Product Description:

The MAC071A-0-ES-3-C/095-B-0 is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Designed for analog drive amplifiers, it translates command currents into controlled torque and velocity for automated machinery. This operating principle allows the paired amplifier to regulate axis behavior with consistent response during changing loads. It is used on pick-and-place heads, indexing tables, and light machining spindles where responsive motion is needed. Standardized mounting and electrical interfaces support integration into compatible motion systems.

The centering flange is machined to 95 mm, a dimension that aligns the motor shaft concentrically with the driven load and helps minimize radial runout. The rotor can maintain 4000 rpm under rated voltage, giving ample headroom for rapid traverse moves. Internal heat is dissipated by natural convection, eliminating auxiliary fans and allowing cabinet airflow to remain simple. Power leads attach through a single connector on side B, leaving the opposite end clear for feedback wiring and mechanical couplings. During power-off conditions, the shaft is free because the unit is supplied without a blocking brake, so any required holding torque must come from external braking or drive control.

The electrical design identified by winding code ES gives the motor electrical characteristics suited to compatible analog current loops. Mechanical length class A keeps the stack short, which reduces mass moment of inertia and supports high acceleration. Speed feedback comes from the integrated tacho, which generates 1.5 V/1000 rpm. That signal gives the drive a proportional speed reference across the operating range, while the second shaft end can carry complementary encoders for position tasks. Frame size 071 uses the mounting pattern and shaft diameter shared across the series, allowing the motor to fit mid-range loads such as gantry axes or indexing tables without adapter plates.