{"product_id":"19mm-outer-diameter-x-25mm-length-4mm-x-6-35mm-inner-diameter-rb-aluminium-flexible-shaft-coupling","title":"19mm Outer Diameter x 25mm Length, 4mm x 6.35mm Inner Diameter RB Aluminium Flexible Shaft Coupling","description":"\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003e19mm Outer Diameter x 25mm Length, 4mm x 6.35mm Inner Diameter RB Aluminium Flexible Shaft Coupling\u003c\/span\u003e\u003c\/h2\u003e\nThe \u003cstrong\u003eRB Aluminium Flexible Shaft Coupling\u003c\/strong\u003e is a compact shaft connector made for joining \u003cstrong\u003e4mm and 6.35mm shafts\u003c\/strong\u003e in systems that require smooth and stable rotation. With a \u003cstrong\u003e19mm outside diameter\u003c\/strong\u003e and \u003cstrong\u003e25mm body length\u003c\/strong\u003e, it is ideal for compact assemblies where precise shaft connection is important. Its \u003cstrong\u003espiral beam cut design\u003c\/strong\u003e gives the coupling enough flexibility to accommodate slight shaft misalignment while maintaining efficient torque transfer.\u003cbr\u003e\u003cbr\u003eBuilt from strong \u003cstrong\u003ealuminium\u003c\/strong\u003e, this \u003cstrong\u003esingle-piece flexible coupling\u003c\/strong\u003e is suitable for applications requiring \u003cstrong\u003elow backlash\u003c\/strong\u003e, \u003cstrong\u003ereduced vibration\u003c\/strong\u003e, and \u003cstrong\u003econsistent rotational performance\u003c\/strong\u003e. It can be used in \u003cstrong\u003eautomation equipment\u003c\/strong\u003e, \u003cstrong\u003eDIY machinery\u003c\/strong\u003e, \u003cstrong\u003e3D motion systems\u003c\/strong\u003e, and \u003cstrong\u003elight mechanical drive setups\u003c\/strong\u003e where dependable shaft coupling is needed.\n\u003c\/div\u003e\n\n\u003cdiv class=\"product_info\"\u003e\n\u003cdiv style=\"text-align: center;\" class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eDrawing\u003c\/h3\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" alt=\"Drawing\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/drawing_f4ac5215-9b1b-4de9-964e-f5f35ad0b180.webp?v=1775035345\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eMain Features\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eFlexible spiral structure helps reduce stress from minor shaft offset\u003c\/li\u003e\n\u003cli\u003eCompact size suitable for small and medium mechanical assemblies\u003c\/li\u003e\n\u003cli\u003eOne-piece aluminium body offers durable performance\u003c\/li\u003e\n\u003cli\u003eSupports smooth torque transmission with low backlash effect\u003c\/li\u003e\n\u003cli\u003eHelical beam design helps limit binding during shaft rotation\u003c\/li\u003e\n\u003cli\u003eSuitable for precision-oriented shaft connection tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eCommon Uses\u003c\/h3\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eStepper motor to shaft coupling\u003c\/li\u003e\n\u003cli\u003eSmall CNC and engraving machines\u003c\/li\u003e\n\u003cli\u003e3D printer transmission assemblies\u003c\/li\u003e\n\u003cli\u003eRobotics and motion control mechanisms\u003c\/li\u003e\n\u003cli\u003eEncoder and motor interconnection\u003c\/li\u003e\n\u003cli\u003ePrototype and DIY engineering projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eTechnical Details\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eCoupling Type: Flexible Shaft Coupling\u003c\/li\u003e\n\u003cli\u003eSeries: RB\u003c\/li\u003e\n\u003cli\u003eBody Material: Aluminium\u003c\/li\u003e\n\u003cli\u003eOuter Diameter: 19mm\u003c\/li\u003e\n\u003cli\u003eOverall Length: 25mm\u003c\/li\u003e\n\u003cli\u003eBore Diameter Side A: 4mm\u003c\/li\u003e\n\u003cli\u003eBore Diameter Side B: 6.35mm\u003c\/li\u003e\n\u003cli\u003eBore Configuration: 4mm x 6.35mm\u003c\/li\u003e\n\u003cli\u003eGrub Screws: 2 x M3\u003c\/li\u003e\n\u003cli\u003eBody Style: One Piece\u003c\/li\u003e\n\u003cli\u003eBacklash Type: Zero Backlash\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePhysical Attributes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eWeight: 16g\u003c\/li\u003e\n\u003cli\u003eDimensions: 19mm x 25mm\u003c\/li\u003e\n\u003cli\u003eBore Diameter (Both Sides): 4mm x 6.35mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003e1 × RB Aluminium Flexible Shaft Coupling 4mm x 6.35mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"Default Title","offer_id":48908124193020,"sku":"LGSTM087","price":149.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/4mmx6.35mmshaftcoupling.jpg?v=1775112531","url":"https:\/\/kitsguru.com\/products\/19mm-outer-diameter-x-25mm-length-4mm-x-6-35mm-inner-diameter-rb-aluminium-flexible-shaft-coupling","provider":"KitsGuru","version":"1.0","type":"link"}