Product Description:

The SE-B4.090.030-14.000 is a synchronous servo motor manufactured by Bosch Rexroth Indramat for the SE Synchronous Servo Motors series. It serves as a rotary actuator in automation cells, receiving command signals from a drive controller and delivering precise shaft motion for pick-and-place units, indexing tables, and cutter heads. An internal spring-applied brake is integrated for position holding when power is removed, allowing the motor to secure vertical or safety-critical axes without external clamps.

Rated for a nominal velocity of 3000 rpm, the motor can sustain continuous operation at production speeds while maintaining tight velocity regulation. During acceleration, it can deliver up to 17.3 Nm for short load peaks. A standstill current of 10 A is required to produce the specified static torque of 9.0 Nm, and this value is important for correct drive sizing. The stator windings present an inductance of 16.1 mH, which helps smooth rapid current changes and reduce torque ripple. With a torque constant of 0.87 Nm/A, each ampere delivered by the inverter produces predictable torque output. A winding resistance of 1.92 Ω contributes to copper losses that must be dissipated by the motor housing.

Dynamic bursts up to 62 A are tolerated for rapid indexing moves before thermal limits are approached. The thermal time constant of 28 min means winding temperature rises gradually, permitting intermittent overloads within that period. A back-EMF value of 97 V/1000 rpm shows the voltage the drive must provide at speed. The brake supplies a holding torque of 18 Nm and is released by 24 V DC ±10% at 1.0 A, which matches common machine control circuits. Mechanical properties include a rotor inertia of 2.18 × 10⁻³ kg·m² for responsive starts, a total mass of 15 kg, and an overall length of 299 mm for compact axis layouts.