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Siemens 1FK7042-5AK71-1UG0 — Servo Motors

Siemens 1FK7042-5AK71-1UG0 Servo Motor, 4.54 kg, EOL

MPN1FK7042-5AK71-1UG0
End of Life

Siemens 1FK7 compact synchronous servo motor, part 1FK7042-5AK71-1UG0, 4.54 kg, EOL phase-out, servo motors category.

$2,083.32Ref. price · indicative, final on quote
Siemens 1FK7042-5AK71-1UG0 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Mechanical

1FK7042-5AK71-1UG0 — Mechanical
ParameterValue
Weight4.54 kgs

Product details

1FK7 compact motor at end-of-life phase

The Siemens 1FK7042-5AK71-1UG0 is a 1FK7 compact synchronous servo motor in the servo motors line, built as the low-inertia rotor choice for SINAMICS S120 drive pairing on feed axes and small positioning axes. Lifecycle sits in the EOL hot window, meaning last-time-buy urgency applies on every BOM line still calling for this code.

Sourcing posture for an EOL-hot servo motor

With lifecycle flagged EOL hot, the Siemens distribution channel is no longer the dependable supply path — independent stock and broker lot quantities are the realistic route, lot-specific and confirmed at RFQ against the BOM.

Frequently asked questions

Will 1FK7042-5AK71-1UG0 drop into a panel specified around 1FK7042-5AF21-1UA0?

Dimensionally yes, both sit at 4.54 kg in the same 1FK7042 frame, so mounting and clearance line up. Winding code, encoder suffix, and shaft detail are not confirmed identical on the peer record — verify nameplate against the BOM before swapping.

MPN
1FK7042-5AK71-1UG0