Where this motor bolts in
The 1FK7042-2AF71-1DA0 is a 1FK7 compact synchronous servo out of the Siemens motion line — the compact family slots into machines where a short-stack brushless servo pairs with a SINAMICS drive, the resolver or encoder feedback wiring back to the controller, and a holding-brake option where the axis needs a parked-position lock.
Lifecycle — the line is hot-EOL
The order code carries eol_hot, meaning Siemens has the 1FK7 compact family on a phase-out footing and the factory window for new builds is closing — for a line that has run on this motor for a decade, that is the signal to lock in spares before the surplus market is the only source. When the factory channel closes, the independent-distribution channel picks up the slack — genuine pulls from decommissioned cells, panel de-scopes, and broker lots get specified into the BOM against an RFQ, with quantity, condition, and traceability confirmed at quote time rather than promised on a listing page.
Sourcing posture — quoted to order, no number posted
No cross-reference or pin-compatible successor is on the record in this ledger for the 1FK7042-2AF71-1DA0, so a like-for-like swap inside the same family is not something to assume — a board or bracket change rides alongside any motor substitution, and that decision belongs in the engineering review, not the procurement desk.