Product Description:

The MAC041B-0-BS-3-E/050-A-1 is a brushless AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. In automated machinery, it converts drive commands from analog amplifiers into precisely controlled rotary motion for positioning, indexing, and speed-regulated tasks on packaging lines, pick-and-place heads, and light-duty machining axes. Its compact format suits installations where accurate motion is required without a large motor footprint.

With motor size B, the unit matches compact gearboxes and allows direct mounting to small-footprint equipment. Its stator stack length of 041 sets the active magnetic volume and limits continuous torque to stay within thermal limits. Heat is removed by natural convection, so installation must leave clearance around the housing for free airflow instead of relying on forced-air ducts. The power conductors exit through a connector on side A, which can simplify cable routing when the motor is placed against a machine wall. A standard blocking brake is integrated to hold the shaft at standstill, and it engages automatically when drive power is removed to help prevent load back-driving on vertical or overhung axes.

Tachogenerator feedback on a second shaft end supplies velocity information, and the factory lists this arrangement as with tacho feedback and a second shaft end. Because the device is specified as a motor for analog drives, it pairs directly with legacy current-controlled amplifiers rather than digital interfaces. The separate feedback path supports stable speed monitoring during operation, while the second shaft end accommodates the tachogenerator without changing the main drive connection. Low inertial mass helps the motor respond quickly in synchronized multi-axis applications and other light to medium duty automation stations.