{"product_id":"browning-1028398-single-groove-sheave-5in-od-cast-iron","title":"Browning 1028398 Single Groove Sheave 5in Od Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1028398 is a finished bore single groove sheave designed for V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. The sheave features a 3\/4 inch finished bore and a 5 inch outer diameter, with a belt pitch diameter of 4.0 inches for Type 4L or A belts and a B pitch diameter of 4.4 inches. The groove width through bore measures 1-5\/32 inches. Constructed from cast iron, this sheave delivers reliable durability in fixed-speed belt drive installations. Licensed HVAC technicians and mechanical contractors install this type of component when replacing or configuring blower and fan drive systems.\u003c\/p\u003e\n\u003cp\u003eThis sheave is suited for single V-belt drive configurations found in residential and light commercial HVAC air handlers, exhaust fans, and similar rotating equipment. It accepts standard Type 4L or A V-belts, making it compatible with the most common belt sizing used across fan and blower assemblies. The finished bore is ready for installation without additional machining, reducing downtime during service calls or equipment buildouts.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished bore at 3\/4 inch — no additional machining required\u003c\/li\u003e\n  \u003cli\u003e5 inch outer diameter with 4.0 inch pitch diameter for Type 4L or A belts\u003c\/li\u003e\n  \u003cli\u003eB pitch diameter of 4.4 inches for precise belt alignment\u003c\/li\u003e\n  \u003cli\u003eSingle groove design for straightforward single V-belt drive setups\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for durability in continuous-duty applications\u003c\/li\u003e\n  \u003cli\u003eOverall bore length of 1-5\/32 inches for solid 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 single V-belt drive systems using Type 4L or A belts with a 3\/4 inch bore shaft.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by an HVAC technician or mechanical contractor. Disconnect and lock out all electrical power to the equipment before removing or installing the sheave. Ensure the shaft and bore are clean and free of burrs before seating the sheave, and verify belt tension and alignment according to the equipment manufacturer's specifications after installation. Follow applicable OSHA guarding requirements for exposed rotating components.\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\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (Type 4L or A)\u003c\/strong\u003e: 4.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eB Pitch Diameter\u003c\/strong\u003e: 4.4 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\u003eGroove Width\u003c\/strong\u003e: 7\/8 inch\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: 1.95 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: 1028398\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51541520941362,"sku":"1028398","price":169.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6af8e836f01945c6caff5780a8557e78.jpg?v=1785878168","url":"https:\/\/voomisupply.com\/products\/browning-1028398-single-groove-sheave-5in-od-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}