Product Description:

The MAC071B-0-PS-2-C/095-A-0 is a servo motor built by Bosch Rexroth Indramat for use with analog drive electronics, and it belongs to the MAC AC Servo Motors series. As a closed-loop rotary actuator, it converts electrical energy into controlled mechanical motion so positioning and velocity commands in automated machinery are carried out with repeatable accuracy. It is intended for machine axes that require stable speed control and consistent motion during regular operating cycles.

A centering pilot of 95 mm aligns the flange to gearboxes or machine mounts without additional sleeves and helps keep radial runout within normal tolerances. Heat is removed through natural convection, eliminating the need for active fans and simplifying cabinet ventilation, so clearance should be maintained around the housing for airflow. The stator uses winding code PS, which gives the electrical characteristics expected by the matched analog amplifier. During continuous duty, the shaft can reach 4000 rpm, covering mid-range spindle or transfer applications that require steady speed regulation. Rotor position is reported by integrated tacho feedback, allowing the drive to generate a proportional DC signal and close the velocity loop with fast response.

The 071 frame size sets the external envelope and torque class, while length code B indicates a moderate magnetic stack that balances inertia with continuous output. The tacho generator delivers 1.5 V/1000 rpm, a signal level suited for legacy velocity controllers that operate on low-level reference inputs. Power enters through a connector on side A, which can simplify cable routing when the motor is installed with the shaft facing the drive train. The motor is supplied without a blocking brake, so any static holding torque must come from the driven mechanism or from controlled drive torque at standstill.