AKM42E-GNCNR-00 Kollmorgen
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The Kollmorgen AKM42E-GNCNR-00 is part of the AKM Synchronous Servo Motors series and features a frame dimension of 84mm with an alternative Flange Variant G. This standard configuration servo motor uses a resolver feedback system with 2 poles and single turn inductive feedback. It has two SpeedTec Ready connectors and comes without a brake, featuring a smooth shaft.
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Product Description:
The AKM42E-GNCNR-00 is a rotary servo motor engineered by Kollmorgen for the AKM Synchronous Servo Motors series. It provides closed-loop torque and speed control, allowing automation equipment to achieve precise positioning without mechanical backlash. The unit is supplied without a holding brake, so load retention must be provided by an external mechanism or continuous drive torque. This arrangement is suitable for axes that do not require an internal brake to secure the load when motor power is removed.
The motor frame measures 84 mm across the mounting face and has a rotor length index of 2, providing a stack depth that balances continuous torque with modest inertia. A smooth shaft simplifies connection to gearboxes or direct-drive mechanisms where keyed engagement is unnecessary. Power and feedback are routed through 2 SpeedTec-ready connectors that support quick quarter-turn locking during installation. Mechanical attachment uses alternative flange variant G, which provides a different pilot diameter and bolt circle for machines that require this mounting pattern. Internal construction follows Kollmorgen’s standard customization level. The connector arrangement keeps the power and feedback interfaces separate while permitting compact cable routing around the motor housing.
Position information is generated by a two-pole resolver that produces sine-cosine signals for rotor position measurement. The drive interpolates these analog signals to calculate the shaft angle and maintain closed-loop control over the operating speed range. The resolver body uses feedback size 10/15/21, which matches the designated housing envelope. The motor provides single-turn inductive feedback, so one mechanical revolution corresponds to a complete feedback cycle and supports straightforward homing. Winding code E indicates resistance and inductance parameters selected for rapid acceleration with moderate thermal loading. The resolver operates without optical components, making its electromagnetic feedback method suitable for industrial motion systems exposed to vibration or temperature changes.
