Product Description:

The MAC112D-0-HD-4-C/130-A-0/WI520/S051 is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Designed for analog drive controllers, the motor delivers controlled rotary power for indexing tables, traversing axes, and other closed-loop automation duties where accurate torque and speed are required. Integrated feedback helps the paired drive monitor motion response closely, supporting stable speed regulation and repeatable positioning during cycle-to-cycle operation. This makes the motor suitable for machinery that requires steady low-speed control as well as repeatable acceleration.

The unit’s centering pilot measures 130 mm, providing a precise locating fit that keeps the flange concentric with coupled mechanics. Heat is removed through natural convection, so no separate blower or liquid circuit is needed to maintain thermal limits. A nominal shaft speed of 1500 min⁻¹ is the reference operating point used when sizing gearing or transmission ratios. The winding code HD corresponds to resistance and inductance values that support predictable current draw on analog amplifiers. Tachogenerator output is rated at 3 V/1000 min⁻¹; this voltage is proportional to speed and feeds velocity loops that do not use digital scaling. The motor belongs to frame size 112 and is built without a blocking brake, which reduces inertial loading on the axis.

Power enters through a connector mounted on side A, allowing cable routing to follow the machine’s fixed harness paths. Position data is supplied by an incremental encoder with standard mounting, enabling fine resolution for point-to-point moves. The tacho section has standard quality grading, providing consistent speed signals without additional calibration. The assembly uses motor length D, which gives the unit a longer housing depth than shorter versions in the same frame. This added length supports the motor’s overall electromagnetic and thermal layout without changing its basic mounting concept.