Product Description:

The SE-B4 130.030-00.000 is a synchronous servo motor in the SE Synchronous Servo Motors series from Bosch Rexroth Indramat. Designed for closed-loop positioning tasks, this motor interfaces with Rexroth digital drives to deliver regulated speed and torque to machine tools, pick-and-place gantries, and assembly stations. In continuous service, the unit acts as the electromechanical link between the controller and the load, converting three-phase current into rotational motion while feeding back precise rotor data so the automation system maintains repeatable accuracy.

The motor uses an IM B5 flange, allowing the housing to bolt to a machine wall while the 24 mm by 50 mm shaft couples to gears or pulleys. At its nominal operating point, the rotor reaches 3000 rpm and can hold a static torque of 13 Nm without exceeding thermal limits. Torque rises linearly with armature current according to the constant of 0.80 Nm/A, which helps the drive respond predictably to changing loads. The windings have an inductance of 9.7 mH, and that value affects current rise and switching behavior in the connected inverter. Additional electrical data include a standstill current of 15 A, a back EMF constant of 99 V per 1000 rpm, and a winding resistance of 0.96 Ω. The maximum motor length is 283 mm, which helps when checking available installation space inside compact machine frames.

For short acceleration periods, the motor can deliver a peak torque of 27.6 Nm when the inverter supplies up to 84 A. During these transients, the rotor inertia of 3.08 × 10⁻³ kg·m² supports rapid speed changes without adding excessive inertia to the axis. The motor weighs 16.0 kg, which helps limit structural loading in multi-axis gantries and other moving assemblies. This combination of torque, current capability, and rotor inertia makes the unit suitable for responsive indexing, positioning, and repeat-motion applications where stable servo control is required.