SR3624-8291-7-56HC Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen SR3624-8291-7-56HC is a permanent magnet DC motor from the SR and SRF Permanent Magnet Motors series with a rated output of 1/4 HP and rated speed of 1750 RPM. It features a continuous torque of 9.0 lb-in and a continuous current of 2.7 Amps. The motor comes with sealed ball bearings and a TENV enclosure.
Internal Product Review
The SR3624-8291-7-56HC is a permanent magnet DC motor rated for 90 VDC. A 1750 RPM rated speed and 9.0 lb-in continuous torque give the motor a well-balanced performance profile for steady industrial duty. Field-replaceable brushes support practical maintenance, while 54.0 A peak current underscores strong short-term drive capability.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The SR3624-8291-7-56HC is a permanent-magnet DC motor manufactured by Kollmorgen as part of the SR and SRF Permanent Magnet Motors series. Designed for compact power transmission in industrial automation, the unit converts direct-current electrical power into rotational motion. It can drive small conveyors, gearboxes, or indexing mechanisms that require consistent speed and repeatable torque. Its permanent-magnet design provides field excitation without a separate field winding, which simplifies the required electrical connections. The enclosed housing also makes the motor suitable for industrial equipment where dust protection and compact installation are important.
The motor operates from a rated armature supply of 90 VDC and delivers a base shaft speed of 1750 rpm. These coordinated values support connection to fractional-horsepower DC drive systems and compatible mechanical equipment. Under continuous duty, it draws 2.7 A and produces 9.0 lb-in of steady torque. A torque constant of 3.9 lb-in/A relates armature current to output torque, supporting drives that regulate force through current feedback. Sealed ball bearings support the shaft, while the totally enclosed, nonventilated enclosure protects the windings from dust. Heat is dissipated through the motor frame because the enclosure does not use ventilating airflow.
An armature resistance of 2.5 Ω contributes to current limitation and affects the slope of the motor’s speed-torque curve. An inductance of 9.6 mH reduces commutation ripple and smooths current transitions during operation. During acceleration or brief overloads, the drive may supply up to 54.0 A of peak current, enabling short bursts of torque above the continuous rating. The rotor has an inertia of 4.0 lb-in², balancing responsive acceleration with smooth rotation under changing loads. The motor’s 1/4 HP rated output is suitable for fractional-horsepower gear reducers used on light material-handling equipment. Field-replaceable brushes provide access for routine maintenance without requiring removal of the motor housing.
