MSK071E-0450-NN-S1-UG0-NNNN | Rexroth MSK Series 071 Frame Servo Motor

Rexroth MSK071E-0450-NN-S1-UG0-NNNN is a Rexroth IndraDyn S synchronous servomotor built for industrial motion control applications. This servo motor in the MSK series delivers a continuous torque of 28 Nm and up to 84 Nm peak torque with a natural convection cooling scheme and a rotatable 240° Hiperface encoder interface.

The MSK071E-0450-NN-S1-UG0-NNNN integrates seamlessly with Rexroth drive controllers requiring precise position feedback and repeatable dynamics. Its singleturn optical Hiperface encoder and compact 071 frame help minimize integration effort for packaging, robotics, and CNC motion axes. Verify actual motor fixation, shaft coupling, and environmental sealing requirements with OEM datasheets.

Frequently Asked Questions

Q: Is this servo motor hot-swappable?
A: Honestly, no. Industrial servomotors like the MSK071E have windings that can hold current and an encoder that needs re-initialization on power-up. Isolating the drive and safe-stopping the axis before swapping is standard procedure.

Q: Is the MSK071E-0450-NN-S1-UG0-NNNN obsolete? Are there direct replacements?
A: In our experience, MSK IndraDyn S parts aren’t actively supported in new Rexroth catalogs but are widely stocked as surplus. The “UG0” feedback option aligns with Hiperface singleturn. A replacement path usually stays within IndraDyn S with matching winding code and encoder spec (e.g., MSK071E with UG1/UG2 options), but verify firmware/drive compatibility before retrofit.

Q: If I swap this motor, will I lose my program on the drive?
A: The program resides in the drive or controller, not the motor. However, the feedback device and torque constants need correct parameters in the drive database. Always back up drive parameters using the OEM tool (IndraWorks/Ethernet for HCS drives) before removal.

Q: Are these factory-new or refurbished stock?
A: We label listed units as New Original (New Surplus). That means unused excess stock, not refurbished. Verify via serial/part tags during inbound inspection for origin and handling history.

Q: What about warranty and lead times?
A: Surplus stock vendors typically offer their own limited warranty (often 30–90 days). OEM warranty on surplus units can be void or limited. Lead times depend on availability; plan for sourcing or rebuild time if your stock levels are tight.

Q: Do I need a brake or encoder option upgrade?
A: The UG0 config is singleturn Hiperface. If your motion control requires multiturn feedback or brake torque for safety, choose UG1/UG2 builds with matching drive parameter sets. Always match winding code and frame size to avoid re-tuning drive current limits.