Product Description:

The MAC071B-0-FS-3-C/095-A-0 servo motor is produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Designed as a motor for analog drives, it interfaces with legacy controller hardware while still providing precise torque regulation for industrial automation axes. The unit is supplied without a blocking brake, so load holding must be provided through external mechanisms or drive torque. This layout suits continuously rotating machinery where passive shaft locking is unnecessary and helps reduce weight and maintenance items. It is also suitable for installations where analog command structures remain in service and a straightforward motor interface is required.

Its frame is classified as motor size 071, which gives the motor a stator diameter and overall mechanical envelope suited to medium-power motion tasks. The length code B indicates a moderate active stack that balances continuous torque with compact installation depth. A centering diameter of 95 mm provides the reference surface for aligning the flange to gearboxes or mounting plates, helping maintain concentricity and low runout. This mounting geometry supports accurate mechanical seating on machine interfaces that depend on a centered motor face. The rotor uses winding code FS, which corresponds to the electrical values expected by compatible drive amplifiers. At nominal operation, the shaft reaches 2000 rpm, a speed that fits conveyors, printing cylinders, and packaging spindles.

Thermal management relies on natural convection, allowing the housing ribs to dissipate heat without auxiliary fans and simplifying enclosure layouts. Because cooling is passive, there is no separate blower circuit to wire or maintain. The power leads are routed through a connector on side A, which keeps the high-current connection in a fixed cable direction. Position and velocity signals are generated by a tacho feedback with a second shaft end arrangement. The second shaft end allows the feedback device to be driven directly from the motor shaft. The auxiliary shaft drives a standard-quality tacho that outputs 3 V/1000 rpm, giving the analog controller a linear voltage proportional to speed for real-time regulation.