{"product_id":"browning-1026863-single-groove-sheave-5-3-4-in-od","title":"Browning 1026863 Single Groove Sheave 5-3\/4 in Od","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1026863 is a finished bore single groove sheave designed for use in belt-drive power transmission systems. Cast from iron for durability, it features a 7\/8 inch bore diameter and a 5-3\/4 inch outside diameter. The groove is machined to accept 4L or A-series and 3L-series V-belts, making it a straightforward drop-in component for HVAC blower assemblies, fan drives, and general industrial belt-drive setups. Installed by HVAC technicians and mechanical contractors, this sheave is a standard replacement or new-installation component for fixed-speed single-belt drive configurations.\u003c\/p\u003e\n\u003cp\u003eThis sheave is suited for residential and light commercial applications where a single-groove, fixed-bore drive pulley is required. Typical installation scenarios include supply and exhaust fan drives, blower wheel assemblies, and other belt-driven mechanical equipment. The finished bore eliminates field machining, allowing direct shaft mounting to a 7\/8 inch shaft. No bushing is required for standard installations using this bore size.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished 7\/8 inch bore — ready for direct shaft mounting with no additional machining\u003c\/li\u003e\n  \u003cli\u003e5-3\/4 inch outside diameter with a 5.5 inch pitch diameter for 4L or A-series belts\u003c\/li\u003e\n  \u003cli\u003eCompatible with 3L-series belts at a 5.16 inch pitch diameter\u003c\/li\u003e\n  \u003cli\u003eSingle groove configuration for straightforward single-belt drive setups\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003eBore length through hub of approximately 1-5\/32 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation sheave for single-belt drive systems using 4L, A-series, or 3L-series V-belts on a 7\/8 inch diameter shaft.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all power to the unit before removing or installing any drive components. Secure the sheave to the shaft using the appropriate set screw and key, ensuring proper alignment with the mating sheave before tensioning the belt. Check belt tension and sheave alignment after installation and re-inspect after initial run-in per standard drive maintenance practice.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSheave Type\u003c\/strong\u003e: Single Groove\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 7\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 5-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (4L or A Belt)\u003c\/strong\u003e: 5.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (3L Belt)\u003c\/strong\u003e: 5.16 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\u003eBore Length Through Hub\u003c\/strong\u003e: 1-5\/32 inches\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: 2.14 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: 1026863\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51542930620722,"sku":"1026863","price":103.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/29caa5f6ddb744b346157b8b43fb2b80_144532d6-6058-4d48-9700-cdc33c4e7a23.jpg?v=1785911362","url":"https:\/\/voomisupply.com\/products\/browning-1026863-single-groove-sheave-5-3-4-in-od","provider":"Voomi Supply","version":"1.0","type":"link"}