM, 6V 60RPM, 6V 100RPM, 6V 150RPM, 6V 200RPM, 6V 300RPM, 6V 400RPM, 6V 500RPM, 12V 300RPM, 12V 400RPM, 12V 600RPM3C rated voltage range: < DC 36VTread type: M4Output shaft length: 100mm / 3.9inchLength: Approx. 125mm / 4.9inchWeight: Approx. 19g / 0.7ozVoltageGear RatioNo LoadLoad TorsionStallSpeedCurrentSpeedCurrentTorsionCurrentTorsion6V1:29830RPM40mA23RPM40mA440gf.cm1.1A3.3kgf.cm6V1:29860RPM40mA50RPM40mA560gf.cm1.1A3.6kgf.cm6V1:100100RPM50mA83RPM45mA320gf.cm1.1A2.25kgf.cm6V1:100150RPM50mA130RPM45mA260gf.cm1.1A2.50kgf.cm6V1:50200RPM50mA180RPM45mA160gf.cm1.1A1.60kgf.cm6V1:50300RPM50mA240RPM50mA190gf.cm1.1A2.0kgf.cm6V1:50400RPM50mA350RPM70mA210gf.cm1.1A2.2kgf.cm6V1:50500RPM70mA440RPM100mA220gf.cm1.1A2.4kgf.cm12V1:100300RPM50mA240RPM60mA550gf.cm1.1A3.6kgf.cm12V1:50400RPM50mA310RPM45mA280gf.cm1.1A2.4kgf.cm12V1:50600RPM50mA500RPM50mA310gf.cm1.1A3.0kgf.cmPackage List:1 x Gear MotorNote: 1. Please allow small size error due to manual measurement. Thanks for your understanding.2. Only a gear motor, no other stuff included.