{"product_id":"r-d-marine-5-split-clamp-on-coupling-for-30mm-shaft-yanmar-808538","title":"R\u0026D Marine 5\" Split Clamp On Coupling for 30mm Shaft, Yanmar 808538","description":"This clamp on split half coupling is machined from solid steel and mates with the Yanmar gearbox output coupling to connect a 30mm diameter metric boat propeller shaft to the Yanmar gearbox, usually via a flexible coupling.\n\nThe clamp on split type propeller shaft coupling is machined to suit the boat propeller shaft diameter but can accommodate the variations that can occur with normal boat propeller shaft tolerances. It is simple to install and can be adjusted to the required position on the shaft. This clamp on shaft coupling is bored with a keyway and is secured to the boat propeller shaft with the clamp bolts supplied.\n\nTypical applications include:\n5\" nominal gearbox flanges of Yanmar gearboxes such as the KBW20, KBW21 and KM4 gearboxes.\nRecommended torque for the clamp bolts: 54Nm (40 lbsft)\n\nCoupling dimensions:\nFor propeller shaft diameter 30mm\nKeyway to BS4235: Part 1 Rectangular\na - Flange outside diameter = 4.72\"\nb - Hole pitch circle = 100mm\nc - Number of holes = 4\nd - Hole size = 10mm\ne - Register diameter = 65mm male\nf - Coupling length = 3.75\"\ng - Coupling clamp boss diameter = 4.06\"\n\n\u003cimg alt=\"Split Coupling Dimensions Diagram\" src=\"https:\/\/d1blekj7w4kc3j.cloudfront.net\/files\/couplings\/split-couplings.jpg\" title=\"Split Coupling Diagram\" width=\"400\" height=\"155\"\u003e\n\nR \u0026amp; D Marine Clamp on shaft coupling number 202-300D.","brand":"R\u0026D","offers":[{"title":"Default Title","offer_id":57875005604221,"sku":"808538","price":469.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/0199\/3204\/files\/808538_2_9fc45a6c-2247-40e3-955f-c1c3ecbadca5.jpg?v=1772337108","url":"https:\/\/waterworldsports.co.uk\/products\/r-d-marine-5-split-clamp-on-coupling-for-30mm-shaft-yanmar-808538","provider":"waterworldsports.co.uk","version":"1.0","type":"link"}