Digital guide
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Kollmorgen AKM44S-SSC2R-0
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Product Name: AKM44S AC Synchronous Brushless Servo Motor
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Product Introduction: Part of Kollmorgen’s AKM™ family — a compact, high-torque-density 3-phase permanent magnet synchronous servo motor designed for direct coupling to Kollmorgen AKD / S700 / SERVOSTAR drives in industrial automation, packaging, and robotics.
Detailed content
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Key Specifications:
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Frame Size: AKM4 (approx. 84 mm square flange, 100 mm bolt circle)
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Stack Length: Index 4 (longest stack for AKM4 → highest torque)
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Continuous Stall Torque (Tc): ~5.88 – 6.00 Nm @ 100 °C winding rise
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Peak Torque (Tp): ~20.2 – 20.4 Nm
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Rated Speed: up to 4000 rpm; max mechanical speed 6000 rpm
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Rated Power: approx. 1.6 – 1.73 kW (depending on bus voltage)
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Torque Constant (Kt): ~0.59 Nm/Arms
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Back EMF Constant (Ke): ~37.8 Vrms/krpm
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Rotor Inertia: ~0.000273 kg·m²
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Winding Max Bus Voltage: 640 VDC
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Feedback: Resolver (SSC2R code = resolver feedback, smooth shaft, no brake, standard connectors)
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Brake: None (R = no brake)
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Connector: Intercontec / SpeedTec-style round connectors
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Protection: IP54 (standard AKM) or IP65 depending on seal option
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Insulation: Class F (155 °C)
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Cooling: Natural convection / self-cooled
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Construction & Materials: Laminated stator core with rare-earth Neodymium-Iron-Boron (NdFeB) magnets in the rotor; aluminum alloy housing; stainless steel shaft; molded epoxy encapsulation on windings.
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Operating Principle: 3-phase sinusoidal PMSM — rotor position fed back via resolver to servo drive for field-oriented control (FOC).
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Installation & Notes:
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Mount per IEC B5flange (face-mount).
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Align coupling to avoid side load on bearing.
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Use shielded feedback & power cables; ground motor frame to panel.
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Do NOT operate above max bus voltage or ambient >40 °C without torque de-rating.
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