What this part is on the cell floor
The 1FK7042-5AF71-1KB0 is a Siemens 1FK7 synchronous servo motor — the compact high-dynamic family that pairs to SINAMICS S120 and SIMOTION over the DRIVE-CLiQ interface, closing position loops in the millisecond window a robotics cell needs to keep handshakes tight.
Is this part still on Siemens' price list?
For a robotics integrator that means locking in the BOM quantity now: once Siemens stops taking orders, the only supply path is independent distribution carrying new-surplus or factory-traceable stock, and that path is RFQ-driven rather than live-stock. Siemens is the OEM of record — the part ships under the 1FK7042-5AF71-1KB0 designation, and any replacement should be cross-referenced through Siemens' own configurator before being treated as drop-in compatible.