E-S Motor 12V GM37 Metal Gearmotor, 37 RPM

These 37D gearmotors have 12 V motors with a stall current of 2.4 A and a typical free-run current of 0.15 A. They are available in a range of gear ratios from 6.25:1 to 810:1, and all versions are available with integrated encoders on the motor shafts.