{"product_id":"browning-1028406-single-groove-sheave-4-3-4-in-od","title":"Browning 1028406 Single Groove Sheave 4-3\/4 in Od","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1028406 is a finished bore single groove sheave designed for use in belt-drive power transmission systems. Machined from cast iron, this sheave features a 7\/8 inch bore diameter and a 4-3\/4 inch outside diameter, with an overall length through the bore of 1-5\/32 inches. It is compatible with 4L and A series V-belts, providing a reliable drive interface for fans, blowers, and other rotating equipment common in HVAC and industrial applications. Finished bore construction means the bore is ready for direct shaft installation without additional machining.\u003c\/p\u003e\n\u003cp\u003eThis sheave is suited for residential and light commercial HVAC applications where a single-groove belt drive connects a motor to a fan or blower assembly. It is also used in general industrial power transmission setups requiring a compact, single-groove configuration. The 4-3\/4 inch OD and A or 4L belt compatibility make it a common replacement component in belt-drive air handling units and similar equipment. Licensed HVAC technicians and millwrights typically handle this replacement as part of scheduled maintenance or belt-drive service.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished bore ready for direct shaft installation at 7\/8 inch bore diameter\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for durability in belt-drive applications\u003c\/li\u003e\n  \u003cli\u003eSingle groove design compatible with 4L and A series V-belts\u003c\/li\u003e\n  \u003cli\u003e4-3\/4 inch outside diameter with a 4.0 inch pitch diameter for A and 4L belt types\u003c\/li\u003e\n  \u003cli\u003eOverall length through bore of 1-5\/32 inches for compact installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement single groove sheave compatible with 4L and A series V-belts in belt-drive power transmission systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed HVAC technician or millwright. De-energize and lock out the equipment at the disconnect before beginning any belt-drive service. Ensure the shaft diameter matches the 7\/8 inch finished bore before installation, and verify proper sheave alignment with a straightedge to minimize belt wear. Consult applicable mechanical codes and equipment manufacturer documentation for torque and alignment specifications.\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: 4-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (4L or A Belt)\u003c\/strong\u003e: 4.0 inches\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\u003eBore Type\u003c\/strong\u003e: Finished Bore\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.95 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: 1028406\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51542855385394,"sku":"1028406","price":125.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/29caa5f6ddb744b346157b8b43fb2b80_f8561d68-c0f2-4e06-8cb5-fe8ce3830a91.jpg?v=1785909175","url":"https:\/\/voomisupply.com\/products\/browning-1028406-single-groove-sheave-4-3-4-in-od","provider":"Voomi Supply","version":"1.0","type":"link"}