{"product_id":"reducteur-coaxial-varvel-f-rd12-arbre-de-sortie-o25-x-50-mm","title":"Varvel F RD12 Coaxial Reducer – Output Shaft Ø25 x 50 mm","description":"\u003ch2 class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003e\u003cstrong\u003eWhat is the Varvel FRD12 coaxial gearbox with Ø25 mm shaft?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003ePart of the \u003cstrong\u003eVarvel\u003c\/strong\u003e helical coaxial series, the \u003cstrong\u003eFRD12\u003c\/strong\u003e is an industrial gear reducer developed by this renowned Italian manufacturer, known for its expertise in power transmission. Its role is to convert the rotational speed of an electric motor into a slower and more powerful output motion, with increased torque to meet modern industrial demands. This variant stands out with its \u003cstrong\u003eØ25x50 mm solid output shaft\u003c\/strong\u003e, a larger section that extends its transmission capabilities to applications requiring higher torque.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThanks to its optimized footprint and robust construction, the \u003cstrong\u003eFRD12\u003c\/strong\u003e naturally finds its place in demanding production environments: conveyor lines, handling equipment, packaging machines, industrial process installations, or agri-food units. This model is based on Varvel's decades of expertise, present in European and global markets, synonymous with lasting reliability, quiet operation, and continuous service life.\u003c\/p\u003e\n\u003ch2 class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003e\u003cstrong\u003eFRD12 Gear Reducer Operating Principle\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eFRD12\u003c\/strong\u003e's transmission relies on a stage of precisely cut helical gears, which progressively convert a high input speed into a reduced output speed, accompanied by a proportionally increased torque. The helical tooth geometry, characteristic of Varvel technology, ensures continuous contact over several teeth simultaneously, resulting in smooth transmission, low vibration levels, and controlled wear of internal components.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe reducer's input is machined according to IEC standards, allowing direct coupling with any standardized electric motor on the market, without the need for intermediate adaptation parts. This native compatibility facilitates both new installations and replacement operations on existing equipment.\u003c\/p\u003e\n\u003ch3 class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003e\u003cstrong\u003eMotor Compatibility and Input Flanges\u003c\/strong\u003e\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 compatible with standardized electric motors with frames \u003cstrong\u003eIEC 56, IEC 63, IEC 71, IEC 80, and IEC 90\u003c\/strong\u003e, covering most motor powers encountered in industry. The motor-reducer interface is provided by a \u003cstrong\u003eB5 or B14 flange\u003c\/strong\u003e depending on the chosen configuration and the space constraints specific to each installation.\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 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\u003c\/strong\u003e, and \u003cstrong\u003eØ200 mm for IEC 80 and 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 includes a standard \u003cstrong\u003einternal elastic coupling\u003c\/strong\u003e that absorbs shocks related to starts, compensates for slight misalignments between motor and reducer, and protects the entire drive train against momentary overloads. This is a particularly appreciated asset in replacement contexts or when commissioning a new production line.\u003c\/p\u003e\n\u003ch3 class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003e\u003cstrong\u003eAvailable Reduction Ratios\u003c\/strong\u003e\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 \u003cstrong\u003e23 reduction ratios\u003c\/strong\u003e covering a range from \u003cstrong\u003e2.25 to 63\u003c\/strong\u003e, with the following intermediate steps: 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 wide range of choices allows for precisely identifying the most suitable ratio for each application, whether for a slow, high-torque drive or for an intermediate output speed. Each of these ratios has been optimized by Varvel's engineering teams, with the goal of maintaining the best possible efficiency regardless of the operating point.\u003c\/p\u003e\n\u003ch3 class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003e\u003cstrong\u003eØ25x50 mm Solid Output Shaft\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eIn this version, the \u003cstrong\u003eFRD12\u003c\/strong\u003e is equipped with a \u003cstrong\u003esolid shaft of Ø25 mm diameter for a bearing length of 50 mm\u003c\/strong\u003e. Compared to smaller diameter versions, this shaft section offers increased radial load capacity and better resistance to fatigue stress, characteristics sought after in intensive cycle or high-torque applications.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe mounting of transmission components — pulleys, sprockets, rigid or flexible coupling sleeves — is done directly on this shaft, without the need for an intermediate part. The machining precision and the choice of materials applied by Varvel ensure optimal mechanical performance throughout the reducer's lifespan.\u003c\/p\u003e\n\u003ch3 class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003e\u003cstrong\u003eMounting Options\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eTo meet the diversity of configurations encountered in the field, the \u003cstrong\u003eVarvel FRD12\u003c\/strong\u003e is available in two mounting versions. The \u003cstrong\u003eB3 foot mounting\u003c\/strong\u003e allows for stable installation on a chassis or metal support, bolted in a horizontal or vertical position as needed, with easy access for maintenance. The \u003cstrong\u003eflange mounting\u003c\/strong\u003e offers a compact solution for machines where floor space is limited, with direct mounting on the machine frame.\u003c\/p\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThis mounting flexibility makes the \u003cstrong\u003eFRD12\u003c\/strong\u003e equally relevant for new installations as for replacing an existing reducer, without extensive intervention on the existing structure.\u003c\/p\u003e\n\u003ch2 class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003e\u003cstrong\u003eEquivalents with Other Brands\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eVarvel FRD12 Ø25x50 mm\u003c\/strong\u003e can advantageously replace many coaxial gear reducers in the industrial park. Varvel's meticulous adherence to IEC standards — dimensions, shaft diameters, mounting centers — allows for direct substitution with models from brands such as \u003cstrong\u003eSEW-Eurodrive, Motovario, Bonfiglioli, Leroy-Somer, or STM\u003c\/strong\u003e, subject to verification of mechanical interfaces and the availability of the corresponding reduction ratio.\u003c\/p\u003e\n\u003ch2 class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003e\u003cstrong\u003eTechnical Conclusion\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp class=\"text-sm-400 overflow-wrap-anywhere mb-5 wrap-break-word last:mb-0\"\u003eThe \u003cstrong\u003eVarvel FRD12 Ø25x50 mm\u003c\/strong\u003e represents a reliable and versatile coaxial transmission solution, designed for medium to high torque industrial applications. The combination of its \u003cstrong\u003ereinforced Ø25x50 mm shaft\u003c\/strong\u003e, its \u003cstrong\u003e23 ratios up to 63\u003c\/strong\u003e, its IEC 56 to 90 B5 and B14 compatibility, and its two mounting modes makes it a complete, easy-to-integrate, and durable reducer. A concrete answer to the reliability and standardization requirements that characterize today's industry.\u003c\/p\u003e","brand":"Varvel","offers":[{"title":"Default Title","offer_id":53151554109776,"sku":"F RD12 Ø25","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-o25-x-50-mm","provider":"Dymatec Industries","version":"1.0","type":"link"}