Product Description:

The SD-B5.250.020-11.000 is a servo motor produced by Bosch Rexroth Indramat for the SD Magnet Motors series. Within automated transfer lines, this motor supplies controlled torque to mechanical loads, translating drive amplifier commands into precise angular displacement for indexing, positioning, and synchronized transfer tasks. By using a permanent-magnet rotor and an electronically commutated stator, the unit eliminates brush wear and supports low-maintenance duty cycles required in packaging, printing, and material-handling equipment. Its construction follows IEC mounting conventions, so it can mount directly onto standard gearheads or machine frames.

In mechanical terms, the motor develops 25 Nm of continuous stall torque, giving machinery enough holding force for static clamping or vertical axes without additional brakes. Under rated excitation, it reaches a nominal speed of 2000 rpm, allowing moderate-speed positioning while keeping thermal losses within the winding limits. A flange face of 116 mm follows the square-flange pattern common to mid-frame drives, which simplifies alignment to planetary gearboxes or belt pulleys. The rotor uses Ferrite magnets, a material that provides stable magnetic flux over a wide temperature range. As a brushless servo motor, commutation is handled electronically, so the drive can command torque reversals without mechanical arcing.

The output shaft is ground to Ø 19 × 40 mm, providing enough surface for keyed couplings while preserving stiffness against radial loads. Native feedback signals remain compatible with legacy Indramat drives, which helps the motor integrate with established control platforms. The electrical design supports consistent interaction between the motor and its matching drive amplifier during closed-loop operation and repeated start-stop cycles. The shaft geometry and mounting format make the unit suitable for direct coupling in compact motion systems and fixed machine assemblies.