Product Description:

The AKM21E-CKBNEH-00 is a synchronous servo motor produced by Kollmorgen and assigned to the AKM Synchronous Servo Motors series. It is intended for closed-loop positioning and speed-controlled axes in compact automated equipment. Its responsive design supports applications that require rapid acceleration, accurate movement, and limited installation depth, including indexing tables, packaging equipment, and pick-and-place systems.

The motor uses two SpeedTec-ready connectors that separate the power and feedback lines, allowing the couplers to be disconnected without tools. Its 58 mm frame allows the unit to mount directly to machines that use IEC sizing for small servo motor envelopes while accommodating the torque associated with higher pole counts. Mechanical inertia is influenced by rotor length index 1, which indicates a short magnetic stack that helps reduce acceleration time constants in repetitive motion applications. Output torque is transmitted through a shaft with an open keyway; the key prevents slip between the motor and a pulley or coupling while leaving the shaft end accessible for hubs that require additional engagement depth. The motor uses winding code E, which matches the frame with compatible drives that supply the current and voltage required for its operating speed range.

The unit is supplied without a brake, so holding torque during a power loss must come from the drive or an external mechanical lock. This arrangement is suitable for horizontal axes and other applications where the load does not require an integrated holding device. Mounting flexibility is provided by alternative flange variant C, which has a hole pattern that differs from the standard flange and can align with compatible gearheads or specialized machine frames. The short rotor stack, compact frame, separate power and feedback connections, and keyed output interface allow the motor to fit into tightly arranged multi-axis machinery without requiring an unusually deep mounting area.