Product Description:

The SR3624-8291-84-7-56HC -CU is a permanent-magnet DC motor produced by Kollmorgen within the SR and SRF Permanent Magnet Motors series. As a brushed armature unit, it supplies steady rotational power to conveyor sections, packaging axes, or indexing tables where simple speed control from a DC drive is preferred. The motor converts electrical power into mechanical torque that can be regulated by current feedback loops in typical industrial automation systems. Its permanent-magnet design eliminates the need for a separately energized field winding, while the brushed construction provides direct armature current control. This arrangement is suitable for applications that require predictable torque response without a complex electronic commutation system.

Under continuous duty, the armature can draw up to 2.7 A while delivering a shaft torque of 9.0 lb-in. These values correspond to operation at the rated supply of 90 V and apply at thermal equilibrium inside the totally enclosed, nonventilated TENV housing. Armature copper losses are limited by a circuit resistance of 2.5 Ω, allowing the controller to maintain rated torque without excessive current variation. When the armature is supplied at nominal voltage, the rotor reaches a base speed of 1750 rpm, matching common line-shaft requirements in material-handling machinery. The sealed housing prevents direct cooling air from circulating through the motor interior, so heat must pass through the frame before reaching the surrounding air. Continuous operation should therefore preserve adequate clearance around the enclosure for passive heat dissipation.

During acceleration, the winding can accept up to 54.0 A of peak current without exceeding its temperature class, and the magnetic circuit’s electrical response is influenced by an inductance of 9.6 mH. At rated operating conditions, the mechanical output is 1/4 hp, providing a compact power source for light-duty actuators. A torque constant of 3.9 lb-in/A links armature current directly to shaft torque, allowing drive electronics to estimate load reaction through proportional current control. The available peak current supports brief increases in torque when the motor starts, stops, or reverses. Winding inductance moderates rapid changes in armature current and affects how quickly commanded torque develops. Current limiting within the connected drive helps keep acceleration demands within the motor’s short-duration capability.