{"product_id":"browning-1027663-single-groove-sheave-1-in-bore-cast-iron","title":"Browning 1027663 Single Groove Sheave 1 in Bore Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1027663 is a finished bore single groove sheave designed for V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. Built from cast iron, this sheave features a 1 inch bore diameter and a 14-1\/4 inch outer diameter, making it suited for larger fan and blower drive assemblies. The groove width measures 3\/4 inch. With a pitch diameter of 14.0 inches for 4L or A-type belts and 13.66 inches for 3L-type belts, the 1027663 delivers consistent belt engagement and reliable torque transfer. Licensed HVAC technicians, millwrights, and mechanical contractors are the typical installers for this component.\u003c\/p\u003e\n\u003cp\u003eThis sheave is used in belt-driven blower and fan systems found in commercial and residential HVAC equipment, as well as general industrial power transmission setups. The finished bore means the hub is machined to final dimension at the factory, reducing installation time in the field. The 14-1\/4 inch OD and single groove configuration make it a common choice for direct replacement in large-diameter drive arrangements where a single V-belt is specified. The overall length through the bore measures 1-15\/32 inches.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished bore at 1 inch — no additional machining required at installation\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for durability and dimensional stability under load\u003c\/li\u003e\n  \u003cli\u003eSingle groove design accepts standard 3L, 4L, and A-type V-belts\u003c\/li\u003e\n  \u003cli\u003ePitch diameter of 14.0 inches for 4L or A-type belts; 13.66 inches for 3L-type belts\u003c\/li\u003e\n  \u003cli\u003e14-1\/4 inch outer diameter suits large fan and blower drive applications\u003c\/li\u003e\n  \u003cli\u003eFactory-finished bore reduces field prep time and ensures precise fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement single groove sheave for belt-driven fan and blower assemblies using 3L, 4L, or A-type V-belts with a 1 inch shaft bore.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician or millwright. Always de-energize and lock out the drive system before removing or installing sheaves. Verify shaft diameter matches the 1 inch finished bore before mounting, and ensure proper belt tension and sheave alignment after installation to prevent premature belt or bearing wear. Consult applicable mechanical and electrical codes for lockout\/tagout procedures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 14-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (4L or A Belt)\u003c\/strong\u003e: 14.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (3L Belt)\u003c\/strong\u003e: 13.66 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Through Bore\u003c\/strong\u003e: 1-15\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSheave Type\u003c\/strong\u003e: Single Groove\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Type\u003c\/strong\u003e: Finished Bore\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: 8.16 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31171804\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: BROWNING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1027663\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51540265107762,"sku":"1027663","price":726.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/29caa5f6ddb744b346157b8b43fb2b80_326049ab-1341-4624-ba5a-1951ba55eb85.jpg?v=1785850689","url":"https:\/\/voomisupply.com\/products\/browning-1027663-single-groove-sheave-1-in-bore-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}