SE-B4.130.030-04.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B4.130.030-04.000 is part of the SE Synchronous Servo Motors series and has a static torque of 13 Nm with a nominal speed of 3000 rpm. It operates with a peak current of 84 Amps and features a brake holding torque of 27.6 Nm at a supply voltage of 24 VDC. This motor has a mass of 18 kg with brake included and a shaft diameter of 24 mm.
Internal Product Review
The SE-B4.130.030-04.000 is a Bosch Rexroth Indramat synchronous servo motor engineered for precise industrial motion control. Nominal speed of 3000 rpm combines with 13 Nm static torque to support responsive and stable axis performance. A 24 VDC brake with 27.6 Nm holding torque stands out as a valuable feature for secure positioning.
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Product Description:
The SE-B4.130.030-04.000 belongs to the SE Synchronous Servo Motors series produced by Bosch Rexroth Indramat. It is a rotary actuator intended for industrial automation tasks where closed-loop controllers demand fast, accurate changes in shaft position or velocity. When connected to a compatible drive, the motor converts regulated three-phase electrical power into mechanical output that moves tooling, indexing tables, or conveyor sections within packaging, machining, or material-handling installations.
The motor reaches a nominal speed of 3000 rpm, indicating the continuous operating velocity that can be sustained under rated load and cooling. At standstill, it delivers a static torque of 13 Nm, enough to hold or start medium-inertia loads without external gearing. Dynamic events are supported by a peak phase current of 84 A that the drive may supply for short intervals, enabling rapid acceleration or disturbance rejection. The electromagnetic design converts each ampere of stator current into torque with a torque constant of 0.80 Nm/A, which is useful when sizing inverters or monitoring current-based torque control loops. Stator reactance is limited by a winding inductance of 0.96 mH, allowing high-bandwidth current regulation while keeping switching losses moderate.
A permanent-magnet holding brake supplies 27.6 Nm when engaged, and it activates within 55 ms after a 24 VDC signal is applied, supporting vertical axes that must lock quickly during power-down. The combined rotor and tachogenerator inertia is 3.08 × 10⁻³ kg·m², providing a balance between quick response and mechanical stability for midrange load couplings. Copper losses during continuous operation are affected by a phase resistance of 9.7 Ω, which helps with predicting heat rise during sizing calculations. Additional parameters include a 15 A standstill current, a 99 V/1000 rpm voltage constant, a 24 mm shaft, an 18 kg mass, and a 330 mm length, allowing the motor to be integrated into compatible mechanical frames and drive systems.
