Product Description:

The MAC112B-2-LD-4-C/130-A-0/WI520LV/S005 is an AC servo motor built by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is supplied as a motor for analog drives where continuous torque regulation and precise speed following are required in automated production equipment. Integrated position feedback devices allow the drive controller to close velocity and position loops, so the unit converts commanded current into rotary motion for axes, gantries, or spindle groups in machine tools, transfer lines, and material-handling assemblies. Its mechanical interface matches standardized flange dimensions used across the series.

Heat generated by the stator windings is removed through axial surface cooling. An external blower rated at AC 115 V directs airflow along the housing ribs to maintain stable winding temperatures during continuous duty. Accurate mounting is aided by a 130 mm centering diameter that aligns the motor flange with adjoining machine frames and helps keep radial runout low. Mechanical torque is transmitted through a DIN 6885 keyway cut into the shaft, ensuring positive engagement with couplings or pulleys. Under nominal excitation, the rotor reaches 2000 rpm, a speed chosen for medium-inertia loads driven by analog velocity loops. Electromagnetic characteristics follow winding code LD, which indicates the phase resistance and inductance used by the connected drive.

Position feedback is delivered by a tacho generator that produces 3 V/1000 rpm and by an incremental encoder mounted in the standard interface used for the series. This dual feedback arrangement provides speed and position signals for compatible control systems. The motor frame is Size 112 with length code B, providing a balanced ratio of torque to overall mass. Power leads exit through a connector on side A, and the motor has no blocking brake, which helps reduce rotor inertia during rapid start-stop cycles.