Product Description:

The SE-LB3.055.030-14.015 servo motor is produced by Bosch Rexroth Indramat as part of the SE Synchronous Servo Motors series. It serves as a tightly controlled rotary drive for positioning or velocity-regulated axes in packaging lines, assembly cells, and material-handling equipment. A permanent-magnet rotor and carefully matched stator windings allow the unit to translate commanded current into motion with minimal delay, supporting applications that demand repeatable dynamic performance during frequent start-stop cycles.

This model achieves a nominal shaft velocity of 3000 rpm, which serves as the reference speed for closed-loop regulation. A torque constant of 1.02 Nm/A indicates how much mechanical output results from each ampere supplied, while the drive must accommodate a peak current of 40 A during rapid acceleration. The electrical time constant of 8.4 ms shows how quickly winding current reaches its target, and together with a 30 mH inductance it affects current-loop bandwidth. Copper losses are tied to a winding resistance of 3.53 ohms, and the motor requires 6.7 A at standstill to maintain rated holding torque. Generated back EMF follows a voltage constant of 113 V per 1000 rpm, which helps match the motor to suitable power electronics and regeneration limits.

Mechanical responsiveness stems from a rotor inertia of 1.21 x 10⁻³ kg·m² and a 3.8 ms mechanical time constant, permitting the shaft to meet a commanded ramp-up time of 27 ms. Short bursts can draw on a maximum torque of 16.2 Nm, whereas the static capability remains 6.8 Nm for steady load support. An integrated holding brake supplies 8.0 Nm of retentive torque when powered with 0.8 A, preventing drift during shutdowns or emergency stops. The complete assembly weighs 11.3 kg, which supports a rigid motor structure without making installation excessively cumbersome in compact multi-axis layouts.