{"product_id":"reducteur-coaxial-varvel-f-rd12-arbre-de-sortie-o20-x-40-mm","title":"Varvel F RD12 Coaxial Gearbox – Output shaft Ø20 x 40 mm","description":"\u003ch3 id=\"quest-ce-que-le-reducteur-coaxial-varvel-frd12-889\" class=\"text-sm-600 text-grey-900 mt-8 mb-3 scroll-mt-4 wrap-break-word first:mt-0\"\u003eWhat is the Varvel FRD12 coaxial gearbox with a Ø20 mm shaft?\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eVarvel FRD12\u003c\/strong\u003e is part of the helical coaxial gearbox range from \u003cstrong\u003eVarvel\u003c\/strong\u003e, a leading Italian manufacturer in industrial power transmission. Designed to reduce the rotational speed of an electric motor while increasing output torque, this model stands out for its \u003cstrong\u003eØ20x40 mm solid output shaft\u003c\/strong\u003e, dimensioned to meet the requirements of medium-torque applications.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eIts compact and robust design allows it to be installed without constraints in various production environments: conveyors, automated handling systems, packaging machines, process lines, and food processing equipment. The \u003cstrong\u003eFRD12\u003c\/strong\u003e benefits from Varvel's historical expertise, whose solutions have been deployed for decades in European and international markets, with a constant commitment to reliability, quiet operation, and long service life in continuous use.\u003c\/p\u003e\n\u003ch3 id=\"principe-de-fonctionnement-889\" class=\"text-sm-600 text-grey-900 mt-8 mb-3 scroll-mt-4 wrap-break-word first:mt-0\"\u003eOperating principle of the FRD12 gearbox\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eFRD12\u003c\/strong\u003e utilizes a precision helical gear system that progressively transforms a fast input speed into a controlled output speed, with proportionally increased torque. The helical meshing, specific to Varvel technology, distributes loads over multiple teeth in simultaneous contact, which naturally dampens vibrations, limits noise emissions, and preserves component integrity over time.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe input interface is designed according to IEC standards, allowing direct connection to a standardized electric motor without the need for specific adapters. This design simplifies integration into new installations as well as modernization projects.\u003c\/p\u003e\n\u003ch3 id=\"compatibilite-moteur-et-brides-dentree-889\" class=\"text-sm-600 text-grey-900 mt-8 mb-3 scroll-mt-4 wrap-break-word first:mt-0\"\u003eMotor compatibility and input flanges\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eVarvel FRD12\u003c\/strong\u003e accepts standardized electric motors with frame sizes \u003cstrong\u003eIEC 56, IEC 63, IEC 71, IEC 80, and IEC 90\u003c\/strong\u003e, thus offering extensive coverage of the most common motor powers in industry. The connection can be made via either a \u003cstrong\u003eB5 flange\u003c\/strong\u003e or a \u003cstrong\u003eB14 flange\u003c\/strong\u003e, depending on space constraints and installation configuration.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eFor the \u003cstrong\u003eB5 flange\u003c\/strong\u003e, the standardized flange diameters are \u003cstrong\u003eØ120 mm for IEC 56\u003c\/strong\u003e, \u003cstrong\u003eØ140 mm for IEC 63\u003c\/strong\u003e, \u003cstrong\u003eØ160 mm for IEC 71, Ø200mm for IEC 80\u003c\/strong\u003e and\u003cstrong\u003e for IEC 90\u003c\/strong\u003e. For the \u003cstrong\u003eB14 flange\u003c\/strong\u003e, the face diameters are \u003cstrong\u003eØ90 mm for IEC 63\u003c\/strong\u003e, \u003cstrong\u003eØ105 mm for IEC 71\u003c\/strong\u003e, \u003cstrong\u003eØ120 mm for IEC 80\u003c\/strong\u003e and \u003cstrong\u003eØ140 mm for IEC 90\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eFRD12\u003c\/strong\u003e also features an \u003cstrong\u003einternal elastic coupling\u003c\/strong\u003e that dampens starting shocks, tolerates slight misalignments, and protects the entire geared motor against transient overloads. This is a decisive advantage when replacing existing equipment or commissioning a new line.