Product Description:

The SE-B4.090.030-10.015 is a brushless synchronous servo motor produced by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. Designed for closed-loop control of positioning and feed axes, the unit converts electrical commands from a compatible drive into precise shaft rotation for packaging, material-handling, or assembly equipment. Its permanent-magnet rotor and feedback provisions allow the automation controller to regulate speed, torque, and position within the motor’s operating limits.

This unit achieves a nominal speed of 3000 rpm while delivering a static torque of 9.0 Nm at the shaft. When supplied by the SM 10/20 drive, it can reach a maximum electromagnetic torque of 17.3 Nm during short peak loads. Continuous thermal operation is supported by a 13.0 kg housing that measures 252 mm long, allowing heat to disperse over a thermal time constant of 28 minutes. Peak dynamic loads are supported by a phase current capability of 62 A, while the winding resistance is 1.92 Ω. The motor body has an IP67 enclosure and an angled flange socket, providing protection against dust and temporary water immersion. A rotor inertia of 2.18 × 10⁻³ kg·m² supports moderate acceleration without placing excessive demand on the drive.

The plain shaft measures Ø24 × 50 mm and is supplied without a keyway, so couplings must use external clamping or shrink-fit methods. During standstill, the phase current setpoint is limited to 10 A. The torque constant of 0.87 Nm/A supports holding torque while helping prevent excessive winding temperature. At operating speed, the back electromotive force rises linearly according to a voltage constant of 97 V/1000 rpm, which can be used to confirm DC-bus requirements. The winding inductance is 16.1 mH, helping reduce current ripple during drive switching. The motor’s mass also moderates temperature changes during intermittent operating cycles.