SE-B4.210.030-01.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B4.210.030-01.000 is part of the SE Synchronous Servo Motors series and features a 142 mm flange. It has a maximum torque of 57.4 Nm and a nominal speed of 3000 rpm. This servo motor offers a peak current of 158 A and a static torque of 21 Nm.
Internal Product Review
The SE-B4.210.030-01.000 is a synchronous servo motor with a 3000 rpm nominal speed and 57.4 Nm maximum torque. A 0.92 Nm/A torque constant and 158 A peak current support strong dynamic response in demanding motion applications. A 32 ms ramp-up time makes the motor an excellent choice for precise, high-performance servo control.
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Product Description:
The SE-B4.210.030-01.000 synchronous servo motor is produced by Bosch Rexroth Indramat within the SE Synchronous Servo Motors series. As a rotary actuator, it converts drive current into controlled torque and speed for positioning tasks in packaging lines, machine tools, and handling modules. The motor supports direct coupling to planetary gearboxes or belt drives, providing closed-loop motion when paired with an Indramat drive controller.
At standstill, the motor can deliver a continuous static torque of 21 Nm while maintaining a standstill current of 23 A. Under rated excitation, it reaches a nominal speed of 3000 rpm, and transient events are supported by a peak current capability of 158 A. During acceleration, a maximum torque of 57.4 Nm is available, allowing rapid load changes within a ramp-up time of 32 ms. The electromagnetic coupling has a torque constant of 0.92 Nm/A, so each ampere contributes nearly one newton-meter of torque under applicable operating conditions. Stator parameters include a winding inductance of 6.2 mH and a winding resistance of 0.51 Ω. These values influence current ripple and the drive voltage needed to regulate motor current.
The motor reacts quickly to control signals. An electrical time constant of 11.9 ms governs current rise, while a mechanical time constant of 3.1 ms indicates how quickly the rotor accelerates once torque is produced. Heat is absorbed and dissipated gradually because the motor has a thermal time constant of 35 min, making the unit suitable for cyclic duty. Feedback is supported by a tachogenerator that provides 2.7 V per 1000 rpm with a tolerance of ±5% for velocity monitoring. A voltage constant of 102 V/1000 rpm provides the back electromotive force value needed for drive sizing. The 142 mm flange allows the motor to attach to compatible machine frames without adapters, while the motor’s inductive properties support stable current control throughout its operating range.
