Product Description:

The MAC112D-0-FD-2-C/130-A-1 is an AC servo motor produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Designed as a motor for analog drives, it accepts proportional voltage commands from older drive amplifiers and delivers closed-loop shaft rotation for machine tools, material-handling axes, and other positioning systems. Its integrated tacho generator returns real-time speed data to the drive, enabling continuous velocity correction without requiring a digital encoder. This arrangement helps the motor fit retrofit systems that continue to use analog motion hardware.

The motor includes a blocking brake rated at 45 Nm, allowing the shaft to hold its position when the drive is disabled during tooling changes or emergency stops. A centering diameter of 130 mm aligns the stator housing with standard mechanical flanges, reducing concentricity errors after maintenance. Heat is removed by natural convection, so no external blower or liquid circuit is needed inside sealed cabinets. During operation, it reaches a nominal speed of 2000 min⁻¹, matching common spindle and feed requirements on legacy machining centers. Power and feedback cabling exit through a connector on side A, which keeps the wiring path short when the motor is mounted with that face toward the cable tray.

The tacho generator outputs 3 V/1000 min⁻¹, giving the analog controller a linear speed signal that scales predictably across the working range. The FD winding code indicates the copper fill and turns count, which set the voltage constant and current demand for drives in the same winding family. The frame is classified as motor size 112, offering a balance between torque density and overall mass for medium-duty axes. The housing depth identified as motor length D provides extra active iron, which increases continuous torque without altering the mounting pitch. This layout is useful where available installation space must be preserved while higher sustained output is needed.