This document provides specifications for the Nippon Pulse PFC55H stepper motor and its various gearhead models. It includes details on dimensions, torque curves, winding types, excitation modes, voltage and current ratings, resistance, inductance, holding torque, operating temperature range, and weight. Gearhead ratios and maximum torques are listed for different gearhead models. Torque curves are provided for various driver configurations and supply voltages to show motor performance.