Product Description:

The AKM21C-ANB2R-00 is a brushless AC servo motor built by Kollmorgen within the AKM Synchronous Servo Motors series. This compact motor belongs to the 21 frame class and is intended to provide precise position and speed control for packaging lines, pick-and-place modules, and other motion axes that require real-time feedback. By combining a permanent-magnet rotor with digital drive electronics, the unit converts commanded current into tightly regulated torque and forms a closed-loop actuator for industrial automation cells.

This model includes a 24 V holding brake that secures the load when power is removed, eliminating the need for external mechanical locks on vertical or suspended axes. Power and feedback are routed through 2 SpeedTec Ready connectors, allowing keyed push-turn coupling during installation. Rotor position is monitored by a resolver, giving noise-immune analog signals to the drive for commutation and velocity loops. The housing follows a 58 mm frame dimension, so it shares mounting holes and pilot diameters with other IEC size 58 devices. A smooth shaft is supplied, making direct coupling to clamps, sleeves, or precision gearheads possible without keyway stress risers.

Torque generation is set by the motor’s winding designation C, which matches mid-voltage AKD drives for balanced speed and continuous current. Mechanical interface accuracy is maintained by the IEC flange with accuracy N, supporting repeatable concentricity when bolted to machinery frames. Electrical feedback density is limited to a 2-pole feedback resolution; combined with the single-turn inductive design, this resolution is adequate for medium-precision indexing tasks. The motor geometry is further identified by the feedback type for sizes 10/15/21 and a rotor length index of 1, indicating the shortest rotor stack in the product family and minimizing mass for high-dynamic moves, while the customization level remains standard.