{"product_id":"r-d-marine-5-bobbin-shaft-coupling-808005","title":"R\u0026D Marine 5\" Bobbin Shaft Coupling","description":"\u003cp\u003eA bobbin coupling is a double flange coupling, which is used to extend the boat propeller shaft. They can also be used for making a double flexible coupling with two R\u0026amp;D type flexible couplings. This can provide excellent noise and vibration control, at a very reasonable price.\u003c\/p\u003e\u003cp\u003eThe 5\" R\u0026amp;D bobbin coupling is machine from steel, and the flange will suit many of the most popular marine gearboxes, including 5\" nominal gearbox flanges of PRM, Borgwarner Velvet Drive, ZF, Hurth, Volvo Penta and Technodrive gearboxes.\u003c\/p\u003e\u003cp\u003eBobbin coupling dimensions:\u003c\/p\u003e\u003cp\u003ea - Flange outside diameter = 5.00\"\u003c\/p\u003e\u003cp\u003eb - Hole pitch circle = 4.25\"\u003c\/p\u003e\u003cp\u003ec - Number of holes = 4\u003c\/p\u003e\u003cp\u003ed - Hole size = 0.44\"\u003c\/p\u003e\u003cp\u003ee - Register diameter = 2.50\" male on one flange, female on the other\u003c\/p\u003e\u003cp\u003ef - Bobbin coupling length = 4.90\"\u003c\/p\u003e\u003cp\u003eg - Bobbin neck diameter = 3.38\"\u003c\/p\u003e\u003cp\u003e\u003cimg alt=\"Bobbin Shaft Coupling Dimensions Diagram\" src=\"https:\/\/d1blekj7w4kc3j.cloudfront.net\/files\/couplings\/bobbin-couplings.jpg\" title=\"Bobbin Coupling Diagram\" width=\"300\" height=\"155\"\u003e\u003c\/p\u003e\u003cp\u003eR \u0026amp; D Marine Bobbin shaft coupling spacer number 202-251\u003c\/p\u003e\u003cdiv class=\"panel-body\"\u003e\n                            \u003ctable class=\"table\"\u003e\n                                \u003ctbody\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eCoupling PCD\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003e4.25\" \/ 107.9mm\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eCoupling Register Diameter\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003e2.50\" \/ 63.5mm\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eGearbox Output Coupling Diameter\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003e5.00\" \/ 127mm\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eNumber of Fixing Holes\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003e4\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eRegister Gender\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003eMale one end and Female the other end.\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003eR\u0026amp;D Marine\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003e202-251\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003e4.90\"\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                    \u003ctr\u003e\n                                        \u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n                                        \u003ctd\u003eUnited Kingdom\u003c\/td\u003e\n                                    \u003c\/tr\u003e\n                                                                \u003c\/tbody\u003e\n                            \u003c\/table\u003e\n                        \u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eManufacturer Part Number: 202-251\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg align=\"right\" src=\"https:\/\/d1blekj7w4kc3j.cloudfront.net\/images\/presets\/product_page_normal\/catalogue\/products\/R-and-D-Marine-Logo_3.jpg\" alt=\"\" title=\"\" width=\"200\"\u003e\u003c\/p\u003e","brand":"R\u0026D Marine","offers":[{"title":"Default Title","offer_id":57809838866806,"sku":"AQ 808005","price":268.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/5560\/files\/808005.jpg?v=1778100057","url":"https:\/\/shop.chastheboat.co.uk\/products\/r-d-marine-5-bobbin-shaft-coupling-808005","provider":"ChasNewensMarine","version":"1.0","type":"link"}