Product Description:

The MAC071B-0-FS-2-C/095-B-0 AC servo motor is produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Classified as a motor for analog drives, it converts drive current into controlled mechanical output for positioning, indexing, or speed-regulated conveyor sections in industrial automation lines. Its layout suits legacy motion systems that rely on tacho-based regulation and straightforward motor integration, making it useful in retrofit equipment as well as long-running production machinery. That arrangement helps preserve compatibility in installations built around established motion hardware.

The motor uses frame size 071, which sets the square flange dimensions used for mounting to gearboxes or direct-drive assemblies. A centering diameter of 95 mm guides the motor into precision recesses so shaft runout remains low. The stack length index B extends the magnetic path, increasing continuous torque without changing the frame cross-section. Heat generated in the stator is removed by natural convection, so the motor should be installed where ambient air can circulate freely. Under rated excitation, the rotor reaches 2000 rpm, a nominal speed that fits many indexing and conveyor applications. The motor does not include a blocking brake, so vertical or overhauling loads must be held by external clamping or drive current during power loss.

For velocity feedback, the unit is equipped with tacho feedback, producing a proportional signal of 3 V/1000 rpm that paired drive amplifiers use for closed-loop regulation. The coil set carries the winding code FS, indicating impedance and back-EMF values suited to 60 V class amplifiers. Power conductors enter through a connector on side B, which can simplify cable routing when the motor is installed close to machine frames. Tacho quality is listed as standard, which suits speed loops that do not require incremental encoders. This feedback arrangement supports stable speed correction during changing load conditions and steady-state operation.