Product Description:

Bosch Rexroth Indramat manufactures the SE-LB3.075.060-04.000 synchronous servo motor within the SE Synchronous Servo Motors series. Designed for closed-loop drive systems, the unit converts drive current into controlled rotary motion for indexing tables, feeders, or high-speed tool changers. Its compact frame and built-in holding brake allow direct coupling to machinery while maintaining accurate shaft positioning when power is removed, which supports consistent cycle times in industrial automation lines.

During continuous operation, the motor can reach a nominal speed of 6000 rpm while delivering its rated mechanical output. The electromagnetic circuit produces a static torque of 8.2 Nm at standstill, and each ampere applied to the windings adds torque at a constant of 0.58 Nm/A measured at 40 °C. Dynamic events are handled by a peak phase current of 84 A, whereas steady holding situations draw 14 A. Control loops use a back-EMF gradient of 63 V per 1000 rpm that matches medium-voltage inverters. Copper losses are influenced by a winding resistance of 0.90 Ω at 20 °C, and commutation smoothness is aided by a winding inductance of 8.7 mH. The rotor couples to loads through a Ø19 × 40 mm shaft secured by an A6 × 6 × 32 mm feather key, and the overall assembly length with the brake installed is 327 mm.

For static holding or vertical-axis safety, the integrated brake supplies 8.0 Nm of holding torque when energized by 24 V ±10% with a nominal current of 0.8 A. The motor-and-brake mass of 13.5 kg supports straightforward mounting, and the rotor’s moment of inertia of 1.66 × 10⁻³ kg·m² supports rapid acceleration while limiting overshoot. Energy at standstill is absorbed by the thermal mass, and the laminated stator helps keep inductive heating predictable. The round housing accepts standard flange adapters for direct mounting.