SE-B4.170.050-00.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SE-B4.170.050-00.000 is a synchronous servo motor from the SE Synchronous Servo Motors series with a flange size of 142 mm and a nominal speed of 5000 rpm. It has a static torque of 14 Nm and a peak current rating of 145 Amps. The motor features a shaft size of 24 by 50 mm and a torque constant of 0.58 Nm per Amp.
Internal Product Review
The SE-B4.170.050-00.000 is a Bosch Rexroth Indramat synchronous servo motor with 5000 rpm nominal speed and 14 Nm static torque. A 0.58 Nm/A torque constant and 67 V/1000 rpm voltage constant support responsive servo tuning and strong speed regulation. Winding inductance of 4.5 mH and winding resistance of 0.37 Ohm make this motor an excellent choice for precise, high-performance motion control.
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Product Description:
The SE-B4.170.050-00.000 is a synchronous servo motor built by Bosch Rexroth Indramat and supplied within the SE Synchronous Servo Motors series. The unit converts controlled electrical power into rotary motion for precise positioning and velocity tasks in automated machinery, packaging lines, or handling modules. By delivering high dynamic response and repeatable speed control, the motor forms the electromechanical interface between the drive amplifier and the mechanical load in industrial automation.
The motor reaches a nominal rotational velocity of 5000 rpm, allowing fast cycle times in indexing or continuous-motion axes. At rated temperature, it can provide a static output torque of 14 Nm, establishing the maximum continuous load it can hold without movement. The electromagnetic coupling efficiency is described by a torque constant of 0.58 Nm/A; each ampere of phase current produces this level of torque. Transient response is guided by an electrical time constant of 12.3 ms, indicating how quickly the winding current builds when a voltage step is applied. For short bursts such as acceleration, the drive may command up to 145 A of phase current without exceeding the motor’s peak limits.
During continuous holding conditions, the current demanded by the motor is limited to 24 A at standstill, reducing drive heating when the shaft is locked. The back-EMF generated at operational speed follows a voltage constant of 67 V/1000 rpm, a parameter the inverter uses to determine field-oriented control limits. Mechanical dynamics are influenced by a rotor inertia of 4.08 ×10⁻³ kg·m², which balances high acceleration with stable load regulation. Integration into machine frames is simplified by a square flange measuring 142 mm on each side; the splined shaft is 24 mm in diameter and 50 mm long for direct coupling. Electrical behavior at low frequency is shaped by a 4.5 mH phase inductance working with a 0.37 Ω winding resistance, factors that moderate current ripple and power loss across the duty range addressed above.
