Feature:1. The product possess stable gear transmission, wearresistance, and large transmission torsion2. Come with two phase reduction gear motor with encoder, which is powerful and practical3. This speed encoder gear motor can support rotate and reverse, which achiceves work more accurately4. Made of high quality copper and stainless steel material, sturdy and durable for a long service life5. This brush DC motor possess stable performance and high efficiency, convenient for you to useSpecification:Item Type: Gear MotorMaterial: Copper, stainless steelModel: GA25-370Motor Type: Brush DC motorParameter:VoltageReduction ratioGear box L length(approx.)No-loadLoadBlock loadRotate speedCurrentRotate speedCurrentTorsionCurrentTorsion12V1:50027mm / 1.1in10RPM60MA8RPM300MA440g.cm4A14.9KG.CM12V1:23027mm / 1.1in30RPM60MA22RPM300MA560g.cm1.1A14.7KG.CM12V1:10323mm / 0.9in60RPM60MA51RPM300MA320g.cm1.1A12.75KG.CM12V1:6023mm / 0.9in100RPM60MA78RPM300MA260g.cm1.1A11.2KG.CM12V1:4421mm / 0.8in150RPM60MA118RPM300MA160g.cm1.1A9.2KG.CM12V1:2021mm / 0.8in300RPM60MA235RPM300MA160g.cm1.1A5.6KG.CM12V1:2021mm / 0.8in500RPM70MA477RPM300MA150g.cm1.1A3.5KG.CM12V1:1021mm / 0.8in1200RPM100MA1046RPM300MA45g.cm1.1A3.3KG.CMRed: Motor power + positive (change can control motor forward and reverse)Black: Encode power - negative (positive and negative can not be connected incorrectly 3.3-5V)Yellow: Signal feedback (11 signals from the motor)Green: Signal feedback (11 signals from the motor)Blue: Encoder power + positive (positive and negative can not be connected incorrectly 3.3-5V)White: Motor power - negative (change can control motor forward and reverse)Diameter:Approx. 25mm / 1inApprox. 7mm / 0.3inApprox. 4mm / 0.2inApprox. 14mm / 0.6inApprox. 24.4mm / 1inSize:Approx. 3.5mm / 0.1inApprox. 8mm / 0.3inApprox. 12mm / 0.5inApprox. 2.5mm / 0.1inApprox. 31mm / 1.2inApprox. 40mm / 1.6in(for reference)Approx. 17mm / 0.7in.Package List:1 x Gear MotorNote:Please allow 0.1mm error due to manual measurement. Thanks for your understanding.