AKM41H-EKCNAB-00 Kollmorgen
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The Kollmorgen AKM41H-EKCNAB-00 is a synchronous servo motor from the AKM Synchronous Servo Motors series. It features a multi-turn optical BISS B Encoder with a feedback resolution of 2048 lines per revolution and uses two SpeedTec Ready connectors. This motor is built with an 84mm frame dimension, has an open keyway shaft detail, and does not include a brake system.
Internal Product Review
The AKM41H-EKCNAB-00 is a Kollmorgen AKM synchronous servo motor with an open keyway shaft and a brake-free configuration. The BISS B encoder and 2048 lines/rev feedback resolution support precise motion control and dependable position feedback. Two SpeedTec Ready connectors simplify integration, and the multi-turn optical feedback makes this motor a strong choice for dynamic servo applications.
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Product Description:
The AKM41H-EKCNAB-00 is a synchronous servo motor built by Kollmorgen for the AKM Synchronous Servo Motors series. As a compact rotary actuator, it converts drive current from a matched servo amplifier into precisely controlled shaft motion for packaging machines, gantry axes, and other automated work cells. Kollmorgen integrates rare-earth magnet technology and tightly coupled feedback so the motor produces repeatable torque with minimal position error. In industrial automation, it functions as the primary mover that translates electronic motion commands into mechanical rotation along a single axis.
Electrical and mechanical connections are streamlined by two SpeedTec-ready connectors that provide keyed power and feedback terminations; these bayonet couplings allow tool-free wiring and resist vibration in moving machine components. Position data is generated by a BiSS B encoder that delivers incremental and absolute signals, and its effective resolution reaches 2048 lines per revolution, enabling tight velocity loops at low speeds. The motor frame measures 84 mm across the mounting pilot, so it fits directly into IEC size 80 gearboxes without adapters. A hardened shaft with an open keyway transmits torque through positive-engagement couplings, and because the unit is supplied without a brake, the holding function must be provided by the drive or external mechanics.
The motor uses multi-turn optical feedback, which counts revolutions internally and retains position through power cycles by using light-based code tracks instead of magnetic sensing. Feedback compatibility with various controllers is indicated by the AD34/AD58 type code, which specifies the connector pinout and communication timing. The stator geometry uses rotor length index 1, the shortest stack in the 41 frame, providing moderate continuous torque while keeping inertia low for rapid acceleration. Its electrical characteristics correspond to the H winding, which matches the impedance and back EMF to drives that supply higher voltage at lower current and supports faster operating speeds without requiring an oversized amplifier.
