Product Description:

The MSK071E-0450-FN-M2-UG2-RNNN servomotor is part of the MSK IndraDyn S Synchronous Motors series from Bosch Rexroth Indramat. Designed for closed-loop drive axes in industrial automation, it converts four-quadrant inverter output into precise rotary motion for applications such as pick-and-place, labeling, and indexing. This type of motor is suited for axes that require tightly regulated torque, speed, and position during rapid cycle changes. The rotor and housing use an increased concentricity design that helps reduce radial runout when the motor is coupled to precision gearboxes.

To support high continuous loads, the stator uses liquid cooling, and the FN code indicates that the motor requires an external coolant circuit. Winding code 0450, motor length E, and size 071 identify the electrical setup and mechanical envelope for this version. Position feedback is supplied by an optical encoder that communicates over EnDat2.1, allowing the control system to receive digital position data directly from the motor. The encoder provides 2048 signal periods per revolution and stores position with a multi-turn absolute format, so the axis can retain position information across multiple revolutions. A rotatable 240° connector helps with cable routing in tight machine frames, and an electrically released brake rated at 30 Nm holds the axis during power-off or emergency-stop conditions.

The housing has an IP65 protection rating, which keeps dust and water jets away from the windings, bearings, and brake components. The motor is intended for ambient temperatures from 0 to 40 °C, matching cabinet-free mounting on gantries or processing heads where surrounding air remains within that range. A plain shaft supports clamp-hub connections and avoids keyway stress points, which is useful where backlash and shaft balance must be controlled carefully. The winding system uses insulation class 155, which permits winding temperatures up to 155 °C before insulation deterioration begins and suits the high current density associated with a liquid-cooled stator. This thermal margin helps the motor tolerate the heat generated during repeated acceleration and continuous-duty operation.