D2.SM.000-4400 KEB
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The KEB D2.SM.000-4400 is part of the SM Synchronous Servo Motors series and has a rated power of 2.4 kW with a rated speed of 4000 rpm. This servo motor provides a rated torque of 5.8 Nm and a maximum torque of 31.5 Nm, with a weight of 7.9 kg. It features a square flange of 110 mm and operates with a rated voltage of 400 V.
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Product Description:
The D2.SM.000-4400 is a synchronous servo motor produced by KEB within the SM Synchronous Servo Motors series. It is built for industrial automation tasks where precise velocity and torque control are required, such as pick-and-place axes, packaging machinery, or indexing tables. By converting controlled three-phase electrical input into proportional mechanical rotation, the unit allows a drive controller to position loads repeatably without mechanical play or variable transmission ratios. Its electromagnetic design permits tight speed regulation under varying load, making it suitable for indexing, forming, and light machining stations found in automated production cells.
At its continuous operating point, the motor delivers 2.4 kW of mechanical power while turning at 4000 rpm. This output comes from a rated electromagnetic torque of 5.8 Nm as the stator windings carry 5.8 A from a three-phase 400 V bus. The voltage constant of 89.0 V/1000 rpm guides commutation setup because back-EMF rises linearly with speed. Copper losses are set by a 1.7 Ω phase resistance, and the 7.05 mH inductance shapes current ripple. Static limits include a stall current of 6.4 A and stall torque of 7 Nm. A 110 mm square flange and a 19 mm shaft provide direct coupling to gearheads or timing pulleys.
Transient moves rely on a peak shaft capacity of 31.5 Nm, which the inverter can reach when it supplies up to 30.7 A. The rotor stores energy equivalent to 7.4 kg·cm², giving the axis enough inertia to damp load fluctuations yet respond quickly to command changes. With a mass of 7.9 kg, the motor can be installed on moving carriages without excessive structural reinforcement. These dynamic ratings support shorter cycle times when the system stays within the manufacturer’s duty limits for peak duration and repetition.
