What this motor is and where it belongs on the line
The 1FK7083-2AF71-1RG0-Z + X05 is a brushless servomotor from the Siemens 1FK7 family, classified under Servo Motors — paired with a SINAMICS S120 drive on the cabinet backplate and bolted to the gearbox or ballscrew flange on the machine side. It carries the X05 option code, which is added to the base order number as a configurator-selected variant on the nameplate — the BOM line and the SINAMICS topology file both have to read the full suffix string, not just the root.
Lifecycle posture — the headline read for this part
The lifecycle stage for this order code is recorded as eol_hot — Siemens has moved it out of active serial production, and the open-channel route is now the independent surplus and broker market rather than the factory BOM feed. For a commissioning engineer, the practical impact is that a swap of this motor into a running line is a stocked-against-the-RFQ transaction: the nameplate, the resolver or encoder feedback code, and the X05 option have to match the SINAMICS drive's topology entry, or the commissioning software flags a configuration mismatch at download.