Product Description:

The A1.SM.000-6260 is a three-phase synchronous servo motor built by KEB and assigned to the SM Synchronous Servo Motors series. Designed for closed-loop drives in industrial automation, it provides precise speed and position control for compact handling stations, light conveyors, and similar small-axis equipment. The motor uses a self-cooling aluminum housing and a 2-pole resolver, so normal operation does not require an external fan or a separate digital encoder. The resolver gives the drive continuous rotor-angle feedback, which supports stable commutation and responsive speed regulation during repetitive motion.

At its nominal operating point, the unit delivers 200 W of mechanical power at 6000 rpm. Continuous shaft torque is 0.32 Nm with a phase current of 1.0 A, and the stator resistance is 21 ohms. The winding inductance is 9.9 mH, which helps smooth current transitions during vector control and reduces abrupt changes in phase current. This electrical load is modest enough for compact servo amplifiers that have limited continuous current capacity. With an overall length of 121 mm and a mass of 1.0 kg, the motor fits small machine frames, and internal airflow across the lamination stack removes heat without auxiliary blowers.

For short acceleration bursts, the shaft can reach a peak torque of 1.7 Nm. Under locked-rotor conditions, stall torque is 0.34 Nm at a stall current of 1.2 A. Rotor inertia is only 0.17 kg·cm², which supports rapid speed changes in light axes and helps limit overshoot during short indexing moves. The low rotating mass also reduces the effort needed for quick starts, stops, and direction changes in lightly loaded mechanisms. The resolver supplies rotor position feedback for commutation and speed control, and the three-phase synchronous design helps maintain smooth torque across the usable speed range.