SD-B5.250.020.10.000 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat SD-B5.250.020.10.000 is a brushless servo motor from the SD Magnet Motors series. It features a flange size of 116 mm, a shaft measuring 19 by 40 mm, and uses a ferrite magnet type. The nominal speed is 2000 rpm and the torque at standstill is 25 Nm.
Internal Product Review
The SD-B5.250.020.10.000 is a brushless servo motor with basic equipment configured without keyway and without brake. Ferrite magnet construction and 25 Nm standstill torque support dependable servo performance in established motion-control applications.
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Product Description:
The SD-B5.250.020.10.000 is a brushless servo motor built by Bosch Rexroth Indramat within the SD Magnet Motors series. As a torque-controlled rotary actuator, this motor supplies closed-loop motion for positioning tables, packaging axes, and similar industrial automation tasks. Its brushless construction eliminates mechanical commutation, extends service intervals, and lets the connected drive regulate current and velocity tightly. It is suited to applications that require repeatable starts, stops, and controlled holding torque during indexed motion.
At standstill the rotor can exert 25 Nm of continuous torque, allowing the axis to hold static loads without auxiliary brakes. During operation it reaches an output speed of 2000 rpm, and the drive must accommodate the related electrical frequency and gearing ratio. The rectangular flange measures 116 mm across, matching common IEC interfaces for direct panel or gearhead mounting. A precision-ground shaft sized at Ø 19 × 40 mm provides the engagement surface for couplings, and its proportion ensures that rated torque is transmitted without exceeding shear limits. These dimensions simplify integration when retrofitting existing machine frames. They also support calculations for permissible radial forces on the shaft bearings encountered in belt-driven systems.
The magnetic circuit uses Ferrite permanent magnets, giving moderate flux density with stable temperature behavior for general-purpose servo loops. The motor is supplied as basic equipment and is configured without keyway and without brake; this reduces rotor inertia and suits applications where external holding or clamping devices are already present. A smooth shaft end is intended for coupling methods that do not require a keyed connection. This unit is supplied as the standard model in the series.
