What it is and where it bolts in
The Siemens 1FK7022-5AK71-1LB3 sits in the 1FK7 compact synchronous servo motor line — the small-frame brushless unit you see mated to SINAMICS S120 and SIMOVERT Masterdrives sections on packaging, converting, and small-axes machinery where dynamic response matters more than raw torque.
Lifecycle read for the BOM line
For a line still running an installed 1FK7 fleet, the practical sourcing path is independent distribution quoting against an RFQ: confirm nameplate vs. PO trace on the declaration pack, check encoder and brake option codes against the existing drive parameter set, and lock the lot before committing the BOM position — no second source ships under this exact order code from the OEM.