Product Description:

The AKM73M-ACCNR is a permanent-magnet servo motor built by Kollmorgen for the AKM Synchronous Servo Motors series. It operates as a rotary actuator in automated machinery, supplying controlled motion for positioning stages, handling devices, indexing units, and other servo axes that require accurate response to changing commands. When paired with a matched drive, the motor supports precise velocity and position regulation while maintaining compact outer dimensions that help it fit into equipment where installation space is limited. Its layout is suited to machines that need repeatable motion, fast response to command changes, and reliable torque delivery across frequent operating cycles.

The unit is supplied without a brake, so any load that must remain fixed at standstill needs external holding force or drive-produced torque. Cable entry uses 2 SpeedTec Ready connectors, which apply a quarter-turn bayonet connection to speed installation and maintain dependable shield continuity during repeated service access. The housing has an IEC flange with accuracy N, and its 188 mm frame dimension provides a substantial stator cross-section for mid-range torque output in common machine frames. Power is transmitted through a keyway shaft, which supports secure coupling to pulleys, gear inputs, and other driven elements that depend on positive torque transfer. This arrangement also helps maintain alignment at the machine interface where couplings and belt-driven components need consistent shaft positioning.

The motor uses rotor length index 3, which indicates a medium active stack intended to balance available torque with manageable rotor inertia during acceleration and deceleration. Its electrical behavior follows winding designation M, so the current constant and back-EMF remain aligned with compatible servo amplifiers that are set up for this coil arrangement. In multi-axis machinery, that balance can help limit unnecessary inertia loading on the drive while still supporting responsive motion on transfer and handling axes. The selected winding also helps the amplifier produce predictable torque through changing speed commands, which is useful in applications that cycle frequently between rapid movement and precise positioning.