{"product_id":"tb-woods-tb-9s218-sure-flex-coupling-flange-size-9","title":"Tb Woods TB-9S218 Sure-flex Coupling Flange Size 9","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe TB WOODS TB-9S218 is a Sure-Flex sleeve coupling flange designed for industrial power transmission applications. This Size 9 flange hub connects rotating shafts by mating with a flexible sleeve element to dampen shock loads and accommodate minor misalignment. Manufactured from cast iron, it features a round keyed bore of 2.125 inches and a length through bore of 2.406 inches. Maximum rated speed is 3,750 RPM and maximum torque capacity is 2,340 inch-pounds. Licensed HVAC, mechanical, and industrial technicians routinely spec this style of coupling in motor-to-load drive trains.\u003c\/p\u003e\n\u003cp\u003eThis flange hub is suited for use in a wide range of industrial and commercial drive applications. Common installations include compressors, conveyors, motors, and pumps where flexible coupling is required to protect connected equipment from vibration and torsional shock. The Sure-Flex design is a widely used flange-and-sleeve system in both new construction and replacement service across light and heavy industrial settings. No bushing is required for this bore configuration.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSize 9 flange hub rated to 3,750 RPM maximum speed\u003c\/li\u003e\n  \u003cli\u003eMaximum torque rating of 2,340 inch-pounds\u003c\/li\u003e\n  \u003cli\u003eRound keyed bore diameter of 2.125 inches with close bore tolerance of plus 0.0005 to plus 0.0020 inches\u003c\/li\u003e\n  \u003cli\u003eCast iron hub construction for durability in industrial environments\u003c\/li\u003e\n  \u003cli\u003eOutside diameter of 6.344 inches and hub diameter of 3.625 inches\u003c\/li\u003e\n  \u003cli\u003eFlange hub type — pairs with a Sure-Flex sleeve element, no bushing required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style Sure-Flex replacement flange hub for Size 9 sleeve coupling assemblies used in compressor, conveyor, motor, and pump drive trains requiring a 2.125-inch round keyed bore.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified mechanical or industrial technician. Disconnect and lock out all power to the drive system before disassembling the existing coupling. Verify shaft and keyway dimensions against bore and tolerance specifications before pressing the hub onto the shaft. Ensure the mating sleeve element and opposing flange hub are inspected or replaced at the same service interval to maintain balanced coupling performance.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoupling Size\u003c\/strong\u003e: 9\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHub Type\u003c\/strong\u003e: Flange Hub\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Speed\u003c\/strong\u003e: 3,750 RPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Torque\u003c\/strong\u003e: 2,340 inch-pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Type\u003c\/strong\u003e: Round Keyed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Tolerance\u003c\/strong\u003e: plus 0.0005 inches \/ plus 0.0020 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 6.344 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHub Diameter\u003c\/strong\u003e: 3.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Through Bore\u003c\/strong\u003e: 2.406 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHub Body Length\u003c\/strong\u003e: 0.781 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHub Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: Mexico\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: TB WOODS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: TB-9S218\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TB WOODS","offers":[{"title":"Default Title","offer_id":51383288889650,"sku":"TB-9S218","price":154.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312670135.jpg?v=1782592288","url":"https:\/\/voomisupply.com\/products\/tb-woods-tb-9s218-sure-flex-coupling-flange-size-9","provider":"Voomi Supply","version":"1.0","type":"link"}