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Kollmorgen AKM51G-ACCNR-00

Product Introduction:
The AKM51G-ACCNR-00 is an AC synchronous rotary servo motor from the AKM series, frame size 5 (mid-high torque), stack length 1 (short), winding code G. “ACCNR” decodes as: A = resolver/encoder style connector body, C = specific shaft/flange, C = incremental encoder (Commutation + incremental), N = no holding brake, R = rotatable connector or resolver feedback depending on generation. “-00” is base configuration.
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Detailed content

Technical Specifications (AKM5 frame reference):
  • Frame Size:​ AKM5 (approx. 142 mm flange)
  • Stack Length:​ 1 (shortest AKM5 stack)
  • Rated Speed:​ up to 6000 rpm (winding G tuned for mid-speed)
  • Stall Torque (Tc):​ approx. 14.1 Nm max for AKM5 family (stack 1 lower, typically 4–6 Nm continuous)
  • Peak Torque:​ up to 38.4 Nm (frame max)
  • Rated Power:​ up to 3.87 kW at max bus for AKM5
  • Bus Voltage:​ 75 VDC / 120–240 VAC / 480 VAC windings available
  • Feedback:​ incremental encoder with commutation tracks (variant dependent)
  • Protection:​ IP65 standard, IP67 washdown optional
  • Insulation:​ Class F (155 °C rise)
  • Brake:​ none
  • Shaft:​ smooth or keyed, closed shaft end
Functional Characteristics:
  • Very low cogging, low harmonic distortion
  • Direct plug-and-play with AKD using SFD or smart encoder
  • Intercontec connector, rotatable
  • Rotor inertia optimized for moderate dynamic cycles
Application Scenarios:
  • Fillers and cappers
  • Print registration rollers
  • Medical automation
  • General-purpose 3–5 kW servo axes
Structure & Materials:
  • Aluminum housing, anodized
  • Laminated stator, epoxy-vacuum impregnated
  • NdFeB rotor, dynamic balanced
  • Stainless shaft, FKM seal
  • Standard industrial grease bearings
Installation Requirements:
  • Flange pilot diameter per AKM5 drawing
  • Coupling misalignment <0.1 mm
  • Motor earth braid to cabinet
  • Ambient 0–40 °C, derate 2.5 %/°C to 55 °C
Usage Notes:
  • Holding brake absent: vertical load needs external brake
  • Do not pressure-wash IP65 non-washdown unit
  • Encoder must be paired with drive that supports the exact commutation track count

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