Srf5348-4485-84-1-45Bc Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen Srf5348-4485-84-1-45Bc is part of the SR and SRF Permanent Magnet Motors series and features a 145TC frame size with a welded base style. This motor produces a continuous torque of 54.0 lb-in at a continuous current of 7.8 A and has a rated voltage of 180 V. It has a TEFC enclosure and weighs 64 lbs, delivering 1.5 horsepower at a speed of 1750 RPM.
Internal Product Review
The Srf5348-4485-84-1-45Bc is a Kollmorgen permanent magnet motor built with a TEFC enclosure and welded base. Performance is well matched for industrial motion service with 1.5 HP output and 1750 RPM rated speed. The 54.0 lb-in continuous torque is a strong finishing point for dependable drive performance.
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Product Description:
The Srf5348-4485-84-1-45Bc is a permanent-magnet DC motor produced by Kollmorgen within the SR and SRF Permanent Magnet Motors series. It is intended for machine tools, test stands, and other automation axes that need consistent torque up to the base speed while operating from SCR or four-quadrant drives. By combining a totally enclosed fan-cooled housing with a welded 145-frame foot, the unit supplies mechanical power directly to belts, couplings, or gear reducers without exposing the windings to shop contaminants.
The motor develops a continuous shaft output of 1.5 HP when its armature is supplied with a nominal DC voltage of 180 V and draws a steady current of 7.8 A. Under these conditions, it delivers 54.0 lb-in of torque at the rated base speed of 1750 rpm, allowing constant-torque loads such as extruders or conveyors to operate without field weakening. The totally enclosed fan-cooled housing aids thermal balance, while the welded foot keeps vibration paths short. The electrical circuit has an inductance of 13.5 mH that limits ripple current from phase-controlled supplies, while its resistance of 1.2 Ω establishes copper loss and steady-state temperature rise.
For intermittent demands, the armature can accept up to 62.0 A, providing a short-term torque boost before thermal limits are reached. The magnetic design provides a torque constant of 7.9 lb-in/A, so current commands translate linearly into load force in positioning loops. The mechanical interface uses a 145TC frame, providing a C-face flange and pilot for direct pump or gearbox mounting. The motor weighs 64 lb, and its 16-inch overall length fits standard NEMA motor bases without spacer plates. Because the base is welded and not removable, its alignment remains fixed during transport and installation.
