Product Description:

The MAC071C-0-US-2-C/095-B-2/S001 is a brushless AC servo motor produced by Bosch Rexroth Indramat and supplied within the MAC AC Servo Motors series. As a motor for analog drives, it converts drive commands from voltage-controlled amplifiers into precise rotary motion for positioning and velocity loops in automated machinery. This type of motor is well suited to feed axes, positioning tables, and transfer mechanisms that rely on stable closed-loop motion. Its brushless design avoids commutator wear and supports consistent response during repeated starts, stops, and speed changes. It is intended for installations that still use analog servo amplifiers but require accurate motion from the motor.

Its dimensional code shows a motor size of 071 with a length class of C, giving a compact frame that fits medium-duty axis modules without changing mounting patterns. The centering diameter of 95 mm aligns the flange to gearboxes and machine frames, helping maintain runout accuracy during installation. Under rated excitation, the rotor reaches a nominal speed of 2000 rpm, so the drive electronics can deliver constant torque across typical machine feed ranges. Heat generated in the stator is removed by natural convection, so the housing needs adequate airflow and should not be enclosed by insulation or blocked by nearby components.

The electrical design uses winding code US, which indicates the phase resistance and inductance expected by Indramat analog power stages. Position holding in vertical or loaded axes is managed by a blocking brake that supplies 6.5 Nm of static torque and releases when the drive energizes the brake circuit. This brake helps keep the shaft from moving after power removal when external loads act on the axis. Power conductors enter through a connector on side B, allowing cables to be routed away from moving machine elements. Speed feedback is provided by a standard tachogenerator with a calibration of 3 V/1000 rpm, and this signal supports closed-loop velocity regulation without an additional encoder. The tacho uses a standard-quality construction that matches the accuracy needs of conventional analog automation lines.