{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1FK7043-7AH71-1...","brand":"Siemens","brandSlug":"siemens","productSlug":"1FK7043-7AH71-1...","canonicalUrl":"https://aoctrl.com/siemens/1FK7043-7AH71-1...","factsUrl":"https://aoctrl.com/api/mcp/products/1FK7043-7AH71-1...","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMOTICS S synchronous servo motor, 1FK7 High Dynamic series, 3.1 Nm, 4500 rpm, 1.23 kW, naturally cooled, B5 flange, EOL lifecycle stage.","salesMarkdown":"## What the order code resolves to The 1FK7043-7AH71-1...: The Siemens 1FK7043-7AH71-1 is a SIMOTICS S 1FK7 High Dynamic synchronous servo motor, 3.1 Nm at 100K winding temperature, 4500 rpm rated speed, and 1.23 kW continuous power when naturally cooled, with IM B5 mounting and a rotatable power/signal connector plug. The connector rotates 270° on the housing, which matters in tight cabinet routings where the cable exit has to clear the gearbox or the encoder harness without a right-angle boot. ## Why the headline numbers drive the fit 3.1 Nm at 100K and 4500 rpm put this firmly in the compact high-dynamic servo class — sized for feed axes, indexing tables, and small packaging or converting drives where the cycle demands short accel ramps more than long constant-torque holds. Natural cooling (no external fan) means the 1.23 kW rating assumes a free-shaft, non-enclosed mounting surface; derating applies once the motor is boxed into a sealed gearbox housing or stacked next to a VFD with restricted airflow. ## Lifecycle stage and what it means on the dock Think landed, not list — for an EOL servo motor the bill of materials is the unit price plus the import paperwork, the certification copies for the customs file, and the lead-time cushion if the dock needs the motor before a line-down escalation.","metaTitle":"1FK7043-7AH71-1... Siemens 1FK7043-7AH71-1 Servo Motor","metaDescription":"Siemens 1FK7043-7AH71-1 SIMOTICS S synchronous servo motor, 3.1 Nm 100K, 4500 rpm, 1.23 kW, B5 flange, EOL hot — quoted to order via independent sourcing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Motors"],"specifications":{"title":"1FK7043-7AH71-1...","description":"****spare part**** SIMOTICS S synchronous servo motor 1FK7 High Dynamic, 3.1 Nm 100K, 4500 rpm, 1.23 kW naturally cooled IM B5 (V1, V3) power/signal connector plug rotatable by 270°","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/647530720402e9bdb23d5fbad456dc20.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=90192&mlfb=1FK7043-7AH71-1..."},"ai":{"faq":[{"question":"What is 1FK7043-7AH71-1 used for?","answer":"It is a SIMOTICS S 1FK7 High Dynamic synchronous servo motor, 3.1 Nm at 100K, 4500 rpm, 1.23 kW naturally cooled, B5 flange — typically specified for compact feed axes, indexing tables, and packaging or converting lines that need short accel ramps at high dynamic response."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/1FK7043-7AH71-1...","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/1FK7043-7AH71-1... when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T08:09:40.639Z","lastPublished":"2026-07-23T08:09:40.639Z","indexable":true}}