Product Description:

The SR3642-4822-2-7-56HC-CU is a permanent-magnet DC motor produced by Pacific Scientific within the Permanent Magnet DC Motors series. It converts direct-current input into steady mechanical rotation for conveyors, web handling equipment, and metering drives that depend on stable speed. This design suits continuous industrial duties where predictable output helps maintain process consistency and repeatable machine timing. Its permanent-magnet construction supports responsive speed changes when the load varies, helping operators maintain smoother throughput in compact drive systems.

The motor is designed for 90 VDC, and at that voltage it draws a continuous armature current of 4.7 A. Under nominal conditions, the shaft reaches a base speed of 1750 RPM and delivers 18.0 lb-in of steady torque. Armature resistance is 0.9 ohms, which helps limit voltage drop and supports manageable heating during constant-duty operation.

For short transients, peak current can rise to 74.0 A, giving the motor extra acceleration capability during startup or momentary load changes. A torque constant of 4.2 lb-in/A provides a direct relationship between current and output torque, which simplifies current-loop tuning. Armature inductance measures 3.8 mH to smooth ripple, while rated output reaches 0.5 HP. The 56C NEMA frame fits common mounting hardware, and the 0.6250-inch shaft accepts standard couplings or pulleys without custom rework.

Wake Industrial stocks this motor and can arrange same-day shipping for urgent orders. Quotations remain valid for 30 days, which helps simplify purchasing timelines. The chat tool available on the website can be used for general questions about type codes or fault codes.