\u003c\/p\u003e\n\u003ch3 id=\"rapports-de-reduction-disponibles-821\" class=\"text-sm-600 text-grey-900 mt-8 mb-3 scroll-mt-4 wrap-break-word first:mt-0\"\u003eAvailable reduction ratios\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eWith \u003cstrong\u003e23 reduction ratios\u003c\/strong\u003e, the \u003cstrong\u003eVarvel FRD12\u003c\/strong\u003e covers a particularly wide range of applications. The range extends from \u003cstrong\u003e2.25 to 63\u003c\/strong\u003e, including the following intermediate values: 2.5 – 2.80 – 3.15 – 3.55 – 4 – 4.5 – 5 – 5.6 – 6.3 – 7.1 – 8 – 9 – 10 – 11.2 – 12.5 – 16 – 20 – 25 – 31.5 – 40 – 50 – 63.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThis amplitude allows for precise selection of the appropriate ratio for each process, whether for slow, high-torque drives or moderate-speed applications. Each ratio has been optimized by Varvel engineers to maximize energy efficiency at every operating point.\u003c\/p\u003e\n\u003ch3 id=\"arbre-de-sortie-plein-20x40-mm-603\" class=\"text-sm-600 text-grey-900 mt-8 mb-3 scroll-mt-4 wrap-break-word first:mt-0\"\u003eØ20x40 mm solid output shaft\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eFRD12\u003c\/strong\u003e in this configuration is equipped with a \u003cstrong\u003esolid shaft of Ø20 mm diameter and 40 mm bearing length\u003c\/strong\u003e. These dimensions allow for direct mounting of various transmission components—pulleys, sprockets, rigid or elastic couplings—without the need for intermediate connecting parts.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThis shaft is dimensioned to withstand significant radial loads and repeated fatigue stresses, common conditions in intensive cycle industrial applications. The machining quality and materials selected by Varvel guarantee optimal mechanical strength throughout the gearbox's lifespan.\u003c\/p\u003e\n\u003ch3 id=\"options-de-montage-382\" class=\"text-sm-600 text-grey-900 mt-8 mb-3 scroll-mt-4 wrap-break-word first:mt-0\"\u003eMounting options\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eVarvel FRD12\u003c\/strong\u003e offers two mounting configurations adapted to field constraints. \u003cstrong\u003eFoot mounting B3\u003c\/strong\u003e is suitable for installations on chassis or metal frames: the gearbox is laid flat and bolted, ensuring great stability and facilitating maintenance. \u003cstrong\u003eFront flange mounting\u003c\/strong\u003e, on the other hand, meets configurations where floor space is limited, allowing direct attachment to the machine frame face.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThis dual mounting option simplifies both new installation projects and replacement operations on existing equipment, without requiring structural modifications.\u003c\/p\u003e\n\u003ch3 id=\"equivalences-avec-dautres-marques-148\" class=\"text-sm-600 text-grey-900 mt-8 mb-3 scroll-mt-4 wrap-break-word first:mt-0\"\u003eEquivalences with other brands\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThanks to strict adherence to IEC standards, the \u003cstrong\u003eVarvel FRD12 Ø20x40 mm\u003c\/strong\u003e is a direct alternative to many coaxial gearboxes on the market. With standardized dimensions, shaft diameters, and mounting hole patterns, it can replace models from brands such as \u003cstrong\u003eSEW-Eurodrive, Motovario, Bonfiglioli, Leroy-Somer, or STM\u003c\/strong\u003e, subject to prior verification of mechanical interfaces and availability of the desired reduction ratio.\u003c\/p\u003e\n\u003ch3 id=\"conclusion-technique\" class=\"text-sm-600 text-grey-900 mt-8 mb-3 scroll-mt-4 wrap-break-word first:mt-0\"\u003eTechnical conclusion\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eVarvel FRD12 Ø20x40 mm\u003c\/strong\u003e is a complete coaxial transmission solution, combining versatility, robustness, and ease of integration. Its \u003cstrong\u003e23 reduction ratios up to 63\u003c\/strong\u003e, IEC motor compatibility from 56 to 90, two flange types, and two mounting modes make it a gearbox particularly suitable for medium-torque industrial applications. It embodies the level of excellence that Varvel has maintained for decades: durable components, standardized interfaces, and proven reliability in real production conditions.\u003c\/p\u003e","brand":"Varvel","offers":[{"title":"Default Title","offer_id":53147113947472,"sku":"F RD12 Ø20","price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0931\/3927\/2016\/files\/reducteur-a-engrenages-cylindriques-varvel-f-rd-22.jpg?v=1781172694","url":"https:\/\/dymatec-industries.com\/en\/products\/reducteur-coaxial-varvel-f-rd12-arbre-de-sortie-o20-x-40-mm","provider":"Dymatec Industries","version":"1.0","type":"link"}