{"product_id":"lovejoy-68514436165-flexible-coupling-hub-2-1-8-in-bore","title":"Lovejoy 68514436165 Flexible Coupling Hub 2-1\/8 in Bore","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe LOVEJOY 68514436165 is a cast iron flexible coupling hub designed for power transmission applications requiring a durable, high-torque connection between shafts and driven equipment. With a maximum bore diameter of 2-1\/8 inches and a keyway measuring 1\/2 inch wide by 1\/4 inch deep, this hub accommodates a standard keyed shaft connection. The outer diameter measures 6.35 inches and the overall length is 5.06 inches. Rated to 3750 RPM, it is suited for moderate- to high-speed mechanical drive systems. HVAC, pump, and industrial equipment technicians install this type of coupling hub when connecting motors, compressors, or blowers to driven loads.\u003c\/p\u003e\u003cp\u003eThis flexible coupling hub is used in mechanical power transmission systems found in commercial HVAC equipment, pump stations, and industrial drive assemblies. It is appropriate for applications where shaft misalignment or vibration damping between driver and driven components is required. The coupling size code is 9S. Cast iron construction makes it a practical choice for indoor mechanical rooms and equipment rooms where corrosion exposure is limited. Installation is typically performed by millwrights, HVAC mechanics, or industrial maintenance technicians.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMaximum bore diameter of 2-1\/8 inches for keyed shaft fitment\u003c\/li\u003e\n\u003cli\u003eKeyway dimensions: 1\/2 inch wide by 1\/4 inch deep for standard key stock\u003c\/li\u003e\n\u003cli\u003e6.35 inch outer diameter and 5.06 inch overall length\u003c\/li\u003e\n\u003cli\u003eRated to 3750 RPM for moderate- to high-speed drive applications\u003c\/li\u003e\n\u003cli\u003eCast iron construction for durability in mechanical drive environments\u003c\/li\u003e\n\u003cli\u003eCoupling size code 9S for cross-reference and replacement selection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit flexible coupling hub for mechanical drive assemblies using a size 9S coupling with a maximum 2-1\/8 inch bore and standard 1\/2 inch by 1\/4 inch keyway.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified millwright or mechanical technician. De-energize and lock out the motor or driver unit completely before removing the existing coupling hub. Ensure shaft and bore surfaces are clean and free of burrs before pressing or fitting the hub. Verify shaft alignment after installation to avoid premature coupling wear or failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bore Diameter\u003c\/strong\u003e: 2-1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeyway Width x Depth\u003c\/strong\u003e: 1\/2 inch x 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter (OD)\u003c\/strong\u003e: 6.35 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 5.06 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 3750 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoupling Size Code\u003c\/strong\u003e: 9S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.61 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: LOVEJOY\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 68514436165\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LOVEJOY","offers":[{"title":"Default Title","offer_id":51539300679986,"sku":"68514436165","price":150.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a9cbb4a06a7c7cb241cba57ec44196d0_345f64c1-28f4-4c33-87a5-9ff02f6ac95d.jpg?v=1785838067","url":"https:\/\/voomisupply.com\/products\/lovejoy-68514436165-flexible-coupling-hub-2-1-8-in-bore","provider":"Voomi Supply","version":"1.0","type":"link"}