{"product_id":"browning-1026533-single-groove-sheave-5-8-bore-4-45-od","title":"Browning 1026533 Single Groove Sheave 5\/8 Bore 4.45 Od","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1026533 is a finished bore single groove sheave designed for V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. This cast iron pulley features a 5\/8 inch finished bore and a 4.45 inch outer diameter, making it a direct-fit component for standard A-section and B-section belt configurations. At 1.7 pounds, it delivers the mass and rigidity needed for reliable torque transfer in blower and fan drive setups. Licensed HVAC technicians and mechanical contractors typically install this sheave during motor or blower shaft replacement or drive system reconfiguration.\u003c\/p\u003e\n\u003cp\u003eThis sheave is suited for residential and light commercial HVAC blower assemblies, exhaust fans, and general power transmission equipment where a single groove V-belt drive is specified. The 4.45 inch OD accommodates belt pitch diameters of 4.2 inches for 4L or A-type belts and 3.86 inches for 3L-type belts, allowing flexibility across common belt cross-sections used in air-handling equipment. The 3\/4 inch groove width and finished bore allow direct installation onto a 5\/8 inch shaft without further machining.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished bore: 5\/8 inch — ready for direct shaft installation with no additional machining\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for rigidity and long service life in belt drive applications\u003c\/li\u003e\n  \u003cli\u003eSingle groove design accepts A-section, B-section, 3L, and 4L V-belts\u003c\/li\u003e\n  \u003cli\u003e4.45 inch OD with a belt pitch diameter of 4.2 inches for 4L or A-type belts\u003c\/li\u003e\n  \u003cli\u003e3L belt pitch diameter of 3.86 inches for compatibility with lighter duty belt profiles\u003c\/li\u003e\n  \u003cli\u003eOverall bore length of 1-5\/32 inches provides secure shaft engagement\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 V-belt drive systems using 3L, 4L, or A-section 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 millwright. Disconnect and lock out all electrical power to the unit before removing the existing sheave or belt. Verify shaft diameter and keyway dimensions before mounting. Proper belt tension and sheave alignment are critical to belt life and bearing load — use a straightedge or laser alignment tool across both sheave faces after installation.\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: 5\/8 inch (finished)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter (OD)\u003c\/strong\u003e: 4.45 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (4L or A-type)\u003c\/strong\u003e: 4.2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (3L-type)\u003c\/strong\u003e: 3.86 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\u003eOverall Length Through Bore\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: 1.7 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: 1026533\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51544541200690,"sku":"1026533","price":112.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b0b3317da5cad8f9b61eac6d376d0311.jpg?v=1785929291","url":"https:\/\/voomisupply.com\/products\/browning-1026533-single-groove-sheave-5-8-bore-4-45-od","provider":"Voomi Supply","version":"1.0","type":"link"}