Part identity and class
The 1FK7022-5AK71-1LB0 is a Siemens 1FK7 Compact synchronous servo motor — a brushless, permanent-magnet rotary servo from the 1FK7 family used as the torque/speed actuator on SINAMICS and SIMOTION drive loops (cites:,).
Lifecycle and procurement posture
Lifecycle is recorded as EOL / last-time-buy on this code, so the active Siemens ordering channel for new production units has closed and the remaining stock is finite (cites:,).
Where the class is used
1FK7 Compact motors are specified as the rotating axis on packaging, small-format converting, feed-and-position, and laboratory-automation machines — applications where the compact frame, low rotor inertia, and tight dynamic response are the deciding factors (cites:).