SE-B3.055.030-10.101 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B3.055.030-10.101 is a servo motor from the SE Synchronous Servo Motors series. It provides a nominal speed of 3000 rpm, maximum torque of 16.2 Nm, and peak current of 40 Amps. The motor features a shaft measuring 19 by 40 mm, a static torque of 6.8 Nm, and a rotor inertia of 1.21 x10^-3 kgm2.
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Product Description:
The SE-B3.055.030-10.101 synchronous servo motor is produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. In automated machinery, this motor functions as a rotary actuator that delivers controlled torque and speed for positioning, indexing, and continuous-motion tasks. It interfaces with digital drives to provide precise feedback-based control of axis movement.
The motor generates a static holding torque of 6.8 Nm, allowing it to maintain the load position at rest. With the SM 10/20 coupling, the application-specific mechanical option provides 16.2 Nm of torque. During motion, the rotor can reach a nominal velocity of 3000 rpm and accept transient surges of up to 40 A of peak current, while continuous operation at standstill draws 6.7 A. A torque constant of 1.02 Nm/A links drive current to mechanical output, so control algorithms can predict the load response. Current rises to its commanded value within an electrical time constant of 8.4 ms, supporting rapid closed-loop corrections. The smooth Ø19 × 40 mm shaft is supplied without a keyway, and the oil-tight end plate prevents lubricant from migrating into attached gear stages.
Dynamic behavior is influenced by a rotor inertia of 1.21 × 10⁻³ kg·m², which balances quick acceleration with stable speed regulation. Thermal saturation is delayed by a thermal time constant of 29 min, giving the stator mass time to absorb losses during repetitive duty cycles. Magnetic energy storage is supported by a winding inductance of 30 mH, while copper losses are affected by a winding resistance of 3.53 Ω. The motor produces a back-EMF gradient of 113 V per 1000 rpm, which the drive uses for voltage-vector calculations. A Ø105.4 h9 centering collar supports accurate alignment during installation and helps position the motor consistently against the mounting surface.
