{"product_id":"crown-engineering-41907-coupler-end-4j-5-8-inches","title":"Crown Engineering 41907 Coupler End 4J 5\/8 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CROWN ENGINEERING 41907 is a Wood's-style coupler end designed for jaw-type flexible coupling assemblies. This component mates with a corresponding coupler hub or spider insert to transmit torque between rotating shafts in mechanical drive systems. The 41907 is configured for the 4J coupling size with a 5\/8-inch bore, making it a direct-fit piece for applications where precise shaft engagement and reliable power transmission are required. HVAC technicians, millwrights, and mechanical contractors typically install this type of coupler end when servicing or replacing flexible drive connections on fans, blowers, and pumps.\u003c\/p\u003e\u003cp\u003eThis coupler end suits residential and light commercial HVAC equipment, as well as general mechanical systems where jaw-type flexible couplings are standard. Typical installations include blower shaft assemblies, pump drives, and fan motor connections that use the 4J coupling family. The 5\/8-inch bore accommodates standard motor and equipment shafts of that diameter.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4J jaw-type coupling size for compatibility with standard 4J coupling assemblies\u003c\/li\u003e\n\u003cli\u003e5\/8-inch bore for direct shaft engagement without modification\u003c\/li\u003e\n\u003cli\u003eWood's-style coupler end design for use with matching spider inserts and hubs\u003c\/li\u003e\n\u003cli\u003eSuitable for blower, fan, and pump drive applications in HVAC and mechanical systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement coupler end for jaw-type flexible coupling assemblies using the 4J coupling size with a 5\/8-inch bore shaft.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified technician or millwright familiar with flexible coupling assemblies. De-energize and lock out the drive motor before removing or installing any coupling components. Ensure the shaft is clean and free of burrs before seating the coupler end, and verify alignment between drive and driven shafts after assembly to prevent premature wear on the spider insert.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoupling Size\u003c\/strong\u003e: 4J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore\u003c\/strong\u003e: 0.625 inches (5\/8 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoupling Style\u003c\/strong\u003e: Jaw-type flexible coupler end\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CROWN ENGINEERING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 41907\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CROWN ENGINEERING","offers":[{"title":"Default Title","offer_id":51468543131954,"sku":"41907","price":36.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/WoodsJSeriesCoupling_8a273d2d-8c6c-4ac3-8382-4251f91d5636.jpg?v=1783917083","url":"https:\/\/voomisupply.com\/products\/crown-engineering-41907-coupler-end-4j-5-8-inches","provider":"Voomi Supply","version":"1.0","type":"link"}