Product Description:

The MAC112A-0-ZD-3-C/130-A-0 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Classified as a motor for analog drives, it converts drive-controller current into controlled torque that positions axes and feed mechanisms in automated machinery. The motor mounts directly to gearboxes or machine frames and is sized for medium continuous duty in multi-axis production cells where reliable speed following and stable operation are required.

A centering pilot of 130 mm aligns the housing on the machine plate and helps ensure concentric load transfer. Heat is removed by natural convection, so no external blower or liquid circuit is needed, which simplifies installation. Under rated excitation, the rotor reaches 1500 rpm, and this nominal speed matches analog controllers that regulate velocity through tacho feedback. The winding code ZD identifies the stator turns and resistance so current demand stays within the companion drive's output range. A built-in tacho generator supplies 3 V/1000 rpm of back EMF, giving the controller a linear voltage signal for closed-loop speed regulation without a separate encoder interface.

The motor size is 112, and the stack length index is A, which helps indicate the torque and inertia range for load matching. Power conductors leave the stator through a connector on side A, keeping cable routing short when the drive cabinet is located on that side of the machine. The shaft includes a second end for external transducers, and the feedback arrangement combines tacho feedback with this auxiliary shaft for monitoring. Tacho quality is standard and is suitable for the ±2% speed accuracy typical of analog loops. The motor has no blocking brake, so vertical axes must rely on external locking devices when power is removed.