Product Description:

The SE-B4.090.030-10.000 is a synchronous servo motor produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. It is built for closed-loop industrial positioning tasks where accurate torque production and rapid speed changes are required. The flange measures 142 mm, the body length is 252 mm, and the plain shaft is Ø24 × 50 mm without a keyway, allowing direct coupling when backlash must be minimized. This layout suits axes that need repeatable motion in packaging equipment, indexing systems, and other automated machinery.

This motor reaches a nominal speed of 3000 rpm, delivering a static torque of 9.0 Nm at the shaft. A torque constant of 0.87 Nm/A links commanded current to output torque, so drive electronics can predict load response precisely. During acceleration, the windings can accept a peak current of 62 A, while 10 A is sufficient at standstill. The rotor’s moment of inertia is 2.18 × 10⁻³ kg·m², which balances quick start-stop behavior with smooth rotation under moderate load moments. A voltage constant of 97 V per 1000 rpm sets the back-EMF level and affects DC bus sizing. These characteristics make the motor suitable for applications that need responsive motion without unstable speed changes.

An electrical time constant of 8.2 ms and a mechanical time constant of 5.1 ms give controllers tight bandwidth for current and speed loops. The thermal time constant of 28 min shows that the windings heat gradually, which supports intermittent overload without rapid derating. A winding inductance of 16.1 mH filters high-frequency components and reduces stress on the inverter output stage. The winding resistance is 1.92 Ω, which affects heat buildup and current ripple during operation. This response profile helps the motor track short motion commands with consistent repeatability in precision automation tasks.