{"product_id":"browning-1026129-single-groove-sheave-2-8in-od-cast-iron","title":"Browning 1026129 Single Groove Sheave 2.8in Od Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1026129 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 0.5 inch finished bore and a 2.8 inch outer diameter, with a belt groove machined to a 3 inch pitch diameter for standard B-section or A-section belts, and a 2.6 inch pitch diameter for 4L or A-type belt configurations. Constructed from cast iron, it delivers reliable wear resistance and dimensional stability under continuous load. The overall bore length through the hub measures 15\/16 inches. The part weighs 0.75 pounds and is sized for single belt drive arrangements. Licensed HVAC technicians and millwrights commonly install this sheave in blower and fan drive assemblies.\u003c\/p\u003e\n\u003cp\u003eThis sheave is suited for residential and light commercial HVAC blower sections, exhaust fans, and general-purpose belt drive setups requiring a compact, single groove pulley. The 21\/32 inch groove width accommodates standard A or 4L cross-section belts. Its finished bore accepts a 0.5 inch shaft directly without additional machining. It is a common replacement component in air handling units, furnace blower assemblies, and ventilation fan drives where a B or A-section single groove drive is specified.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished 0.5 inch bore — ready to install on a standard 0.5 inch shaft with no additional machining\u003c\/li\u003e\n  \u003cli\u003e2.8 inch outer diameter with 3 inch pitch diameter for B or A-section belts\u003c\/li\u003e\n  \u003cli\u003eCompatible with 4L or A-type belts at 2.6 inch pitch diameter and 3L belts at 2.26 inch pitch diameter\u003c\/li\u003e\n  \u003cli\u003e21\/32 inch groove width sized for standard V-belt cross sections\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for dimensional stability and wear resistance\u003c\/li\u003e\n  \u003cli\u003eCompact single groove design suited for space-constrained blower and fan drive applications\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 residential and light commercial belt drive systems using standard A-section, B-section, 4L, or 3L V-belts on a 0.5 inch shaft.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed HVAC technician or qualified mechanic. Disconnect and lock out all electrical power to the unit before removing or installing any belt drive components. Verify shaft diameter and keyway dimensions match the sheave bore before pressing or securing the sheave. Check belt tension and alignment per the drive manufacturer specifications after installation to prevent premature belt or bearing wear.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 2.8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (B\/A Section)\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (4L or A Belt)\u003c\/strong\u003e: 2.6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (3L Belt)\u003c\/strong\u003e: 2.26 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 21\/32 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Through Bore\u003c\/strong\u003e: 15\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSheave Type\u003c\/strong\u003e: Single Groove\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Type\u003c\/strong\u003e: Finished Bore\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: 0.75 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: 1026129\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51540951367986,"sku":"1026129","price":79.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dc4735dceaa8bc9e8ae59de346ec4caf.jpg?v=1785866345","url":"https:\/\/voomisupply.com\/products\/browning-1026129-single-groove-sheave-2-8in-od-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}