SE-B4.130.030-10.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B4.130.030-10.000 is part of the SE Synchronous Servo Motors series and has a nominal speed of 3000 rpm with a static torque of 13 Nm. This servo motor delivers a maximum torque of 27.6 Nm, weighs 19 kg, and features a peak current of 111 A.
Internal Product Review
The SE-B4.130.030-10.000 is a Bosch Rexroth Indramat synchronous servo motor rated for 3000 rpm nominal speed and 13 Nm static torque. A 27.6 Nm maximum torque paired with a 0.91 Nm/A torque constant supports strong dynamic response and efficient servo tuning. Low 58 dB(A) noise and a 13.6 ms mechanical time constant make the unit a highly capable choice for demanding motion applications.
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Product Description:
The SE-B4.130.030-10.000 synchronous servo motor is produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. It is intended for closed-loop motion axes where consistent speed, quick acceleration, and position fidelity are required for machining centers, pick-and-place units, and packaging equipment. Coupled to a compatible drive controller, the motor converts electrical power into controlled mechanical rotation so machine control software can execute precise cycles without relying on mechanical speed reducers.
The rotor reaches a nominal velocity of 3000 rpm, providing direct-drive capability for medium-speed spindles. When high load transients occur, the electromagnetic system delivers up to 27.6 Nm of peak torque, while a standstill current of 19 A maintains static holding force without thermal overload. Each ampere of phase current generates approximately 0.91 Nm/A, and the induced back EMF rises at 104 V/1000 rpm. These constants allow the drive to calculate appropriate voltage and current limits. Dynamic behavior is characterized by a 3.5 ms electrical time constant and a 13.6 ms mechanical time constant, so torque builds quickly and speed settles within milliseconds. Static torque is 13 Nm for steady loads, and noise emission stays below 58 dB(A), reducing the need for acoustic shielding.
The three-phase stator winding has an inductance of 9.3 mH and a resistance of 0.68 Ω, which influence current ripple and thermal loss in the power stage. Short bursts can be supplied at 111 A to use the motor’s overload margin without demagnetizing the magnets. With a rotor inertia of 4.08 × 10-3 kg·m², the motor supports rapid indexing moves without excessive coupling stress. Its mass remains manageable at 19.0 kg. The housing is 315 mm long and withstands shock loads of up to 6 g during transport or crash stops.
