Product Description:

The MSK071D-0300-FN-S1-UG0-NNNN is manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. It is an AC servo unit that delivers closed-loop torque and position control for automated presses, pick-and-place stations, and CNC feed axes. The sealed housing, integrated feedback components, and internal coolant circuit allow the motor to mount directly on machinery without separate cooling fans or external encoders. Because the feedback system is built in, the paired drive can monitor rotor position continuously during acceleration, deceleration, and standstill. This arrangement helps maintain high dynamic accuracy while keeping the drive package compact.

This model uses liquid cooling, so coolant circulates through the housing to remove joule and iron losses and keep the windings within thermal limits during continuous duty. A feedback plug that is rotatable 240° eases cable routing in crowded cabinets or on machines with limited clearance. Position data is exchanged over the Hiperface protocol, allowing commutation signals and absolute multi-turn values to travel on the same interface. The optical reader resolves the code disk into 128 signal periods per mechanical revolution, which supports precise speed and position correction at high shaft speeds. The housing is sealed to IP65, which helps block dust and low-pressure water jets when a shaft seal is installed.

The driveline connection uses a plain shaft that transmits torque through hub or clamp couplings, and the motor is supplied without a holding brake to keep moving mass low on rapid-cycle axes. Continuous operation is permitted when ambient air remains between 0–40 °C. Class F insulation permits winding temperatures up to 155 °C, which works with the coolant path to support stable thermal performance. Winding code 0300 indicates the stator turns and resistance used with compatible IndraDrive inverters. The D-length body increases axial active iron while keeping the same mounting pilot for the 071 frame size. Because there is no holding brake, any vertical or suspended load must be held by drive torque or a separate mechanical device.