Product Description:

The SR3632-8292-84-7-56HC-CU is a permanent magnet DC motor built by Pacific Scientific in its Permanent Magnet DC Motors series. The motor serves as a rotary power element for conveyors, positioning tables, and other low-voltage drive axes where precise speed regulation is handled by a DC drive. Industrial automation systems use this type of motor to convert electrical energy from a rectified supply into mechanical shaft work with constant torque across a broad speed range.

Under nominal conditions, the motor is supplied with 90 VDC, and at that voltage it reaches a shaft speed of 1750 RPM while producing 1/3 HP of mechanical power. Steady operation at this point draws 3.5 A and yields 12.0 lb-in of continuous torque, making the unit suitable for small material-handling loads. The permanent-magnet armature provides a linear torque-speed characteristic that supports stable regulation with simple voltage control.

Transient requirements are covered by a peak current of 71.0 A, which the drive may supply for short acceleration periods without exceeding commutator limits. Torque rises at a rate of 3.9 lb-in/A as indicated by the torque constant, so acceleration torque is available immediately when current increases. Electrical dynamics are influenced by an armature resistance of 1.8 Ω and an inductance of 6.6 mH, which affect current ripple and the response of the current loop in a DC drive. The totally enclosed non-ventilated housing protects the windings from airborne debris, and heat is removed through the frame rather than by forced airflow.