Product Description:

Bosch Rexroth Indramat manufactures the MSK071C-0300-NN-M2-UG2-RNNN, a member of the MSK IndraDyn S Synchronous Motors series. This IndraDyn S synchronous servo motor is intended for precision motion axes in automated assembly stations, pick-and-place robots, and packaging equipment. In closed-loop systems, it converts drive commands into controlled rotary motion for positioning and speed-regulated tasks. The motor uses frame size 071 with a C-length stator and winding code 0300, and its mechanical design emphasizes increased concentricity to keep shaft runout low so coupling forces remain balanced during rapid acceleration.

Thermal management is handled by natural convection, so heat is removed through surface airflow without a separate fan or liquid circuit. This cooling method avoids auxiliary cooling hardware and keeps the motor housing externally simple. A rotatable 240° encoder connector simplifies cable routing, while the optical scanning head works with the EnDat 2.1 interface to provide synchronous bidirectional communication with the drive controller. Internal interpolation converts 2048 signal periods into high-resolution position data, and the housing carries an IP65 rating that helps block dust and resist water jets in washdown or coolant-rich stations.

Feedback repeatability is retained over long machine cycles because the encoder stores turns as a multi-turn absolute value, which eliminates homing after power loss. For vertical or index-table axes, the electrically released holding brake supplies 30 Nm of static torque when the drive is disabled. Power is transmitted through a plain shaft, reducing wear points associated with keyed joints in high-cycle service. The motor is rated to run in ambient air from 0 to 40 °C, and its Class 155 insulation system tolerates winding temperatures up to 155 °C, allowing continuous duty without thermal degradation when mounted inside compact multi-axis cabinets.