Description
The Kollmorgen AKM42E-EKGNR-01 is a high-torque, brushless AC servo motor designed for precision motion control applications. This AKM42E-EKGNR-01 motor belongs to the globally recognized AKM series, offering industry-leading power density and a low-inertia rotor that allows for rapid acceleration and high-speed positioning. Engineered for seamless integration with Kollmorgen AKD drives, this motor is ideal for packaging, factory automation, and robotics where compact dimensions and dynamic response are critical.
Technical Specifications
- Model Code: AKM42E-EKGNR-01
- Motor Frame Size: 4 (84mm Flange)
- Stack Length: 2
- Winding Type: E (Optimized for specific speed/torque curves)
- Mounting: 84mm IEC Flange
- Shaft Type: Smooth shaft (No keyway)
- Feedback: Smart Feedback Device (SFD) or EnDat encoder (Configuration dependent)
- Connector Type: Angular 1.0 connectors (G-type)
- Brake Option: N (No brake)
- Standard/Seal: R (IP65 rated with shaft seal) Utilizing high-grade neodymium-iron-boron magnets, the AKM42E-EKGNR-01 delivers smooth torque production with minimal cogging, ensuring stable performance even at low speeds for high-accuracy machining and pick-and-place tasks.

KOLLMORGEN AKM42E-EKGNR-01

KOLLMORGEN AKM42E-EKGNR-01
Model Comparison
The AKM42E-EKGNR-01 differs from the AKM41 or AKM43 series by its specific “stack 2” length, which offers a balanced compromise between physical motor depth and peak torque output. The “E” winding configuration is specifically tuned for higher speed thresholds compared to the high-torque “D” or “B” windings. Furthermore, the GNR suffix indicates a specific connector orientation and IP rating—unlike older “fixed cable” models, the angular connectors on this unit provide 360-degree flexibility for tight cabinet wiring.
Operational Tips
- Drive Pairing: For optimal performance, use the “Auto-Tune” feature in the Kollmorgen Workbench software when paired with an AKD drive to automatically map the motor’s thermal and commutation constants.
- Shaft Alignment: Since this model features a smooth shaft, ensure the coupling is tightened to the correct torque specification to prevent slipping during high-acceleration cycles.
- Thermal Management: While the AKM series is highly efficient, ensure the mounting surface acts as an adequate heat sink; if the motor frame exceeds 85°C, check for mechanical binding or excessive duty cycles.
- Connector Handling: When orienting the angular connectors, rotate them gently to the desired position before plugging in the cables to avoid stressing the internal wiring seals.
