{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1FK7043-4CH71-1CH1","brand":"Siemens","brandSlug":"siemens","productSlug":"1FK7043-4CH71-1CH1","canonicalUrl":"https://aoctrl.com/siemens/1FK7043-4CH71-1CH1","factsUrl":"https://aoctrl.com/api/mcp/products/1FK7043-4CH71-1CH1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 1FK7 high-dynamic synchronous servo motor, 1FK7043-4CH71-1CH1, 6.35 kg, listed lifecycle_stage end-of-life.","salesMarkdown":"## What the part is on the bench The 1FK7043-4CH71-1CH1 is a Siemens 1FK7 high-dynamic synchronous servo motor in the compact 1FK7 family, intended for high-acceleration positioning axes where the rotor inertia has to stay low relative to the load. It ships as a bare shaft servo without an integrated gearbox; pairing is done on the machine side with a SIMOTION, SINAMICS, or SIMATIC-controlled drive line that resolves the resolver/encoder feedback over DRIVE-CLiQ. ## Procurement posture for this MPN The 1FK7043-4CH71-1CH1 is supplied through independent distribution: matched against an RFQ, quoted by quantity and lead time, with each line traceable to original Siemens packaging and a documented declaration pack on request.","metaTitle":"Siemens 1FK7043-4CH71-1CH1 Servo Motor, 1FK7 high-dynamic","metaDescription":"Siemens 1FK7 high-dynamic synchronous servo motor, 6.35 kg, listed as eol_hot — sourced to order through independent distribution, quoted at RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Motors"],"specifications":{"Part #":"1FK7043-4CH71-1CH1","Weight":"6.35 kgs","Category":"Motors","Sub Category":"Servo Motors","Top Category":"Motors & Motor Controls","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,319.53","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/647530720402e9bdb23d5fbad456dc20.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/1FK7043-4CH71-1CH1/alternatives.json"},"ai":{"faq":[{"question":"What is 1FK7043-4CH71-1CH1's closest functional second source — can a 1FK7042-5AF71-1DB0 drop in?","answer":"No drop-in. The 1FK7042-5AF71-1DB0 is a smaller-frame 1FK7 variant at 5.44 kg with a different torque/inertia profile and a different encoder suffix, so the shaft, flange, and SINAMICS parameter block all need to be re-verified before it can replace the 1FK7043-4CH71-1CH1 in a working axis."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/1FK7043-4CH71-1CH1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/1FK7043-4CH71-1CH1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}