Product Description:

The A1.SM.000-6400 is a compact servo motor produced by KEB within the SM Synchronous Servo Motors series. As a three-phase synchronous unit, it is intended for positioning and speed control in industrial automation tasks such as small gantry axes or tool spindles. The motor integrates directly with KEB inverters, and its self-contained design supports applications that require continuous, precise torque delivery without external forced cooling.

It uses self-cooling, so airflow around the housing is enough to dissipate losses during normal duty cycles. Rotor position feedback comes from a 2-pole resolver, providing analog angle information for closed-loop drives. The overall body length is 121 mm, which helps the motor fit machines with shallow mounting depths, and the flange follows the DIN B5 face-mount design with a pilot centering feature. Peak phase current during acceleration is limited to 5.0 A; this current level helps determine cable size and inverter selection while keeping stator temperature within class F limits. Under no-load conditions, the shaft can reach 11950 rpm, which supports high surface speeds for light spindle or blower duties.

During rated operation, the shaft turns at 6000 rpm while supplying a continuous torque of 0.32 Nm. This operating point corresponds to the 330 V winding variant used with 400 V class drives. For rapid indexing moves, the electromagnetic system can generate a maximum torque of 1.7 Nm, and stall torque is 0.34 Nm, so long static loads require thermal monitoring. The sealed construction meets IP65, which prevents dust ingress and withstands low-pressure water jets for installation on open machine frames without additional covers. Rotor inertia of 0.17 kg cm² combined with a mass of 1.0 kg supports quick servo response while limiting stored energy at the shaft.