Product Description:

The MAC071C-0-NS-4-C/095-B-0/WI520LV/S001 is an AC servo motor produced by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. Designed for analog drive systems, the unit converts voltage-based commands into precisely regulated shaft motion, supporting accurate positioning and velocity control in automated assembly, packaging, and material-handling equipment. Its integrated feedback devices let the connected drive compare commanded motion with actual shaft behavior during operation. That closed-loop arrangement helps maintain repeatable response when load conditions change.

The motor has a size of 071 and a C-length housing, which set the stack height and power density for this frame. The stator carries winding code NS, matching resistance and inductance to analog amplifiers for stable current regulation. Under rated excitation, the rotor reaches 3000 rpm, providing medium-speed capability for indexing axes. A centering diameter of 95 mm seats the housing to gearboxes or flanges for low runout. Velocity feedback comes from a tachogenerator that outputs 3 V/1000 rpm, while an incremental encoder with standard mounting supplies position pulses so the drive can monitor both speed and position during normal operation.

Heat is removed by natural convection, eliminating the need for forced-air or liquid cooling devices. Torque is transferred through a shaft with a DIN 6885 keyway, allowing positive coupling engagement while the pilot maintains concentricity. Power conductors terminate through a connector on side B, which helps simplify cable routing and keeps the connection orientation consistent with the housing layout. Because the motor is supplied without a blocking brake, vertical or overhung loads must be secured by an external brake or by drive-held current during power-off states.