Product Description:

The MAC041B-0-QS-4-E/050-A-1/WI671LV is an AC servo motor produced by Bosch Rexroth Indramat for closed-loop motion control. It works with analog servo drives to supply regulated torque and speed in industrial automation cells, pick-and-place axes, and light machining spindles. Classified as a motor for analog drives, it uses command and feedback signals suited to legacy motion systems that do not rely on fieldbus communication. This operating style makes it appropriate for axis applications that need steady response during indexing, positioning, and controlled speed changes.

The motor has a size of 041 and a frame length of B, which set its mounting envelope and shaft height for compact machine layouts. Heat is removed by natural convection, so the housing relies on surface area and ambient airflow instead of a dedicated fan. Power conductors exit through a connector on side A, allowing cable routing parallel to the machine bed and helping keep adjacent modules clear. Rotor position is monitored by a standard-mounted incremental encoder, which supplies A/B pulse streams for velocity control and a zero index for homing. This feedback arrangement supports stable closed-loop operation without adding external sensing hardware.

A standard blocking brake clamps the shaft when control power is disabled, preventing vertical or inertial loads from drifting during maintenance or emergency stops. When higher resolution or absolute referencing is required, the optional feedback path supports tachometer feedback, incremental encoder, or absolute encoder signals. The motor belongs to the MAC AC Servo Motors family and uses a compact housing suited to light-duty servo axes where installation space is limited. Its combination of passive cooling, side-mounted power connection, and integrated feedback makes it useful in systems that need accurate motion without a separate cooling assembly.