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Kollmorgen AKM65L-ACCNR-0-0
Product Brief:
Mid-size AKM servomotor with 138 × 138 mm flange, low-cogging stator design, Neodymium magnets, and standard 2-pole brushless resolver. “L” = long-stack winding giving higher continuous torque; “ACCNR” = resolver feedback, no brake, smooth shaft (no keyway on some variants — keyed also available).
Detailed content
Key Technical Specifications:
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Frame Size: AKM65 (Flange 138 × 138 mm, shaft Ø32 mm)
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Rated (Continuous) Torque @ 100 K temp rise: 25.0 Nm
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Rated (Continuous) Torque @ 60 K temp rise: ~20.0 Nm
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Continuous Current (RMS): ~12.2 A
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Peak Torque: ~65.2 Nm
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Peak Current: ~36.6–38 A (depending on winding)
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Rated Speed: up to 6000 rpm (mechanical max); rated speed at nameplate torque typically 1500–3000 rpm depending on winding
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DC Bus / Winding Voltage: 320 VDC typical (400 VAC line-to-line)
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Feedback: Brushless resolver (accuracy ±8 arc-min), mounted on rear
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Brake: None (NR = No Brake)
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Temperature Sensor: PTC thermistor
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Insulation Class: Class F (155 °C)
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Protection: IP54 standard (IP65 with shaft seal option)
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Inertia: ~40 × 10⁻⁴ kg·m²
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Pole Pairs: 5 (10 poles)
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Mass: ~15.4 kg
Features:
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Best-in-class torque density for frame size
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Low ripple torque → smooth low-speed operation
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RoHS compliant, CE / UL recognized
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Compatible with AKD / S300 / S700 / KC1 drives
Applications: CNC rotary axes, multi-axis machining centers, printing cylinders, filling/turreting stations, robotic shoulder/elbow joints.
Installation & Notes:
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Use flexible coupling or precision helical gear to minimize side thrust on bearings.
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Route resolver cable separately from motor power leads; shield and ground at drive end.
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If replacing a motor with brake, verify the new AKM65L-ACCNR has no brake — external holding device may be required.
