Lifecycle is the lead — eol_hot on the 1FK7 platform
The 1FK7061-4CF71-1CH1: For a motion bus integrator that runs the 1FK7 against a SINAMICS drive over EtherCAT, that lifecycle tag is the only number on the BOM line that actually decides whether the axis can be supported three years out — shaft length, encoder resolution, and brake option all matter less than whether the next spare has to be pulled from a broker.
What the part is — class and where it slots in
Catalogued under Servo Motors, with the broader trail Motors & Motor Controls → Motors → Servo Motors, the 1FK7061-4CF71-1CH1 sits in the 1FK7 family of high-dynamic synchronous servos intended for high-acceleration axes where the mechanical time constant of the load is short — indexing tables, packaging axes, small-format flying shears, and similar dynamic profiles.
Sourcing posture — quoted to order, not from stock
Independent surplus for a 1FK7 frame typically arrives factory-sealed with traceable nameplate data, which is what the cabinet documentation pack needs; lot age and encoder firmware revision are the two things to verify on the packing slip before the motor goes near a commissioning cell.