Product Description:

The SE-B2.020.030-00.018 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. Designed for closed-loop positioning and velocity control in industrial automation, it couples directly to machinery through an A5 × 5 × 25 key and a 14 mm k5 shaft, delivering repeatable rotary motion while limiting audible output to 58 dB(A) during rated operation. A tacho generator embedded in the housing supplies 2.7 V per 1,000 rpm to drive electronics that require analog speed feedback.

The motor develops a nominal shaft speed of 3,000 rpm, allowing drives to synchronize fast indexing cycles without overshoot. Electromagnetic conversion provides a torque constant of 1.10 Nm/A, so each ampere of phase current produces just over one newton-meter of torque at the rotor. Short-term acceleration is supported by a peak current limit of 16 A. The copper windings have an inductance of 76 mH and a resistance of 14.7 ohms; the controller must accommodate these values when regulating current and managing thermal dissipation. The electrical parameters allow current rise times and power-stage requirements to be calculated while keeping losses within the limits of the Class F insulation system.

A rotor inertia of 0.44 × 10⁻³ kg·m² balances rapid response with mechanical stability, helping to minimize load-side oscillations when the motor reverses direction. Back electromotive force is characterized by a voltage constant of 114 V/1,000 rpm, which the drive can use to estimate speed in sensorless or field-oriented control algorithms. At zero speed, the phases draw a standstill current of 2.7 A to hold torque against static loads. Lubricated precision bearings rated for 20,000 hours support extended service intervals under the axial and radial load constraints associated with the 14 mm shaft. The key and shaft arrangement provides positive torque transmission to compatible couplings, gears, or pulleys while maintaining accurate alignment with the driven assembly.