Product Description:

The Bosch Rexroth Indramat MAC071A-0-ES-4-C/095-B-1 is an AC servo motor in the MAC AC Servo Motors series. Designed as a motor for analog drives, it converts drive-amplifier commands into controlled rotary motion for positioning, feed, and spindle functions in industrial automation where accurate speed and torque regulation are required during continuous operation. Heat leaves the housing by natural convection, eliminating the need for fans or liquid circuits in most cabinets.

The motor runs at a nominal speed of 4000 rpm, which is the shaft speed it can sustain under rated electrical and mechanical loading. A standard blocking brake is integrated, and its holding torque of 3 Nm keeps vertical or overhung loads stationary whenever power is removed. The centering diameter of 95 mm provides the pilot fit for mounting to gearboxes or machine frames and helps maintain axial alignment during installation. Position and speed signals are generated through tacho feedback with incremental or absolute encoder options, letting analog controllers close velocity and position loops with the required resolution and dynamic range.

Size code 071 sets the stator frame diameter and provides a compact footprint for mid-range torque applications. The winding follows code ES, which matches the motor to compatible Indramat analog amplifiers by setting the electrical constants expected by the drive. Power and feedback conductors exit through a connector on side B, simplifying cable routing in restricted enclosures. Motor length A keeps the active stack short while maintaining thermal mass, and standard tacho quality supports stable speed tracking across a wide duty cycle. For speed verification, the tacho delivers 1.5 V/1000 rpm, supplying the drive with a linear analog voltage that is directly proportional to shaft speed.