SD-B5.250.030.10.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SD-B5.250.030.10.000 is a brushless servo motor from the SD Magnet Motors series. It has a nominal speed of 3000 rpm and provides a torque at standstill of 25 Nm. This motor features a 116 mm flange size, is made with ferrite magnets, and is supplied without a keyway or brake.
Internal Product Review
The SD-B5.250.030.10.000 is a brushless servo motor that uses ferrite magnets for dependable industrial motion performance. Nominal speed reaches 3000 rpm, while 25 Nm standstill torque supports strong dynamic response and stable holding capability. The basic equipment configuration is a clean fit for streamlined servo axes, making the motor an excellent choice for precise motion control.
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Product Description:
The SD-B5.250.030.10.000 is a brushless servo motor in the SD Magnet Motors series manufactured by Bosch Rexroth Indramat. The design integrates permanent magnets on the rotor and is intended for closed-loop position and velocity control in automated production lines, packaging machines, and assembly stations. By combining a compact housing with high torque density, it serves as the rotary actuator that converts electrical energy from the drive into controlled mechanical motion for axes that require accurate repeatability. In this role, the motor supports synchronized indexing, feed motions, and other repeatable servo tasks where precise speed regulation and position response are required.
Mounting compatibility is supported by a flange outer dimension of 116 mm, allowing the motor to align with IEC and proprietary gearheads without additional adapter plates. At its nominal operating point, the rotor runs at 3000 rpm, giving a balance between speed range and servo stiffness for medium-inertia loads. The solid shaft measures 19×40 mm, providing adequate diameter to transmit continuous torque while maintaining concentricity with standard couplings. This shaft size suits direct-coupling arrangements where compact dimensions and stable alignment are important. Rated torque at standstill reaches 25 Nm, which is the maximum continuous twisting force available when the shaft is locked. Rotor excitation is provided by Ferrite magnets that deliver stable magnetic flux without the rare-earth content associated with NdFeB.
The motor has a smooth shaft without a keyway, so couplings must rely on friction fits rather than keyed hubs. This layout is suited to applications where a keyed shaft is not required and compact coupling hardware is preferred. It is supplied without a brake, so any power-off holding must be provided externally. The unit uses electronic commutation, which eliminates carbon brushes, reduces particulate contamination, and helps maintain continuous torque output across varying speeds.
