Product Description:

The SD-B3.031.030-00.000 is a compact motor in the SD Magnet Motors series from Bosch Rexroth Indramat. It serves as the electromechanical drive element in automated pick-and-place stations, light conveyors, and small rotary tables, where accurate speed tracking and position repeatability are required. The unit couples permanent-magnet excitation with electronic commutation so the drive controller can generate precise phase currents while eliminating mechanical brush wear common to older DC designs. This arrangement supports smooth motion on axes that start, stop, and reverse frequently during normal machine cycles.

The motor’s rated rotational limit is 3000 rpm, allowing synchronization with standard 50/60 Hz converters while keeping resolver feedback within typical sampling ranges. Standstill output reaches 3.1 Nm, giving sufficient holding force for light indexing duties before motion starts. A square 116 mm mounting flange aligns with IEC size 90 gearheads and includes four threaded holes for direct panel attachment. Rotor excitation relies on Ferrite magnets, a cost-effective material that maintains flux density without rare-earth content. Power is delivered through a cylindrical shaft sized at ø 19x40 mm, with a 19 mm diameter for coupler selection and a 40 mm axial engagement length.

As a Brushless servo motor, the unit omits brushes and commutator hardware, so alignment features on the output shaft are important for slip-free torque transfer. The shaft is machined with a keyway that mates to a corresponding hub slot, and an inserted feather key helps keep the coupling element in position during bidirectional cycles. This shaft arrangement helps the motor transmit torque to couplings and hubs used on compact motion axes. The standard configuration is supplied without added sealing, feedback, or cooling changes beyond the features already described.