{"product_id":"lovejoy-68514427093-variable-speed-pulley-0-5hp-b-belt","title":"Lovejoy 68514427093 Variable Speed Pulley 0.5HP B Belt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe LOVEJOY 68514427093 is a spring-loaded variable speed pulley from the Econoline series, designed for use with B-series V-belts in belt-drive power transmission applications. It features a 5-inch outside diameter, a 1.72-inch minimum pitch diameter, and a 4.65-inch maximum operating diameter. The bore measures 5\/8 inch with a 3\/16 by 3\/32 inch keyway for positive shaft engagement. Rated at 0.5 HP at 1750 RPM and 0.333 HP at 1150 RPM, this pulley is suited for HVAC fan and blower drives where variable speed control is required. Licensed HVAC technicians and mechanical contractors are the typical installers.\u003c\/p\u003e\n\u003cp\u003eThis variable speed pulley is used in residential and light commercial belt-drive blower and fan assemblies. The spring-loaded design allows continuous speed variation within the rated pitch range without manual belt adjustment, making it practical for air handler and ventilation equipment applications. It is intended for installations where a B-series V-belt is already specified and the shaft diameter is 5\/8 inch.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpring-loaded design enables automatic variable speed adjustment within the operating range\u003c\/li\u003e\n  \u003cli\u003eMinimum pitch diameter of 1.72 inches, maximum operating diameter of 4.65 inches\u003c\/li\u003e\n  \u003cli\u003e5-inch outside diameter with 5\/8-inch bore\u003c\/li\u003e\n  \u003cli\u003eKeyway included — 3\/16 by 3\/32 inch — for positive shaft retention\u003c\/li\u003e\n  \u003cli\u003eRated 0.5 HP at 1750 RPM and 0.333 HP at 1150 RPM\u003c\/li\u003e\n  \u003cli\u003eCompatible with B-series V-belts per standard trade sizing\u003c\/li\u003e\n  \u003cli\u003eEconoline series construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with B-series V-belts on 5\/8-inch shafts in belt-drive blower and fan assemblies requiring variable speed operation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician or mechanical contractor. Disconnect and lock out all power to the drive system before removing or installing any pulley. Verify shaft diameter and keyway dimensions match before mounting. Check belt alignment and tension after installation per standard drive system practices.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Econoline\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBelt Trade Size\u003c\/strong\u003e: B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Operating Diameter\u003c\/strong\u003e: 4.65 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Pitch Diameter\u003c\/strong\u003e: 1.72 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore (Inside Diameter)\u003c\/strong\u003e: 5\/8 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eKeyway\u003c\/strong\u003e: 3\/16 by 3\/32 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorsepower at 1750 RPM\u003c\/strong\u003e: 0.5 HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHorsepower at 1150 RPM\u003c\/strong\u003e: 0.333 HP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4 pounds\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: LOVEJOY\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 68514427093\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"LOVEJOY","offers":[{"title":"Default Title","offer_id":51544208867634,"sku":"68514427093","price":848.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7e8db9a2bbe5d368070b57d028cee9f7.jpg?v=1785925692","url":"https:\/\/voomisupply.com\/products\/lovejoy-68514427093-variable-speed-pulley-0-5hp-b-belt","provider":"Voomi Supply","version":"1.0","type":"link"}