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Siemens 1FK7042-5AK71-1UG5 — Servo Motors

Siemens 1FK7042-5AK71-1UG5 Servo Motor, EOL, 4.54 kg

MPN1FK7042-5AK71-1UG5
End of Life

Siemens 1FK7 compact synchronous servo motor, 1FK7042-5AK71-1UG5, 4.54 kg, EOL-flagged servo motor line.

$1,568.88Ref. price · indicative, final on quote
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

1FK7042-5AK71-1UG5 — Mechanical
ParameterValue
Weight4.54 kgs

Product details

1FK7042-5AK71-1UG5 on the bench: form factor and family

Cataloguing on the storefront places this part under Servo Motors — the sub-category is what most machine builders search when they need a replacement motor that still has to talk to the existing drive via DRIVE-CLiQ or resolver feedback depending on the suffix.

Frequently asked questions

When sourcing 1FK7042-5AK71-1UG5, what's the closest functional second-source — 1FK7042-5AF21-1UA0?

1FK7042-5AF21-1UA0 is the closest listed peer — same 1FK7 family and the same 4.54 kg mass figure, but the -1UA0 suffix encodes a different winding/feedback/holding-brake combination than -1UG5, so it is a same-family peer, not a confirmed drop-in. Treat it as a mechanical-fit candidate and re-validate the encoder and brake options before committing.

MPN
1FK7042-5AK71-1UG5