AKM42H-BKCNAB-00 Kollmorgen
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The Kollmorgen AKM42H-BKCNAB-00 is part of the AKM Synchronous Servo Motors series and features a frame dimension of 84 mm with a NEMA flange configuration. It comes without a brake, includes 2 SpeedTec Ready connectors, and has an open keyway shaft. The servo motor uses a BISS B Encoder feedback system with 2048 lines per revolution and supports multi-turn optical feedback.
Internal Product Review
AKM42H-BKCNAB-00 is a Kollmorgen AKM synchronous servo motor with a BISS B encoder and 2048 lines/rev feedback resolution. Multi-turn optical feedback supports accurate position tracking, while the NEMA flange simplifies integration into standard motion platforms. An open-keyway shaft and dual SpeedTec Ready connectors make this motor a well-executed choice for responsive servo installations.
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Product Description:
The AKM42H-BKCNAB-00 is a synchronous servo motor produced by Kollmorgen within the AKM Synchronous Servo Motors series. It operates as a rotary actuator that converts commanded current into controlled torque and speed for packaging machines, pick-and-place heads, and other motion axes in industrial automation. Permanent-magnet excitation permits fast acceleration and tight velocity tracking for coordinated multi-axis systems. The motor can be paired with a compatible servo drive to regulate position, velocity, and torque in closed-loop applications.
This model is supplied without a brake, reducing its axial length for machines that rely on drive torque or external clamps to hold position. Power and feedback lines terminate at two SpeedTec-ready connectors, which allow tool-free quarter-turn locking and provide convenient access during maintenance. Its commutation and position loops are closed by a BiSS B encoder that delivers a base resolution of 2048 lines per revolution before electronic interpolation. A NEMA flange pattern aligns the motor with common gearboxes and mounting brackets, simplifying installation with compatible equipment. The separate connector arrangement keeps power and feedback wiring organized while allowing each cable to be routed independently.
With a compact 84 mm frame, the size 42 housing minimizes installation depth while accommodating rotor length index 2, which balances inertia and continuous torque. The encoder provides multi-turn optical feedback, so the drive retains absolute position across power cycles without batteries. Rotor data conform to the AD34/AD58 feedback type identifiers used by compatible Kollmorgen drives. Output torque is transferred through an open keyway shaft, providing positive engagement with pulleys or couplings. The keyway helps prevent rotational movement between the shaft and a properly fitted mechanical connection under changing loads. Thermal characteristics and voltage constants correspond to winding H, enabling operation with matched AKD amplifiers across their supported current range.