This document provides specifications for a PC-500 clutch, including a shaft size range of 0.500-1.250 inches, a static torque of 40 lb-ft, and a maximum speed of 5,400 rpm. It can operate on standard voltages of 6, 24, or 90 VDC. Dimensions and part numbers for components like the armature, magnet, bushings, and terminals are given. Instructions for ordering and a diagram of the assembly are also included.