{"product_id":"browning-1027960-single-groove-sheave-2-8in-od-5-8in-bore","title":"Browning 1027960 Single Groove Sheave 2.8in Od 5\/8in Bore","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1027960 is a finished bore single groove sheave designed for use with A-section or 4L-section V-belts in light- to medium-duty power transmission applications. It features a 2.8 inch outer diameter, a 5\/8 inch finished bore, and a cast iron construction that provides durability under continuous rotational load. The groove width is 13\/16 inches, and the overall length through the bore measures 1-1\/16 inches. With a pitch diameter of 2.2 inches for 4L or A-belt profiles, this sheave delivers consistent belt engagement and stable drive ratios. HVAC technicians and mechanical contractors install this component on blower assemblies, fan drives, and similar belt-driven systems.\u003c\/p\u003e\n\u003cp\u003eThis sheave is suited for residential and light commercial belt drive applications where a single V-belt groove is required. Typical installations include supply fan drives, exhaust fan assemblies, and small motor-to-blower drive trains. The finished bore eliminates on-site machining and accepts a standard 5\/8 inch shaft directly. It is commonly installed on fractional and small integral horsepower motors and driven shafts found in HVAC air handling equipment and general mechanical systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished 5\/8 inch bore — no machining required, mounts directly to standard shaft\u003c\/li\u003e\n  \u003cli\u003eSingle groove profile compatible with 4L and A-section V-belts\u003c\/li\u003e\n  \u003cli\u003e2.8 inch outer diameter with 2.2 inch pitch diameter for accurate belt ratio calculations\u003c\/li\u003e\n  \u003cli\u003e13\/16 inch groove width provides proper belt seating and alignment\u003c\/li\u003e\n  \u003cli\u003eCast iron construction resists wear and maintains dimensional stability under load\u003c\/li\u003e\n  \u003cli\u003eCompact 1-1\/16 inch through-bore length suits tight drive configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation single groove sheave for belt drive systems using 4L or A-section V-belts on 5\/8 inch shafts.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician or mechanical contractor. De-energize and lock out the motor before mounting or removing any sheave. Verify shaft diameter matches the 5\/8 inch finished bore and use a properly sized setscrew or key as required by the drive design. After installation, check belt tension and sheave alignment with a straightedge or laser alignment tool before returning the system to service.\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\u003eOuter Diameter (OD)\u003c\/strong\u003e: 2.8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (4L or A Belt)\u003c\/strong\u003e: 2.2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 5\/8 inch (finished)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 13\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Through Bore\u003c\/strong\u003e: 1-1\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Belt Sections\u003c\/strong\u003e: 4L, A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.85 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: 1027960\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51540395983154,"sku":"1027960","price":75.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5d96c9ede3590d79b1da60ee98d2c487.jpg?v=1785854173","url":"https:\/\/voomisupply.com\/products\/browning-1027960-single-groove-sheave-2-8in-od-5-8in-bore","provider":"Voomi Supply","version":"1.0","type":"link"}