Product Description:

The MAC112B-0-GG-4-F/130-B-1/WI511LV is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Engineered as a motor for analog drives, it translates voltage commands from legacy or hybrid controllers into controlled rotary motion for positioning, feed, and spindle axes inside automated machinery. The brushless design pairs electromagnetic windings with closed-loop feedback so the drive maintains speed and torque without drift, and a built-in blocking brake secures the load whenever power is removed on vertically oriented systems.

During operation, heat leaves the stator through natural convection, so no auxiliary blower or liquid circuit is required. A standard brake rated at 45 Nm supplies static holding force, while the machining flange centers on a 130 mm pilot to maintain concentricity. Under rated excitation, the rotor reaches 3000 rpm, matching common spindle demands in medium-inertia applications. Three-phase power enters through a connector on side B, which positions the cable harness opposite the output shaft for easier dressing in tight enclosures. The feedback channel couples a tacho generator to an encoder interface that can accept absolute devices, and the housing depth corresponds to motor length code B for direct interchange with other MAC 112 variants.

The tacho generator delivers 3 V/1000 rpm, giving the analog controller a proportional velocity signal with low phase lag. Copper fill and laminate geometry associated with the GG winding code support elevated current density, and the mechanical frame is classified as 112 for consistent mounting across the series. Enhanced commutation and rotor balancing provide increased smooth run quality, limiting cogging during slow contour moves. Shaft position is reported by a single-turn incremental encoder installed with the series’ standard mounting hardware, while absolute devices can be used when multi-turn data is required.