Product Description:

The SE-B4-090-030-10.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. Designed for closed-loop drive systems, the unit translates commanded current into precise rotary motion so machine axes can start, stop, and reverse within milliseconds. Its construction supports medium-frame installations where compact size and regulated torque are necessary for conveyor indexing, format adjustment, labeling heads, and similar industrial automation duties.

At its nominal operating point, the rotor turns at 3000 rpm, and the motor can deliver up to 17.3 Nm during short load surges. Continuous holding capability is represented by a static torque of 9.0 Nm. Dynamic peaks draw 62 A from the inverter, yet the phase current reaches its commanded value in only 8.2 ms. This quick electrical response is aided by a winding inductance of 16.1 mH and a resistance of 1.92 Ω that limits heat generation. The housing bolts to a 142 mm square flange, weighs 13 kg, and measures 252 mm in overall length, so mounting clearances can be determined accurately. A 24 × 50 mm shaft transmits torque directly to couplings or gearboxes, while the mechanical time constant of 5.1 ms indicates how quickly the rotor can accelerate when voltage is applied.

The rotor has an inertia of 2.18 × 10⁻³ kg·m², which helps keep overshoot low during step-and-settle moves. When the shaft is clamped electronically, the drive supplies a standstill current of 10 A to sustain the rated load without exceeding winding temperature limits. Torque rises proportionally to phase current through a constant of 0.87 Nm/A. The resulting back EMF scales with speed at 97 V/1000 rpm, providing a reference for regenerative voltage and drive sizing. The electrical and mechanical response characteristics support precise acceleration profiles across the motor’s operating range.