Product Description:

The SD-B3.031.030.05.000 is a brushless servo motor manufactured by Bosch Rexroth Indramat and positioned within the SD Magnet Motors series. In automated machinery, it acts as the electromechanical interface between the drive amplifier and the mechanical load, converting regulated current into precisely controlled shaft rotation for indexing tables, pick-and-place modules, or coordinated multi-axis systems. Its operating role centers on accurate speed and position control, making it suitable for applications that need repeatable motion and stable response under changing loads. The motor is intended for controlled motion where precise shaft response is more important than simple constant-speed rotation.

The motor belongs to the SD Magnet Motors line, which uses common mounting geometry and winding classes across multiple frame sizes. A square flange with dimensions of 116 mm on each side creates a rigid interface to gearboxes or machine plates and supports accurate alignment during installation. Rotor excitation is produced by Ferrite magnets; this material provides stable magnetic flux without rare-earth content and maintains consistent field strength across the stated temperature range. Under rated conditions, the rotor reaches a nominal speed of 3000 rpm, allowing the same mechanical package to support both fast positioning tasks and constant-speed duties such as metering pumps.

Mechanical coupling is handled by a cylindrical shaft sized at ø 19×40 mm, a dimension that supports standard keyway hubs and helps limit overhung load on the front bearing. At zero speed, the motor can generate a stall torque of 3.1 Nm, giving the control loop enough reserve to hold static loads against friction or modest external forces. The design remains a brushless servo motor, so there are no commutation brushes to wear during normal operation. This arrangement helps maintain smooth response during repeated starts, stops, and low-speed positioning moves.