{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1FK7042-2AK71-3SB0","brand":"Siemens","brandSlug":"siemens","productSlug":"1FK7042-2AK71-3SB0","canonicalUrl":"https://aoctrl.com/siemens/1FK7042-2AK71-3SB0","factsUrl":"https://aoctrl.com/api/mcp/products/1FK7042-2AK71-3SB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 1FK7042-2AK71-3SB0 SIMOTICS S 1FK7 synchronous servo motor, 0.94 kW, 600 VDC, 3 Nm, 6000 rpm, naturally cooled, IP64, with holding brake and multi-pole resolver.","salesMarkdown":"## What this motor is, and where it bolts in The Siemens 1FK7042-2AK71-3SB0 is a SIMOTICS S 1FK7 synchronous servo motor rated 0.94 kW at a 600 VDC link, with a 3 Nm static torque figure (100 K) and a rated speed of 6000 rpm — a compact, high-dynamics servo sized for packaging, small-format converting, and feeder/indexing stations where a holding brake is required for vertical or overhung loads. Built on flange 1, IMB 5 design (also accepted in IM V1 and IM V3 mounting orientations), naturally cooled, with cable outlet on the non-drive end and an IP64 seal class — meaning the housing resists dust ingress and splashed water, but is not rated for washdown; keep it out of wet zones on food, beverage, and pharmaceutical lines. Feedback is a multi-pole resolver (resolver P = 3), the rugged, low-resolution feedback choice that pairs naturally with Siemens SINAMICS S120 drive commissioning and tolerates the vibration and thermal cycles typical of packaging and material-handling machinery. ## Why the holding brake and tolerance N matter at the panel Shaft tolerance class N gives the standard running clearance — compatible with standard couplings and shrink-disc mounts in the 1FK7 family; if the driven machine expects a tighter balance grade (e.g. direct-coupled high-speed spindles) the standard keyway and tolerance are usually sufficient for 6000 rpm operation. ## Lifecycle posture — last-time-buy window in view For a procurement planner, an eol_hot rating means the BOM line needs a freeze date in mind: stock that exists in the authorised and independent channel is the supply going forward, and any new design-ins should plan for a replacement servo (typically the 1FK2 successor family for new builds, or a like-for-like 1FK7 unit pulled from traceable surplus) rather than a fresh factory order.","metaTitle":"Siemens 1FK7042-2AK71-3SB0 Servo Motor, 0.94 kW, IP64","metaDescription":"Siemens 1FK7042-2AK71-3SB0 SIMOTICS S synchronous servo, 0.94 kW, 600 VDC, 3 Nm, 6000 rpm, IP64. Lifecycle: eol_hot. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Motors"],"specifications":{"title":"1FK7042-2AK71-3SB0","description":"SIMOTICS S Synchronous motor 1FK7-CT PN=0.94kW; UDC=600V M0=3Nm (100K); NN=6000rpm; Naturally cooled IMB 5 design (IM V1, IM V3) Flange 1 Cable outlet direction NDE Resolver multi-pole (resolver P=3); Shaft with feather key Tolerance N with holding brake; Degree of protection IP64","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=443099&mlfb=1FK7042-2AK71-3SB0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 1FK7042-2AK71-3SB0?","answer":"No stock figure, lead-time number, or fixed price is carried on the listing — that is the deliberate posture for a phase-out servo."},{"question":"What is the closest pin-compatible alternative to 1FK7042-2AK71-3SB0 in this Servo Motors family?","answer":"No official pin-compatible successor is recorded against this specific order code. The natural migration target on the Siemens SIMOTICS S line is the 1FK2 successor family for new design-ins, while a like-for-like replacement for in-service machines is sourced from the same 1FK7 family via traceable surplus — exact mechanical and electrical compatibility should be confirmed against the original project documentation before specifying."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/1FK7042-2AK71-3SB0","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/1FK7042-2AK71-3SB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T08:04:08.101Z","lastPublished":"2026-07-23T08:04:08.101Z","indexable":true}}