Product Description:

The MAC071C-0-NS-4-C/095-B-1 is a brushless AC servo motor produced by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. It is intended for analog drive systems, where it converts command signals into controlled torque and speed for automated tooling, handling modules, and material-flow equipment. The unit integrates a tachogenerator or encoder channel so the drive can close velocity or position loops without external transducers, and its frame dimensions suit medium-power machine axes that require consistent dynamic performance. Because the motor is brushless, it avoids commutator wear during normal servo operation and supports repeatable response over long duty cycles.

A blocking brake is fitted as standard, delivering 3 Nm of holding torque to secure vertical loads when power is removed. The motor aligns to gearboxes or machine frames through a 95 mm centering diameter. Heat is removed by natural convection, eliminating the need for forced air or liquid circuits. During operation, the rotor reaches a nominal speed of 3000 rpm. Power conductors attach through a connector on side B, so cabling can be routed away from moving members and kept clear of the feedback line.

Electrical matching is handled by the winding and feedback set. Winding code NS indicates the copper pattern and impedance pairing used with compatible analog amplifiers, while motor size 071 identifies the magnetic cross-section for this frame. The motor uses frame length C, providing an armature stack long enough to achieve rated torque without external cooling. For velocity feedback, the unit supplies 3 V/1000 rpm from its tachogenerator, giving the drive a direct speed signal for closed-loop regulation. This feedback arrangement supports stable speed correction during positioning and steady-state operation.