Product Description:

The SE-LB3.033.060-10.000 is a synchronous servo motor developed by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. It converts electrical energy into precisely regulated rotational motion, allowing machine axes, pick-and-place heads, and indexing tables to achieve repeatable speed and torque profiles in automated equipment. The motor operates at a nominal speed of 6000 rpm, providing headroom for gear reduction while still meeting top-end cycle rates.

At standstill, the motor can hold a load with 3.8 Nm of static torque, produced continuously when the windings carry the specified standstill current of 7.7 A. For every ampere supplied, the electromagnetic circuit generates 0.49 Nm/A, so torque output scales linearly with commanded current. During rapid acceleration, the drive may supply up to 46 A, which is the peak value permitted for short-term operation. A winding inductance of 18 mH moderates current ripple and works with a voltage constant of 60 V/1000 rpm to shape the drive’s pulse-width modulation parameters. The phase resistance is 2.36 Ω, which affects resistive winding losses during operation. A tachogenerator output of 1.8 V/1000 rpm ±5% provides speed feedback to the connected drive.

The maximum developed torque reaches 9.2 Nm in SM 10/20 duty, allowing brief overloads without demagnetizing the rotor. Mechanical response is influenced by a rotor inertia of 0.81 × 10⁻³ kg·m², enabling fast reversals while minimizing overshoot. The assembly weighs 8.5 kg and measures 256 mm in overall length, allowing installation in compact multi-axis frames. The shaft has no keyway, so torque is transferred through a friction coupling or shrink disc. A 20-minute thermal time constant indicates how quickly the copper windings and iron core approach thermal equilibrium after a change in load. This thermal behavior allows the drive to account for temperature changes during repeated acceleration, deceleration, and holding cycles.