{"product_id":"dial-6312dial-blower-pulley-8in-x-0-75in-keyway-cooler","title":"Dial 6312dial Blower Pulley 8in X 0.75in Keyway Cooler","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe DIAL 6312dial is a single-groove blower pulley designed for residential evaporative cooler systems. Measuring 8 inches in diameter with a 3\/4-inch bore, this zinc pulley transfers rotational power from the motor shaft to the blower assembly. The keyway slot locks the pulley to the shaft, preventing slippage under load and maintaining consistent blower speed. Zinc construction offers corrosion resistance in the humid environment typical of evaporative cooler operation. HVAC technicians and experienced DIYers install this part as a direct replacement for worn or damaged pulleys on swamp cooler blower assemblies.\u003c\/p\u003e\u003cp\u003eThis pulley is suited for residential evaporative cooler installations where an 8-inch diameter, 3\/4-inch bore single-groove pulley is specified. It is commonly used in rooftop and side-draft cooler configurations. The keyway design is a standard fit for blower shafts that use a matching key to secure drive components. Install context typically involves replacing a pulley that shows wear, cracking, or wobble that degrades airflow output and belt life.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e8-inch diameter with 3\/4-inch bore for standard blower shaft fitment\u003c\/li\u003e\n\u003cli\u003eKeyway slot provides positive shaft engagement and prevents rotational slippage\u003c\/li\u003e\n\u003cli\u003eSingle-groove profile compatible with standard V-belt drive configurations\u003c\/li\u003e\n\u003cli\u003eZinc construction resists corrosion in high-moisture evaporative cooler environments\u003c\/li\u003e\n\u003cli\u003eRound profile ensures balanced rotation and reduced vibration during operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement blower pulley for residential evaporative coolers requiring an 8-inch diameter, 3\/4-inch bore, single-groove, keyway-style pulley.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is typically performed by an HVAC technician or qualified service professional. Disconnect electrical power to the cooler unit before beginning any pulley or belt service. Remove belt tension before pulling the old pulley, and ensure the replacement key is fully seated in the keyway before securing the setscrew or fastener. Inspect the drive belt for wear and replace it if cracking or fraying is present before returning the unit to service.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Zinc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroove Type\u003c\/strong\u003e: Single-groove\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type\u003c\/strong\u003e: Replacement Part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DIAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6312dial\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DIAL","offers":[{"title":"Default Title","offer_id":51138632450354,"sku":"6312DIAL","price":17.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/64745-5ylzU0.jpg?v=1778260719","url":"https:\/\/voomisupply.com\/products\/dial-6312dial-blower-pulley-8in-x-0-75in-keyway-cooler","provider":"Voomi Supply","version":"1.0","type":"link"}