Product Description:

The AKM31H-SSS2S-03 is a brushless servo motor manufactured by Kollmorgen as part of its AKM Synchronous Servo Motors series. In an automation cell, this motor delivers precise, closed-loop torque to position belts, rotary indexers, or small gantry axes, providing repeatable motion with limited overshoot. With an optimized electromagnetic design and low rotor inertia, the unit fits tightly into control architectures that rely on responsive servo performance during frequent start-and-stop motion.

One key mechanical safeguard is the integrated 24 V holding brake, which clamps the rotor when power is removed so vertical loads do not back-drive. Electrical terminations are routed through a special connector arrangement, and this pin layout supports organized cable routing while maintaining IP-rated sealing. Position and velocity data leave the motor through a special feedback arrangement that aligns with Kollmorgen digital drives for 23-bit resolution. The housing spans a 70 mm square frame, allowing the motor to bolt onto standard IEC mounting patterns while conserving installation space. Internally, copper fill and lamination geometry follow the performance profile of the H winding, so rated speed and current balance favor continuous duty on 230 V lines.

Mechanical coupling is handled by a special flange whose pilot diameter and bolt circle match customized gearheads, which helps keep centerline error low during acceleration. Axial magnetic length uses rotor length index 1, resulting in modest inertia that supports fast stop times and smooth speed changes. Torque is transmitted through a special shaft detail that includes a machined flat for set-screw hubs, reducing backlash without keyway stress. The flange, shaft, and magnetic stack remain concentric under thermal growth, which helps preserve alignment between the power and feedback elements.