Product Description:

The SD-B4.070.030-05.000 is a brushless servo motor manufactured by Bosch Rexroth Indramat under the SD Magnet Motors series. In automated production cells, it converts drive current from a matching amplifier into smooth rotary motion for positioning tables, feeders, or indexing heads. The rotor uses permanent magnets, allowing repeatable torque without mechanical commutation. This layout supports compact installation where stable speed control, repeatable starts and stops, and accurate positioning are required across short machine cycles.

The motor mounts to machinery with a flange size of 142 mm, which fixes the bolt pattern for accurate alignment at the machine interface. Its rotor uses ferrite magnets, a material choice suited to medium-duty cycles, and a nominal speed of 3000 rpm matches common servo inverter operating ranges with minimal overspeed margin. Power is transmitted through a shaft with a diameter of 24 mm and a length of 50 mm, allowing standard keyless clamping hubs to transfer torque to couplings or gear stages. This shaft format supports direct coupling and accommodates common hub styles used on compact servo axes. The stator winding provides a holding torque of 7.0 Nm at standstill, so the axis can resist static loads when the feedback loop commands zero motion.

Because it is a brushless servo motor, the unit has no contacting brushes, which reduces wear debris and lowers routine maintenance needs. The absence of contacting brushes also helps keep surrounding components cleaner during continuous operation. The motor follows the standard product configuration without added seals, brakes, or sensors, keeping the layout straightforward for general servo applications. It is part of the SD Magnet Motors line, which uses consistent encoder protocols, connector pinouts, thermal classes, and insulation schemes across related models.