{"product_id":"boston-gear-fc20-5-8-5-8-jaw-coupling","title":"Boston Gear FC20-5 8 5 8\" Jaw Coupling","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"603\" class=\"\"\u003eThe Boston Gear FC20-5\/8 Jaw Coupling is used in industrial power transmission systems to connect two rotating shafts and transmit torque while allowing for minor misalignment and vibration damping. Commonly installed in conveyor drives, pump assemblies, gearmotor systems, and general industrial machinery where flexible shaft coupling is required for smooth and reliable power transfer. Maintenance teams, OEM manufacturers, and system integrators use this coupling for drivetrain repair, equipment retrofit, motor-to-load connection, and replacement of worn or damaged coupling hubs.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"605\" data-end=\"622\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"623\" data-end=\"971\"\u003eThe Boston Gear FC20-5\/8 jaw coupling is commonly used in industrial mechanical drive systems including conveyors, mixers, pumps, fans, compressors, and automated machinery where torque transmission and misalignment compensation between motor and driven equipment are required to maintain system reliability and reduce wear on connected components.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"973\" data-end=\"1002\" class=\"PDq2pG_selectionAnchorContainer\"\u003eTechnical Specifications:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"1003\" data-end=\"1727\" class=\"\"\u003e• Manufacturer: Boston Gear (Regal Rexnord)\u003cbr data-start=\"1046\" data-end=\"1049\"\u003e• Model \/ Part number: FC20-5\/8\u003cbr data-start=\"1080\" data-end=\"1083\"\u003e• Product type: Jaw coupling hub (half coupling)\u003cbr data-start=\"1131\" data-end=\"1134\"\u003e• Coupling size: FC20\u003cbr data-start=\"1155\" data-end=\"1158\"\u003e• Bore size: 5\/8 inch\u003cbr data-start=\"1179\" data-end=\"1182\"\u003e• Material: Steel \/ carbon steel\u003cbr data-start=\"1214\" data-end=\"1217\"\u003e• Outside diameter: 2.0 inch\u003cbr data-start=\"1245\" data-end=\"1248\"\u003e• Overall coupling length: 3.69 inch (assembled) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1334\" data-end=\"1337\"\u003e• Torque capacity: approx. 470 in-lb \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1411\" data-end=\"1414\"\u003e• Maximum speed: up to 1750–3450 RPM (application dependent) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"1512\" data-end=\"1515\"\u003e• Bore type: Finished bore with keyway and set screw\u003cbr data-start=\"1567\" data-end=\"1570\"\u003e• Function: Flexible torque transmission with misalignment compensation\u003cbr data-start=\"1641\" data-end=\"1644\"\u003e• Design: Straight jaw hub (requires elastomer insert for full coupling assembly)\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1729\" data-end=\"1753\" class=\"PDq2pG_selectionAnchorContainer\"\u003eCommon Replacements:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"1754\" data-end=\"1877\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Lovejoy L-095 5\/8\" jaw coupling hub\u003cbr data-start=\"1791\" data-end=\"1794\"\u003e• Dodge Paraflex FC20 equivalent coupling hub\u003cbr data-start=\"1839\" data-end=\"1842\"\u003e• Martin FC20 5\/8\" jaw coupling hub\u003c\/p\u003e","brand":"PLG Automation ","offers":[{"title":"New","offer_id":51727051915566,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_f67589a9-8a43-4d6c-9d02-8f9ada7c1fb2.jpg?v=1770581492","url":"https:\/\/plgautomation.com\/products\/boston-gear-fc20-5-8-5-8-jaw-coupling","provider":"PLG Automation ","version":"1.0","type":"link"}