{"product_id":"r-d-couplings","title":"R\u0026D Couplings","description":"\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan style=\"font-family: Tahoma;\"\u003eDescription\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan style=\"font-family: Tahoma;\"\u003eR \u0026amp; D Marine Flexible Shaft Couplings\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan style=\"font-family: Tahoma;\"\u003eThe R\u0026amp;D 910 Series couplings consist of a contoured flexible disc moulded in tough yet resilient new type Polyurethane Elastomer. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan style=\"font-family: Tahoma;\"\u003eThe contoured disc gives clearance for the bolt heads, is able to flex freely to take up any temporary misalignment of the engine and shaft, due to flexing of the boat structure or the engine moving on its rubber vibration isolation mountings. Forward thrust is taken in compression on the disc between the two half couplings and reverse thrust is taken again in compression on the disc between the two fail straps. \u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan style=\"font-family: Tahoma;\"\u003eIn the unlikely event of a disc failure the steel straps make the coupling fail safe and ensure drive is maintained in both forward and reverse.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan style=\"font-family: Tahoma;\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"Features\" class=\"prodInfoPanel\"\u003e\n\u003cul\u003e\n\u003cli\u003eBolts between existing shaft flanges\u003c\/li\u003e\n\u003cli\u003eRequires no machining\u003c\/li\u003e\n\u003cli\u003eSimple to install\u003c\/li\u003e\n\u003cli\u003eSimple to periodically check alignment\u003c\/li\u003e\n\u003cli\u003eReduces engine noise and vibration\u003c\/li\u003e\n\u003cli\u003eFail safe design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eNote: All flexible couplings are supplied with nuts and bolts ready for installing.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"R\u0026D Marine","offers":[{"title":"4\" x 5HP  B\/W, Hurth","offer_id":12636139716667,"sku":"910-001","price":282.29,"currency_code":"GBP","in_stock":true},{"title":"4\" x 3HP  YANMAR","offer_id":12636139749435,"sku":"910-002","price":269.1,"currency_code":"GBP","in_stock":true},{"title":"6\"x 20HP  B\/W, PRM","offer_id":12636139782203,"sku":"910-003","price":737.87,"currency_code":"GBP","in_stock":true},{"title":"4\" x 8HP  B\/W, Hurth","offer_id":12636139814971,"sku":"910-004","price":325.61,"currency_code":"GBP","in_stock":true},{"title":"4\" x 7HP 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