{"product_id":"browning-1027150-single-groove-sheave-1-in-bore-cast-iron","title":"Browning 1027150 Single Groove Sheave 1 in Bore Cast Iron","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BROWNING 1027150 is a finished bore single groove sheave designed for V-belt drive systems in HVAC, industrial, and mechanical power transmission applications. Cast from iron for durability, this sheave features a 1-inch finished bore and a 7-1\/4-inch outer diameter with a belt pitch B diameter of 7.4 inches. The groove accepts standard A or 4L belt profiles with a 7.0-inch pitch diameter, and also accommodates 3L belt profiles at a 6.66-inch pitch diameter. The overall length through bore measures 1-15\/32 inches and the face width is 3\/4 inch. Installation is handled by HVAC technicians, millwrights, or mechanical contractors in belt-drive fan and blower assemblies.\u003c\/p\u003e\n\u003cp\u003eThis sheave fits standard V-belt drive configurations found in residential and light commercial HVAC fan systems, blower assemblies, and general-purpose power transmission setups. It is suited for applications requiring a single-groove, fixed-bore drive component where precise belt alignment and consistent pulley geometry are critical to system efficiency and belt life. The finished bore eliminates the need for secondary machining before installation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFinished 1-inch bore — ready to install without additional machining\u003c\/li\u003e\n  \u003cli\u003eSingle groove design accepts A, 4L, and 3L V-belt profiles\u003c\/li\u003e\n  \u003cli\u003e7.4-inch belt pitch B diameter for accurate drive ratio calculation\u003c\/li\u003e\n  \u003cli\u003eCast iron construction for wear resistance and dimensional stability\u003c\/li\u003e\n  \u003cli\u003e3\/4-inch groove face width for positive belt engagement\u003c\/li\u003e\n  \u003cli\u003eOverall bore length of 1-15\/32 inches for sufficient shaft engagement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a finished bore single groove sheave for standard V-belt drive systems using A, 4L, or 3L cross-section belts. Confirm shaft diameter and belt profile before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified HVAC technicians or mechanical trades with the system fully de-energized and locked out per applicable OSHA lockout\/tagout procedures. The sheave should be positioned on the shaft to align with the mating pulley to prevent belt tracking issues and premature wear. Use a straightedge or laser alignment tool to verify pulley alignment before tensioning the belt. Do not force the sheave onto an undersized shaft — verify bore and shaft tolerance before assembly.\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 Sheave\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore Diameter\u003c\/strong\u003e: 1 inch (finished bore)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter Diameter\u003c\/strong\u003e: 7-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Pitch B Diameter\u003c\/strong\u003e: 7.4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (A \/ 4L Belt)\u003c\/strong\u003e: 7.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePitch Diameter (3L Belt)\u003c\/strong\u003e: 6.66 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\u003eGroove Face Width\u003c\/strong\u003e: 3\/4 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: 3.3 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: 1027150\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BROWNING","offers":[{"title":"Default Title","offer_id":51543391371570,"sku":"1027150","price":93.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b53228330b2d4691d64523bed198d626.jpg?v=1785917759","url":"https:\/\/voomisupply.com\/products\/browning-1027150-single-groove-sheave-1-in-bore-cast-iron","provider":"Voomi Supply","version":"1.0","type":"link"}