Product Description:

The SE-LB3.055.030-00.000 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. This rotary actuator converts electrical energy into controlled mechanical motion for positioning tasks in automated machinery, conveying systems, and pick-and-place stations. It supplies rapid response and accurate speed regulation, making it a compact drive element that connects directly to a load through its keyed shaft. Integration with a dedicated drive controller allows the motor to close velocity and torque loops that support repeatable cycle execution in industrial equipment.

At its rated operating point, the motor reaches a nominal speed of 3000 rpm and delivers a static torque of 6.8 Nm directly to the load through a 19 mm shaft that is 40 mm long and equipped with an A6×6×32 feather key for slip-free coupling. The torque constant is 1.02 Nm/A, so the converter must supply approximately 6.7 A of standstill current to achieve the stated stall torque. With a voltage constant of 113 V/1000 rpm, the induced back EMF rises linearly with speed and helps determine the sizing of the drive DC bus. An electrical time constant of 8.4 ms, together with a 2.5 mm² motor cable cross-section, supports stable current regulation during rapid load changes while the overall housing length stays within 287 mm.

The rotor’s dynamic behavior is influenced by a moment of inertia of 1.21 × 10⁻³ kg·m², which supports quick acceleration without demanding excessive drive power. Current transients are filtered by a phase inductance of 30 mH and a phase resistance of 3.53 Ω. These electrical values affect damping and thermal dissipation during cyclic duty. In mechanical integration, a 95 mm pilot diameter centers the flange, and the assembly mass stays at only 10.6 kg, which eases handling when the optional holding brake is not fitted.