1FK7 compact servo, low-inertia rotor, machine-tool duty
The Siemens 1FK7022-5AK71-1HH3 is a 1FK7 compact synchronous servo motor from the Siemens SIMOTICS S line, the family typically deployed on feed axes, small indexing tables and packaging spindles where a low-inertia rotor keeps the dynamic response tight (cites:,).
Lifecycle read on a hot EOL motor
For an integrator or MRO planner with a live axis on this motor the practical path is independent distribution: availability is lot-specific and pricing is confirmed against an RFQ rather than a published list (cites:).
Panel-side swap notes
The 1FK7022-5AK71-1HH3 is a compact-format 1FK7; replacement swaps on an installed axis need to verify the encoder variant, holding-brake option and shaft keying against the nameplate of the unit in service — the 1FK7 family splits across several encoder and brake combinations under the same mechanical envelope, so a same-frame drop-in is not automatic (cites:,).