Product Description:

The MAC071B-0-FS-2-F/95-B-1/S001 is a brushless AC servo motor manufactured by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. The unit converts electrical drive signals into precisely regulated shaft rotation, allowing automated equipment to position loads or maintain set speeds under varying process conditions. Its brushless design supports low-maintenance operation in machinery that runs for long production cycles. Incorporated into industrial drive chains, it operates as the prime mover that responds to analog command voltages issued by legacy control hardware. Typical applications include packaging equipment, transfer systems, and auxiliary machine axes that need repeatable rotary motion.

Mechanical dimensions place this model in the 071 frame size, while the rotor-stator stack follows the B length code, balancing torque capability against overall weight for medium-duty axes. The winding designated FS establishes the motor’s electrical resistance and inductance so that it matches drive units calibrated for that code. At a nominal operating speed of 2000 rpm, the shaft can deliver continuous motion without field weakening. Heat produced by copper and iron losses dissipates through natural convection, eliminating the need for external blowers or liquid circuits and simplifying panel layout. This combination shapes the motor’s thermal behavior, acceleration response, and wiring needs at the connected drive.

Velocity feedback is provided by tacho feedback, enabling the analog drive to measure actual speed directly from the motor shaft. The integral tacho generator produces 3 V/1000 rpm, furnishing a linear voltage proportional to rotation and permitting straightforward speed regulation without digital conversion. This analog feedback method lets the paired amplifier correct speed deviations without relying on serial encoder data. The increased smooth-running quality reduces ripple in the tacho signal and mechanical cogging, so closed-loop control maintains steadier velocity at low speeds. Because the unit is classified as a motor for analog drives, it can be used in installations that retain proportional amplifiers.