{"product_id":"browning-1028463-single-groove-sheave-3-4-bore-4-95-od","title":"Browning 1028463 Single Groove Sheave 3\/4 Bore 4.95 Od","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BROWNING 1028463 is a finished bore single groove sheave designed for V-belt drive applications in HVAC, industrial, and mechanical systems. Cast from iron for durability, this sheave features a 3\/4 inch finished bore and a 4.95 inch outside diameter. The pitch diameter for 4L or A-type belts is 4.2 inches, and the overall length through the bore measures 1-5\/32 inches. It is installed by HVAC technicians and mechanical contractors on blower assemblies, fan drives, and belt-driven equipment where precise belt alignment and consistent power transfer are required.\u003c\/p\u003e\u003cp\u003eThis sheave is suited for residential and light commercial HVAC blower systems, exhaust fans, and general-purpose belt drive assemblies. It accepts standard A-section or 4L V-belts and is sized for applications requiring a 3\/4 inch shaft. The finished bore means no additional machining is required before installation, making it a direct drop-in for service and replacement work on belt-driven fan and blower units.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFinished 3\/4 inch bore — no additional machining required\u003c\/li\u003e\n\u003cli\u003e4.95 inch outside diameter with 4.2 inch pitch diameter for 4L or A-type belts\u003c\/li\u003e\n\u003cli\u003eSingle groove design for single V-belt drive configurations\u003c\/li\u003e\n\u003cli\u003eCast iron construction for wear resistance and dimensional stability\u003c\/li\u003e\n\u003cli\u003eGroove width of 7\/8 inch for proper belt seating\u003c\/li\u003e\n\u003cli\u003eOverall bore length of 1-5\/32 inches for secure shaft engagement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement sheave for single V-belt drive systems using 4L or A-section belts on 3\/4 inch shafts.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all power to the equipment before removing or installing drive components. Ensure the sheave is properly aligned with the mating pulley before tensioning the belt to prevent premature wear. Follow applicable OSHA and equipment manufacturer guidelines for belt drive service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 4.95 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch Diameter (4L or A Belt)\u003c\/strong\u003e: 4.2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 7\/8 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\u003eSheave Type\u003c\/strong\u003e: Single Groove\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: 2.15 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31171804\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 1028463\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51538841895218,"sku":"1028463","price":153.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/29caa5f6ddb744b346157b8b43fb2b80_d2b240ca-e18b-4508-9bcd-c10abbaf4ca2.jpg?v=1785828074","url":"https:\/\/voomisupply.com\/products\/browning-1028463-single-groove-sheave-3-4-bore-4-95-od","provider":"Voomi Supply","version":"1.0","type":"link"}