Features 1、The product possess stable gear transmission, wear‑resistance, and large transmission torsion 2、Come with two ‑ phase reduction gear motor with encoder, which is powerful and practical 3、This speed encoder gear motor can support rotate and reverse, which achiceves work more accurately 4、Made of high quality copper and stainless steel material, sturdy and durable for a long service life 5、This brush DC motor possess stable performance and high efficiency, convenient for you to use Specification Item Type: Gear Motor Material: Copper, stainless steel Model: GA25-370 Motor Type: Brush DC motor Parameter: Voltage Reduction ratio Gear box L length(approx.) No-load Load Block load Rotate speed Current Rotate speed Current Torsion Current Torsion 12V 1:500 27mm / 1.1in 10RPM ≤60MA 8RPM ≤300MA 440g.cm ≤4A 14.9KG.CM 12V 1:230 27mm / 1.1in 30RPM ≤60MA 22RPM ≤300MA 560g.cm ≤1.1A 14.7KG.CM 12V 1:103 23mm / 0.9in 60RPM ≤60MA 51RPM ≤300MA 320g.cm ≤1.1A 12.75KG.CM 12V 1:60 23mm / 0.9in 100RPM ≤60MA 78RPM ≤300MA 260g.cm ≤1.1A 11.2KG.CM 12V 1:44 21mm / 0.8in 150RPM ≤60MA 118RPM ≤300MA 160g.cm ≤1.1A 9.2KG.CM 12V 1:20 21mm / 0.8in 300RPM ≤60MA 235RPM ≤300MA 160g.cm ≤1.1A 5.6KG.CM 12V 1:20 21mm / 0.8in 500RPM ≤70MA 477RPM ≤300MA 150g.cm ≤1.1A 3.5KG.CM 12V 1:10 21mm / 0.8in 1200RPM ≤100MA 1046RPM ≤300MA 45g.cm ≤1.1A 3.3KG.CM Red: 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 / 1in Approx. 7mm / 0.3in Approx. 4mm / 0.2in Approx. 14mm / 0.6in Approx. 24.4mm / 1in Size: Approx. 3.5mm / 0.1in Approx. 8mm / 0.3in Approx. 12mm / 0.5in Approx. 2.5mm / 0.1in Approx. 31mm / 1.2in Approx. 40mm / 1.6in(for reference) Approx. 17mm / 0.7in Package List 1 x Gear Motor