AKM74S-GCH2DB02 Kollmorgen
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The Kollmorgen AKM74S-GCH2DB02 is a synchronous servo motor in the AKM Synchronous Servo Motors series with a 24V holding brake and a frame dimension of 188mm. It features an EnDAT 2.1 encoder with multi-turn optical feedback and a resolution of 512 or 2048 lines per revolution. The motor has a keyway shaft detail and uses a special winding designation.
Internal Product Review
The AKM74S-GCH2DB02 is a Kollmorgen AKM synchronous servo motor built with a special winding and a keyway shaft. An EnDAT 2.1 encoder paired with multi-turn optical feedback gives the motor precise position tracking for demanding motion applications. A 24V holding brake adds dependable axis retention, making the unit a strong servo choice for controlled positioning.
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Product Description:
The AKM74S-GCH2DB02 is a servo motor manufactured by Kollmorgen and supplied within the AKM Synchronous Servo Motors series. Designed for precision position and velocity control, it serves as the electromechanical actuator in automated gantries, packaging axes, and similar motion tasks. The unit’s design merges a permanent-magnet rotor with high-resolution feedback so closed-loop drives can achieve rapid settling times and repeatable moves under changing process loads. This type of motor is commonly paired with a digital servo amplifier that continuously adjusts current in response to load, speed, and position feedback.
The motor carries a 24 V holding brake that clamps the shaft when power is removed, allowing vertical axes to keep their load suspended without external locks. Position data enter the drive through a 512/2048 lines/rev optical scale processed by an EnDAT 2.1 encoder, giving fine electrical angle detection as well as digital diagnostics. Because the measuring system is multi-turn optical, absolute position across mechanical revolutions is retained after shutdown, eliminating homing cycles. The sensor head follows the EQN1125/1325 format, so standard Kollmorgen cables mate directly with the controller. That feedback arrangement lets the controller establish rotor angle at startup and maintain precise commutation throughout the speed range. A purpose-matched special winding lowers copper losses in intermittent duty cycles and aligns the motor’s impedance with drives that supply elevated bus voltages.
For mechanical attachment, the unit is supplied in alternative flange variant G, allowing direct mounting to gearboxes that follow the ISO 9409 hole pattern. Power and feedback exit on the same side through one M40 power connector and one SpeedTec-ready feedback connector, reducing cabinet wiring bends. The frame measures 188 mm across the square face, and the rotor length code is 4, a geometry that balances continuous torque with compact depth. A keyed shaft simplifies coupling to pulleys or pinions. The keyed output also supports positive torque transmission in couplings that cannot rely on friction alone.
