Product Description:

The SD-B3.031.030-01.000 is a motor designed by Bosch Rexroth Indramat for the SD Magnet Motors series. It serves as a compact rotary actuator for precision positioning in automated packaging lines, pick-and-place modules, and light machining centers. The unit converts controlled electrical input into accurate mechanical rotation for axes that require repeatable speed and position control. Wear at the commutation stage is reduced, which helps support frequent start-stop cycles in production equipment. This makes it suitable for machines that perform short indexing moves as well as steady rotary motion during processing.

The motor uses a 116 mm square flange that provides a fixed bolt circle and pilot diameter for standard gearheads and timing belt pulleys. Inside the steel housing, ferrite magnets establish a stable magnetic field for servo operation. The rotor can operate at 3000 rpm for constant-speed processes, and at zero or very low speed it can deliver 3.1 Nm of torque. That low-speed torque supports load holding and improves response during startup and indexing. Power is transmitted through a 19 × 40 mm keyed shaft that suits common couplings and helps manage torsional load during repeated acceleration and deceleration.

As a brushless servo motor, the unit responds well to closed-loop drive control during indexing and contouring moves. Its electronic commutation supports smooth low-speed interpolation and consistent motion without brush wear. When paired with a matching amplifier, the motor provides repeatable positioning on Cartesian and articulated axes used in repetitive production tasks. Current commands from the drive are translated into predictable torque output, which helps maintain stable motion through low and medium speed ranges. The compact format also helps the motor fit into equipment layouts where available installation space is limited.