Product Description:

The SE-B5.320.030-00.000 synchronous servo motor is manufactured by Bosch Rexroth Indramat and belongs to the SE Synchronous Servo Motors series. This three-phase permanent-magnet unit is used in industrial automation for accurate rotary motion where coordinated position and velocity control are required, such as on feed axes, indexing tables, and packaging lines. By coupling directly to ball screws or gearboxes, the motor transmits closed-loop torque commands from a digital drive to mechanical loads with minimal compliance.

At its nominal operating point, the rotor can maintain 3000 rpm, delivering a continuous standstill torque of 38 Nm while drawing a standstill current of 34 A from the drive amplifier. The electromagnetic conversion efficiency is represented by a torque constant of 1.11 Nm/A, meaning each ampere produces just over one newton-meter of torque. The windings accept up to 256 A for short intervals to support peak acceleration and sudden load changes. Dynamic current rise is influenced by the phase inductance. The 4.6 mH phase inductance works with the 0.22 Ω phase resistance and a 20.4 ms electrical time constant to shape current loops and limit ripple under high-frequency pulse-width modulation control.

The motor generates up to 92 Nm of torque for positioning bursts before reaching its thermal limits. Heat buildup is moderated by a 40 min thermal time constant and a mass of 31 kg, allowing intermittent duty without rapid temperature swings. The rotor has a reflected inertia of 13.6 × 10⁻³ kg·m², which is suitable for medium-mass machine axes and supports servo tuning with short settling times. Mechanical integration is straightforward because the housing measures 345 mm in length. The 32 × 58 mm shaft has a keyway and feather key that transmit power without slipping. A voltage constant of 118 V/1000 rpm provides predictable back electromotive force levels for the drive’s field-oriented control algorithms.