Product Description:

The SRF3632-5227-84-5-56BC-CU permanent magnet DC motor is produced by Pacific Scientific within its Permanent Magnet DC Motors series. Its totally enclosed fan-cooled (TEFC) housing shields the armature and bearings from airborne contaminants and oil spray, allowing reliable placement adjacent to production machinery. This fractional-horsepower unit converts direct-current input into constant-speed rotation for material-handling conveyors, small machine tools, and indexing tables in industrial automation environments. The enclosed construction also helps protect internal parts in work areas where dust, mist, or light splash would be a concern for an open-frame motor. Because cooling air moves over the outside of the enclosure rather than through the interior, the motor is better suited to dirty surroundings than a vented design.

Its continuous armature current rating is 5.1 A, allowing the windings to deliver steady electromagnetic force without overheating during sustained duty. At that current, the motor produces 18.0 lb-in of shaft torque, which is the turning force available for coupling to belts or gear reducers. A nominal supply of 90 VDC supports normal operation, and under this voltage the shaft runs at a rated 1750 RPM, a common speed that works well with standard gear ratios and peripheral equipment. Power output is 1/2 HP, which suits compact drive tasks that need continuous mechanical output without the bulk of a larger motor. That makes it practical for conveyors and rotary indexing mechanisms that need stable running speed, straightforward gearing, and repeatable day-to-day operation.

Short-term load spikes are supported by a peak current capacity of 54.0 A, which momentarily increases available torque during starts or acceleration. The armature inductance of 5.8 mH shapes the current rise time, affecting how quickly the drive electronics can modulate torque response. Copper resistance of 1.3 Ω governs I²R losses, while a torque constant of 4.0 lb-in/A links input current to mechanical output for predictable control behavior. A NEMA 56C face mount, 5.875-inch bolt circle, 4.500-inch pilot, and a 0.6250-inch shaft support standard mechanical integration. The 10.10-inch body length and 22 lb mass help the motor fit compact equipment frames. The mounting pattern and shaft arrangement support direct coupling to common speed reducers, chain drives, and belt transmissions used on light industrial equipment.