{"product_id":"siemens-1fk7081-2ac71-1qa0-1fk7-ct-servo-motor","title":"Siemens 1FK7081-2AC71-1QA0 SIMOTICS S 1FK7-CT Synchronous Servo Motor 12Nm 2000rpm","description":"\u003cp\u003eThe Siemens 1FK7081-2AC71-1QA0 is a SIMOTICS S 1FK7-CT synchronous servo motor rated 12 Nm continuous torque (M0 at 100K) at 2,000 rpm, with 4.4 A rated current and a shaft height of 80 mm. It uses natural cooling, carries IP64 protection, and includes a Drive-CLiQ single-turn absolute encoder (20-bit), no holding brake.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrder Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1FK7081-2AC71-1QA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIMOTICS S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1FK7-CT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Poles\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power PN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.1 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Torque M0 (100K)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 Nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated DC Link Voltage UDC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptimum Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Constant at 20 degC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e154.5 V\/1000min-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWinding Resistance at 20 degC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.27 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorque Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.40 Nm\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMoment of Inertia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20.000 kgcm2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRotating Field Inductance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23.5 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Time Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18.40 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Time Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.33 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Time Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShaft Torsional Stiffness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e109,000 Nm\/rad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e93.0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCooling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNatural cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDegree of Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIP64\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShaft Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRadial \/ Concentricity \/ Axial Runout Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.050 mm \/ 0.10 mm \/ 0.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnthracite, RAL 7016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEncoder\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-turn absolute, 20-bit, Drive-CLiQ (AS20DQI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHolding Brake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eAt 12 Nm continuous this shaft-height-80 winding delivers more torque than any of the shaft-63 windings in the family, and its 109,000 Nm\/rad shaft torsional stiffness is the stiffest coupling in this comparison set - pick it over the shaft-63 frame when the load needs more than 11 Nm without stepping up to a larger diameter frame. No holding brake is fitted, so a vertical or overhauling axis needs an external brake to hold position with drive power removed.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eSuited to synchronous servo axes needing 12 Nm at a 2,000 rpm base speed with a stiff mechanical coupling, in machine tool and material-handling applications, where an external or gearbox-integrated brake already holds the load. The Drive-CLiQ encoder interface connects directly to Drive-CLiQ-enabled Siemens drive systems without separate encoder cabling.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960346370331,"sku":"1FK7081-2AC71-1QA0","price":1811.29,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-1fk7081-2ac71-1qa0-1fk7-ct-servo-motor.png?v=1789757835","url":"https:\/\/stoklink.com\/products\/siemens-1fk7081-2ac71-1qa0-1fk7-ct-servo-motor","provider":"Stoklink","version":"1.0","type":"link"}