Product Description:

The SE-B4.090.030-00.011 is a synchronous servo motor produced by Bosch Rexroth Indramat in the SE Synchronous Servo Motors series. It serves as the electromechanical actuator in closed-loop drive systems, translating current from a servo amplifier into repeatable shaft rotation for pick-and-place gantries, indexing tables, or spindle heads. By supplying controllable torque across its operating range, the motor supports automation tasks that demand accurate speed tracking and rapid positioning. This operating profile suits synchronized axes that require consistent starts, stops, and speed changes during repetitive machine cycles.

At its rated operating point, the shaft can reach 3000 rpm, while delivering 9.0 Nm of static torque whenever movement is halted but holding force is still needed. A standstill current of 10 A is required to achieve that torque, and every additional ampere contributes roughly 0.87 Nm/A thanks to the torque constant. The winding resistance is 1.92 Ω, and the electrical time constant is 5.1 ms, letting current rise fast enough for tight speed loops. Flange accuracy class R and vibration severity class R keep mechanical runout and vibratory loading within limits that protect feedback devices and couplings during high-speed operation.

The motor’s dynamic response is helped by a rotor inertia of 2.18 × 10^-3 kgm², allowing fast acceleration without overtaxing the drive. Overall length is held to 252 mm, and the assembly weighs 13.0 kg, so it can be mounted on compact axes without excessive support framing. The compact housing also helps when the motor must fit near linear guides, tooling plates, or enclosed machine frames. A keyed shaft sized Ø24 × 50 mm transfers torque directly to gears or pulleys, while electromotive behavior at speed is characterized by a back-EMF of 97 V/1000 rpm, and the stator’s 16.1 mH inductance helps filter high-frequency current ripple from the inverter.