Product Description:

The MAC041B-0-BS-2-E/050-B-0/S009 is an AC servo motor in the MAC AC Servo Motors series and was engineered by Bosch Rexroth Indramat. It converts command voltages from legacy controllers into speed-controlled rotary motion for industrial actuators such as positioning tables, feeders, and auxiliary axes. This operating style suits established machine platforms that still rely on analog control loops rather than fieldbus-based motion systems. In closed-loop automation service, the motor provides the torque and shaft speed needed for repeatable point-to-point indexing, synchronized process movement, and continuous-run operation. Because the motor works within a familiar analog scheme, it can be integrated without changing the existing command structure of the machine.

The motor dissipates heat through natural convection, so it does not require external blowers or liquid circuits and can be installed in compact cabinets or enclosed machine spaces. Passive cooling also keeps the installation simple where added airflow hardware would take extra room. Rotor speed is monitored by integrated tacho feedback, allowing an analog controller to regulate current without a separate encoder interface or extra feedback wiring. The electromagnetic stack corresponds to length code 041, which balances torque output, rotor inertia, and package size for mid-range load profiles. Electrical power is delivered through a connector located on side B of the housing, which can simplify cable routing when the opposite face is mounted directly to the machine frame. That helps preserve cabinet layout when replacement space is limited and existing harness routes must be reused.

The motor has no blocking brake, so holding force must come from drive torque or an external clamp on vertical axes and parked loads. This also reduces added mass and avoids the response delay associated with a brake assembly during frequent starts and stops. Frame designation B indicates the stator diameter and helps match the motor to gearheads or mounting parts that use the same pilot bore and bolt circle. As a motor for analog drives, it interfaces directly with voltage-controlled amplifiers that use tacho voltage for speed feedback instead of digital position data. This arrangement is commonly used where stable speed regulation matters more than onboard digital position reporting. It is suited to applications that do not need a holding brake or separate digital motor feedback at the shaft.