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Call:1-888-551-3082 International: 1-919-443-0207
Call:1-888-551-3082 International: 1-919-443-0207


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The Kollmorgen SR3658-2255-7-56B is a DC motor from the SR series, prized for its efficiency, compact design, and its light weight thanks to permanent magnets. Operating at a speed of 1,800 RPM with a 1HP power rating, the motor has a 4.5A current rating and 180VDC voltage rating. Designed in a 56B type NEMA frame size enclosure, it is suited for versatile use across sectors like robotics, pharmaceuticals, oil & gas, and packaging among others. Possessing high performance and quality, the motor's applications range from laser eye surgery to Oil & Gas drilling. The patented anti-cogging magnets ensure smooth low-speed operations while other features include dynamic braking and high overcurrent capacity. The motor, UL recognized, CSA certified and CE marked, is constructed with a durable non-vented NEMA C face TENV configuration, a fused commutator, sealed bearings and a polyester impregnated armature. Other notable attributes include constant force brush springs and field-replaceable brushes.
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Technical Specifications
  • Product: SR3658-2255-7-56B
  • Manufacturer: Kollmorgen
  • Product Line: SR Series
  • Motor Type: Continuous Duty DC motor
  • Rating: SCR
  • Operating Speed: 1800 RPM
  • Power Rating: 1HP
  • Current Rating: 4.5A
  • Voltage Rating: 180VDC
  • Frame Size: 56B NEMA
  • Use Case: Robotics, Pharmaceuticals, Oil & Gas, Printing, Packaging, Converting etc
  • Applications: Space, Submarines, Surgical robots, Artificial Hearts, O&G Drilling etc
  • Features: Highly Efficient, Light weight, Compact, Dynamic braking, Anti-Cogging magnets, High Overcurrent Capacity
  • Construction: Rugged
  • Insulation Class: Class H
  • Certifications: UL Recognized, CSA Certified, CE Marked
  • Configuration: NEMA C face TENV non-vented
  • Commutator Type: Fused
  • Bearings: Standard large sealed
  • Armature Type: Polyester impregnated
  • Additional Features: Field-replaceable brushes, Constant force brush springs, Removable base

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Phone Number: 1-888-551-3082

International: 1-919-443-0207

Fax: 1-919-867-6204