Product Description:

The MAC112D-2-FD-1-B/130-A-1/J1250/S05 is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Classified as a motor for analog drives, it converts electrical input into regulated mechanical motion for positioning tasks on packaging lines, machine tools, and transfer axes. The model combines the 112 frame size and D length to supply moderate continuous torque while remaining compatible with legacy drive controllers across the automation platform.

An internal blocking brake rated at 45 Nm holds the shaft when the system is de-energized, securing loads on vertical or intermittent-duty axes. Thermal management relies on axial surface cooling; airflow over the housing removes heat generated by copper losses without requiring a liquid circuit. The blower that drives this airflow operates from an auxiliary supply of AC 115 V, so a separate low-power feed must be provided in the cabinet. Closed-loop position control is achieved through incremental encoder feedback, allowing the analog drive to derive velocity and displacement signals from pulse counts. Under rated conditions, the rotor reaches 2000 rpm, matching common spindle and conveyor speeds. The 112 frame diameter and D stack length set the magnetic loading envelope for the motor’s continuous torque and inertia characteristics, while the brake’s standard designation indicates that it is factory installed rather than optional.

A centering register of 130 mm aligns the flange to gearboxes or mounting plates, maintaining concentricity during assembly. For speed monitoring by external controllers, a built-in tacho generator provides 3 V/1000 rpm, producing a proportional direct-current signal suitable for analog velocity loops. Power conductors enter through a connector on side A, which dictates cable routing inside the machine frame and separates power from feedback wiring on the opposite end. The electromagnetic characteristics are identified by winding code FD, informing drive parameter sets such as current limits and voltage tables.