Product Description:

The SD-B3.031.030-15.000 is a servo motor produced by Bosch Rexroth Indramat within the SD Magnet Motors series. This compact rotary actuator converts DC-link energy from a compatible Indramat drive into controlled mechanical motion for pick-and-place heads, feeders, and small indexing tables used in automated assembly and packaging cells. Electronic commutation replaces mechanical brushes, so the motor maintains consistent torque output during repeated starts and stops. Its compact format also helps it fit machine layouts where space around the drive axis is limited.

The mechanical interface uses a 116 mm square flange that matches DIN mounting patterns, allowing the housing to bolt directly to gear stages or adapter plates. The rotor employs Ferrite permanent magnets, a material choice that provides stable magnetic flux for steady motor response. Rated speed reaches 3000 rpm, so the drive can follow rapid command sequences without entering field weakening. The motor shaft is machined to a diameter of 19 mm, which provides suitable torsional strength for medium-duty couplings, and a key recess accommodates standard transmission elements. When energized in a locked-rotor state, the motor develops 3.1 Nm of torque at standstill, which is useful when evaluating holding-load requirements.

In addition to the 19 mm diameter, the shaft extends 40 mm beyond the flange face, providing enough engagement length for rigid couplings without overstressing the key. The motor is supplied in the standard version, so no custom winding, sealing, or feedback changes are applied at the factory. Because the design is brushless, electrical commutation is handled by the drive controller, which eliminates brush wear and reduces particle generation during continuous operation. The rotor’s permanent magnets are press-fitted on a solid hub, creating a short thermal path to the frame so heat can move away from the rotating assembly during high-cycle use.