The Series M4870U DC micromotor has an external motor-diameter of 48 mm and a length of 70 mm. The DC micromotor can achieve a stall torque of 42.7 mNm and speeds of up to 11,000 rpm. It has an iron-core construction and possesses a graphite commutation system that ensures long life even under overload conditions. The 4.0 mm diameter motor shaft ensures high rotational stability. The motor can be combined with a gearhead, encoder, and linear actuator for a complete miniature DC drive system. A metal planetary gearhead is available in 42 mm diameter with various reduction ratios, allowing an output torque up to 2.9 Nm.