MFA 950D301LN Gearbox 30:1 Low Noise Single RatioDesigned for heavier duty industrial and modelling applications. These units boast a high quality five pole low rpm motor providing approx 45% more motor torque than the standard RE385 motor, with a considerable reduction in noise levels. The metal gearbox incorporates sleeve bearings, enabling the high torque transfer to be transmitted through the gearbox.