Product Description:

The SE-B2.020.030-04.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat and assigned to the SE Synchronous Servo Motors series. It converts electrical drive commands into controlled rotary motion for automated handling equipment, small presses, and indexing stations where precise acceleration and shaft holding are required. When paired with a suitable servo drive, the motor supports repeatable positioning and controlled speed changes in compact automation systems. Its application range suits machinery that needs responsive motion without the larger footprint of high-power motor frames.

An integrated holding brake supplies 3.5 Nm of static clamping force and is energized from a control line rated at 24 VDC. The brake coil has a nominal current draw of 0.7 A. Dynamic response begins with an electrical time constant of 5.0 ms, which means current in the stator windings reaches 63% of its final value within that period. The mechanical time constant is 4.8 ms, so shaft speed settles quickly after a command change. The rotor and tachogenerator assembly has an inertia of 0.44 ×10^-3 kg·m², balancing quick reversals with stable load transitions. Rated operation occurs at 3000 rpm, where the motor delivers 2.9 Nm of continuous torque with 2.7 A of standstill current. Peak demand can be supported by up to 16 A, and the torque constant is 1.10 Nm/A as current rises. The windings have a resistance of 14.7 Ω, which supports matched drive tuning. Power is transmitted through a shaft machined with a keyway and feather key.

The motor can produce a maximum torque of 6.9 Nm for short acceleration bursts. Back EMF develops at 114 V/1000 rpm, giving the controller a predictable voltage reference during speed regulation. A winding inductance of 76 mH helps smooth current ripple at higher PWM frequencies and supports steady torque delivery during finely controlled motion.