Product Description:

The SE-LB3.033.060-14.000 is a brushless synchronous servo motor built by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. This model is intended for closed-loop industrial axes where rapid acceleration, exact positioning, and continuous velocity regulation are required. By combining permanent-magnet excitation with resolver feedback and a housing length of 263 mm, the unit serves as a compact rotary actuator that couples directly to gearboxes or machine shafts, reducing transmission losses and simplifying mechanical layouts in packaging, printing, and material-handling equipment.

The motor’s electrical profile supports a nominal shaft speed of 6000 rpm, allowing high cycle rates without mechanical overspeed. Under transient loading, it can deliver up to 9.2 Nm of torque, while drive electronics must be sized for a peak current draw of 46 A during acceleration. The copper phase windings present an inductance of 18 mH, which helps limit current ripple in the power stage. A phase-to-phase resistance of 2.36 ohms contributes to steady-state voltage drop and thermal losses at stall. Torque production scales with current at 0.49 Nm/A, so motion controllers can predict load response accurately. These parameters influence the motor’s electromagnetic behavior and the sizing of fuses, cables, and heatsinking.

The mechanical section holds position with a permanent-magnet brake that develops 8.0 Nm of static holding torque when a control supply applies 0.8 A to the brake coil. Rotor dynamics are influenced by a reflected inertia of 0.81 × 10⁻³ kg·m², which supports rapid start-stop sequences while helping smooth minor load disturbances. Combined with the 19 mm shaft and a 7.7 A standstill current rating, these features allow the motor to maintain precise position in vertical axes and to execute fast indexing moves without excessive drive bandwidth.