Product Description:

The MAC041B-0-BS-2-E/050-B-1 is a brushless AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Designed as a drive element for analog control loops, the unit delivers controlled torque and velocity so that machine axes can follow command voltages in assembly, packaging, and material-handling equipment. It integrates mechanical, electrical, and feedback functions into a single housing, letting panel-mounted drives execute point-to-point or continuous motion without external transducers. Because the motor is brushless, it avoids commutator wear and supports consistent response during repeated start-stop cycles.

The motor includes a standard blocking brake, allowing the shaft to remain locked whenever power is removed and helping prevent load drift on vertical axes. Thermal management relies on natural convection; heat is dissipated through the finned housing without forced airflow, so installation requires unobstructed air passages. Speed information is supplied through tacho feedback, a DC tachogenerator that sends an analog voltage proportional to rpm back to the drive for closed-loop speed regulation. The magnetic stack uses length code 041, the shortest build in the family, which helps minimize mass and inertia for quick acceleration. Its frame is identified as size B, giving a moderate flange dimension suited for compact machinery envelopes.

Power is routed through a connector on side B, keeping motor wiring away from the driven load and simplifying access from the rear of the cabinet. Rear-side cabling can also help when the front of the machine is crowded by couplings, guards, or the driven mechanism. Classified as a motor for analog drives, it interfaces directly with legacy velocity or position controllers that generate ±10 V command signals. This arrangement suits installations that rely on analog feedback, simple cable routing, and stable speed control on compact machine axes.