{"product_id":"browning-1025931-single-groove-sheave-0-75-in-bore-cast-iron","title":"Browning 1025931 Single Groove Sheave 0.75 in Bore Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1025931 is a finished bore single groove sheave designed for V-belt drive applications in HVAC, industrial, and mechanical systems. Cast from iron, this sheave features a 0.75-inch bore diameter and a 2.2-inch outer diameter, making it a compact, durable component suited for light-duty to medium-duty belt drive setups. The groove accepts standard B-section or A-section belts with a pitch diameter of 2.0 inches, and also accommodates 3L-section belts with a 1.66-inch pitch diameter. The finished bore eliminates the need for additional machining, allowing direct installation onto a shaft. HVAC technicians, millwrights, and mechanical contractors typically install this component during blower and fan drive assemblies.\u003c\/p\u003e\n\u003cp\u003eThis sheave is used in single-belt drive configurations found in residential and light commercial HVAC blower assemblies, ventilation fans, and small mechanical power transmission setups. Its compact outer diameter and standard bore sizing make it a common replacement or upgrade component when rebuilding fan drive systems. The 0.75-inch finished bore fits standard shaft sizes commonly encountered in these applications. The overall length through bore is 15\/16 inch, and the groove width is 21\/32 inch, confirming fitment with standard A, B, and 4L belt profiles.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished bore at 0.75 inches — no additional machining required for installation\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for durability in belt drive environments\u003c\/li\u003e\n  \u003cli\u003eSingle groove accepts A-section, B-section, and 4L V-belts\u003c\/li\u003e\n  \u003cli\u003eBelt pitch diameter of 2.0 inches for A and 4L belt types\u003c\/li\u003e\n  \u003cli\u003eBelt pitch diameter of 1.66 inches for 3L belt type\u003c\/li\u003e\n  \u003cli\u003eGroove width of 21\/32 inch matches standard V-belt profiles\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 V-belt drive systems using A-section, B-section, 4L, or 3L belts with a 0.75-inch shaft bore.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a licensed HVAC technician or qualified millwright. Disconnect and lock out all electrical power to the equipment before removing the existing sheave or belt. Use a standard sheave or gear puller to remove the old component without damaging the shaft. Verify shaft diameter, belt section, and center-to-center distance before final installation to ensure proper belt tension and alignment.\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: 0.75 inches (finished)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 2.2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (A \/ 4L)\u003c\/strong\u003e: 2.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch Diameter (3L)\u003c\/strong\u003e: 1.66 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove Width\u003c\/strong\u003e: 21\/32 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length Through Bore\u003c\/strong\u003e: 15\/16 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: 0.45 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: 1025931\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51540828487986,"sku":"1025931","price":68.06,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2a026e87f033230c8f54d86accd41f1b.jpg?v=1785864380","url":"https:\/\/voomisupply.com\/products\/browning-1025931-single-groove-sheave-0-75-in-bore-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}