What the ratings decide on a 1FK7 Compact axis
The 1FK7063-5AF71-1...: The Siemens 1FK7063-5AF71-1 is a SIMOTICS S 1FK7 Compact synchronous servo motor rated 11 Nm continuous, 2.29 kW at 3000 rpm, naturally cooled. That output envelope places it in the mid-range of the 1FK7 Compact family — sized for compact machine axes where a high dynamic overload margin matters more than the headline continuous figure. The IM B5 flange (also usable in IM V1 / IM V3) and the rotatable power/signal connector cover the typical mounting orientations a panel builder or machine OEM needs on a vertical or inclined axis. The rotatable plug means the same motor drops into machines where the cable exit direction is dictated by the cabinet layout, without re-specifying a different variant.
Lifecycle is the headline decision right now
There is no official successor cross-reference on the record for this order code, so any 'equivalent' substitution needs to be confirmed against the active 1FK7 Compact line by shaft height, torque, and connector variant — not assumed from the family name alone.
Deployment context for the integrator
On a SINAMICS S120 or similar drive, a 1FK7063-5AF71-1 runs as a synchronous servo with the resolver or absolute encoder feedback carried through the rotatable signal connector. The naturally cooled frame keeps the panel-side thermal envelope simple — no external fan or blower to specify, route, or filter — which is the typical fit reason for the 1FK7 Compact in a sealed machine.
Sourcing posture for an eol_hot servo
With the part flagged eol_hot and no on-record successor, the realistic route is the independent surplus and broker network.