R911322073 (MSK075E-0300-FN-S1-UG0-NNNN)

The liquid cooling removes stator heat efficiently for keeping copper temperatures near the 100 K rise condition where 15.6 A/23.0 Nm at standstill is specified. It stabilizes resistance, reduces demagnetization risk in demanding cycles and allows compact integration with less derating.

The S1 system provides dense cyclical feedback that drives can finely interpolate that improves commutation angle accuracy and lowers torque ripple during micro-moves. It also enables fast phase initialization and precise homing for multi-axis synchronization.

Its cylindrical plain shaft supports backlash-free clamping or keyless shrink-disc couplings for easing precision alignment and concentricity. It also allows keyed options if needed, but plain shafts minimize play and facilitate maintenance.

The higher inductance filters PWM ripple and damps di/dt for improving torque smoothness but requiring adequate voltage headroom and loop bandwidth. Its drive needs tune current controllers and field-weakening only where bus voltage and thermal limits remain compliant.

The “U” denotes a 240° rotatable connector that enables optimized cable exit to relieve strain and avoid interference with machine guarding. It simplifies routing in gantries or vertical axes without re-terminating cables.