This document provides specifications for a PM 6013 12V DC motor with a PS 1900 90:1 ratio gearbox. Key specifications include a no-load speed of 2750 rpm, rated speed of 30.6 rpm, rated torque of 56.1 lb-in, and maximum efficiency of 61.1% for the motor. The gearbox has an efficiency of 48.6% and the overall system efficiency is 29.7%. Charts show the motor's torque and efficiency curves across a range of speeds.