SD-B4.140.0430-01.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SD-B4.140.0430-01.000 is a brushless servo motor from the SD Magnet Motors series with a flange size of 142 mm and ferrite magnets. It offers a nominal speed of 3000 rpm, peak current of 45.5 A, and has IP54 protection. The motor features a torque at standstill of 14.0 Nm, shaft dimensions of 24 by 50 mm, and a thermal time constant of 130 minutes.
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Product Description:
The SD-B4.140.0430-01.000 belongs to the SD Magnet Motors series produced by Bosch Rexroth Indramat. It is a brushless servo motor used in industrial automation to deliver controlled rotary motion for positioning and speed-regulated axes in packaging machines, handling systems, and similar equipment. The motor combines a compact flange with a ferrite-based rotor to provide consistent torque while meeting the protection requirements of automation cabinets.
The motor mounts on a 142 mm square flange, and its shaft measures 24 mm in diameter and 50 mm in length for direct coupling to gearboxes or driven loads. Rated operation reaches 3000 rpm, while a standstill torque of 14.0 Nm supports static loads without external brakes. Acceleration reserves are supplied by a peak current of 45.5 A, whereas the normal standstill current is 13.0 A. The ferrite magnets, together with a rotor inertia of 11.56 × 10⁻³ kg·m², yield a mechanical time constant of 6.9 ms, so speed changes are completed quickly. An electrical time constant of 9.24 ms describes current rise in the 0.92 Ω windings. The housing meets the IP54 protection standard, allowing installation in areas with limited dust and water spray. Feedback is supplied by a tacho generator that develops 2.7 V per 1000 rpm, and the minimum terminating resistance for that signal path is 20 kΩ.
The electromagnetic coupling is characterized by a torque constant of 1.08 Nm/A and a winding inductance of 8.48 mH, giving the drive predictable current-to-torque conversion and stable current regulation. Back EMF rises linearly with speed at 150 V/1000 rpm, so the inverter must handle that voltage when the axis is backdriven. Thermal behavior is described by a time constant of 130 min, which allows lengthy duty cycles before the motor reaches equilibrium temperature.
Frequently Asked Questions about SD-B4.140.0430-01.000:
Q: What is the nominal speed of the SD-B4.140.0430-01.000 servo motor?
A: The SD-B4.140.0430-01.000 servo motor has a nominal speed of 3000 rpm for continuous operation.
Q: What type of magnets does the SD-B4.140.0430-01.000 use?
A: This motor uses ferrite magnets as its magnet type.
Q: What protection standard does the SD-B4.140.0430-01.000 provide?
A: The SD-B4.140.0430-01.000 offers IP54 protection standard against dust and water spray.
Q: What are the shaft dimensions for the SD-B4.140.0430-01.000?
A: The shaft of this model measures 24 mm in diameter and 50 mm in length.
Q: What is the torque at standstill for the SD-B4.140.0430-01.000?
A: This servo motor produces a standstill torque of 14.0 Nm.
