{"product_id":"browning-1033471-two-groove-cast-iron-sheave-1-inch-bore","title":"Browning 1033471 Two Groove Cast Iron Sheave 1 Inch Bore","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1033471 is a two-groove, finished-bore cast iron sheave designed for use in V-belt drive systems common to HVAC, industrial, and mechanical power transmission applications. The sheave features a 1 inch finished bore diameter and a 4.25 inch outer diameter, with a belt pitch B diameter of 3.9 inches and a pitch diameter for 4L or A-type belts of 3.5 inches. Machined from cast iron for durability and dimensional stability, this sheave is sized for straightforward installation without additional boring or machining. It is typically installed by HVAC technicians or millwrights maintaining fan and blower drive assemblies.\u003c\/p\u003e\n\u003cp\u003eThis sheave is suited for residential and light commercial HVAC applications, particularly in belt-driven blower and fan assemblies where A-type or 4L-type V-belts are used. The finished bore and dual-groove configuration make it appropriate for direct replacement in standard two-belt drive setups. Installation typically involves pairing with a matching sheave and properly tensioned V-belts to maintain correct fan or blower speed ratios.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo-groove configuration supports dual V-belt drive setups\u003c\/li\u003e\n  \u003cli\u003eFinished 1 inch bore diameter — no additional machining required\u003c\/li\u003e\n  \u003cli\u003e4.25 inch outer diameter with 3.9 inch belt pitch B diameter\u003c\/li\u003e\n  \u003cli\u003eCompatible with 4L-type and A-type V-belts at 3.5 inch pitch diameter\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for rigidity and long service life in belt drive applications\u003c\/li\u003e\n  \u003cli\u003eOverall bore length of 1-15\/32 inches for proper shaft engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement sheave for belt-driven blower and fan assemblies using A-type or 4L-type V-belts in residential and commercial HVAC and power transmission systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician or millwright. Shut down and lock out all power to the drive system before removing or installing the sheave. Ensure the bore is fully seated on the shaft and secure with the appropriate bushing or set screw to manufacturer specifications. After installation, verify belt tension and sheave alignment 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: Two Groove Sheave\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 1 inch (finished)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 4.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch B Diameter\u003c\/strong\u003e: 3.9 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (4L or A Belt)\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Through Bore\u003c\/strong\u003e: 1-15\/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: 3.65 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: 1033471\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51544089690418,"sku":"1033471","price":405.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/29caa5f6ddb744b346157b8b43fb2b80_8ccacddf-b34b-47e9-927d-7d36794917aa.jpg?v=1785923943","url":"https:\/\/voomisupply.com\/products\/browning-1033471-two-groove-cast-iron-sheave-1-inch-bore","provider":"Voomi Supply","version":"1.0","type":"link"}