Product Description:

The SR3616-8290-7-56BC-CU is a permanent-magnet DC motor produced by Pacific Scientific within the Permanent Magnet DC Motors series. Designed for industrial automation, this motor converts a fixed direct-current supply into regulated mechanical rotation so drives, small conveyors, or metering pumps can maintain set speeds under changing load. Its permanent-magnet design supports straightforward speed regulation with a compatible DC controller in compact equipment that needs steady rotary output during continuous-duty operation and frequent load changes.

This model operates at 90 VDC, and at that supply the armature draws a continuous current of 1.5 A. The electrical input produces a continuous shaft torque of 4.5 lb-in while the rotor turns at a rated speed of 1750 rpm. Each ampere contributes predictable output because the torque constant is 4.0 lb-in/A. With 1/8 horsepower available, the unit fits NEMA size 56C machinery and bolts directly to gearboxes or pumps through a NEMA C face. The overall motor length is 8.13 inches, so the frame can clear adjacent components inside compact panels and shallow machine spaces.

Transient demands can be met because the winding tolerates a peak current of 34.0 A for short intervals. Thermal rise during such surges is influenced by an armature resistance of 5.3 Ω and a winding inductance of 19.4 mH, which limits current rise and helps smooth commutation. The totally enclosed non-ventilated housing, rated as TENV, helps keep airborne particles out while relying on the 14 lb mass for heat dissipation. This enclosed frame also suits areas where dust could settle on open motor parts. A removable base allows switching between foot mounting and the pre-tapped NEMA C face, increasing layout options. Because the stator and mounting face are keyed to the 56C standard, alignment with couplings remains consistent when the motor is remounted.