R911299355 (MKD115C-024-KG1-AA)

The plain output shaft minimizes keyway stress concentrators, while the sealing ring blocks coolant and particulate migration toward the bearing set. It preserves bearing grease life and maintain axial/radial accuracy in contaminated environments.

The integral brake (≈22 Nm per vendor listing) is specified for static holding at standstill and power-off axial locking, not continuous dynamic deceleration. It secures vertical axes and indexers when torque production is removed.

The surface-cooled MKD units rely on case-to-ambient heat rejection; cabinet airflow or heat-exchanger assistance may be required to avoid thermal limiting. Its class-F insulation adds thermal headroom but doesn’t replace proper enclosure temperature management and drive derating.

The side-A power exit fixes bend radii and strain-relief direction for simplifying parallel bus routing and reducing loop area. Its feedback cabling segregates from power runs to minimize capacitive/inductive coupling and encoder-channel noise.

The motor’s electrical point favors mid-speed torque with moderate rotor inertia; coupling selection should target 3:1–10:1 reflected-inertia ratios and torsional stiffness compatible with resolver bandwidth to avoid oscillation.