Product Description:

The SD-B3.031.030-05.000 is a brushless servo motor created by Bosch Rexroth Indramat and supplied within the SD Magnet Motors series. This rotary unit converts electrical energy into controlled mechanical rotation for positioning and velocity tasks in automated machinery on assembly, packaging, and material-handling lines. It is intended for direct mounting to small and medium index tables or belt drives where consistent torque is necessary. Its operating range suits equipment that needs repeatable starts and stops throughout normal production cycles.

Its flange mounts to machine frames with a 116 mm bolt circle diameter, which provides a rigid mechanical interface. The rotor uses ferrite permanent magnets, and the motor relies on a compact stator design to keep the package suitable for smaller axes. Under rated conditions, the motor reaches 3000 rpm, a speed that suits general motion profiles on mid-range servo drives. The output shaft measures 19 × 40 mm, which suits couplings sized for a 19 mm shaft with a 40 mm extension. At standstill, it can hold 3.1 Nm, allowing the axis to resist external loads during dwell periods without requiring an active brake.

As a brushless servo motor, the unit depends on commutation signals from the drive controller to manage phase sequencing instead of carbon brushes. This arrangement keeps phase switching under electronic control during acceleration, deceleration, and holding. The absence of brushes also avoids brush dust and eliminates the mechanical contact associated with brushed commutation. Within the SD Magnet Motors series, the design is aimed at compact axes where stable holding capability is more important than high peak output. The motor is therefore well suited for positioning tasks that value predictable low-speed control and a straightforward mechanical interface.