{"product_id":"browning-1026020-single-groove-sheave-0-75-in-bore-cast-iron","title":"Browning 1026020 Single Groove Sheave 0.75 in Bore Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BROWNING 1026020 is a finished bore single groove sheave designed for V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. Machined from cast iron, this sheave features a 0.75-inch finished bore and a 2.5-inch outer diameter. The groove is 0.656 inches wide, sized to accept standard 3L, 4L, or A-section V-belts. With a belt pitch diameter of 2.3 inches for 4L and A-type belts and 1.96 inches for 3L belts, it delivers accurate speed ratio performance in blower and fan drive assemblies. The finished bore requires no additional machining before installation.\u003c\/p\u003e\u003cp\u003eThis sheave is suited for use in residential and light commercial HVAC blower assemblies, exhaust fans, and general-purpose belt drive systems. It is a direct-mount component where a compact, single-groove pulley is required at the motor or driven shaft. The 0.75-inch bore fits standard fractional horsepower motor shaft sizes common in air handling units and ventilation equipment. Licensed HVAC technicians and millwrights typically install this component during motor replacements, drive upgrades, or scheduled belt drive maintenance.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFinished bore at 0.75 inches — no machining required prior to installation\u003c\/li\u003e\n\u003cli\u003eSingle groove design accepts 3L, 4L, and A-section V-belts\u003c\/li\u003e\n\u003cli\u003eCast iron construction for durability in continuous-duty drive applications\u003c\/li\u003e\n\u003cli\u003e2.5-inch outer diameter with 2.3-inch pitch diameter for 4L and A-type belts\u003c\/li\u003e\n\u003cli\u003e1.96-inch pitch diameter for 3L belt type\u003c\/li\u003e\n\u003cli\u003eGroove width of 0.656 inches for proper belt seating and alignment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or upgrade sheave for fractional horsepower belt drive systems using 3L, 4L, or A-section V-belts with a 0.75-inch shaft.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by an HVAC technician or millwright. Disconnect and lock out power to the motor before removing or installing any drive components. Ensure the sheave is aligned with the mating pulley using a straightedge or laser alignment tool before tensioning the belt. Verify set screw engagement on the keyway or shaft flat and confirm belt tension per the belt manufacturer guidelines before returning the system to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 0.656 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (4L and A)\u003c\/strong\u003e: 2.3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (3L)\u003c\/strong\u003e: 1.96 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length Through Bore\u003c\/strong\u003e: 0.9375 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: 0.5 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: 1026020\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51540313276722,"sku":"1026020","price":56.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/85f8ffcb0b5aa9d99e3938302496f383.jpg?v=1785851918","url":"https:\/\/voomisupply.com\/products\/browning-1026020-single-groove-sheave-0-75-in-bore-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}