{"product_id":"block-single-swivel-55mm-ratchet-series-55-orbit","title":"Block,Single,Swivel,55mm. Ratchet, Series 55 Orbit","description":"\u003cp\u003eBLOCK,SINGLE,SWIVEL,55MM\u003c\/p\u003e\n\u003cp\u003eRATCHET, SERIES 55 ORBIT\u003c\/p\u003e\n\n\u003cdiv class=\"row\"\u003e\n\u003cdiv id=\"product-top\" class=\"large-7 columns\"\u003e\n\u003ch2\u003e\n\u003cimg border=\"0\" src=\"http:\/\/www.ronstan.com\/images\/block\/rt.gif\"\u003e Series 55 Ratchet Orbit Block™\u003c\/h2\u003e\n\u003ch3 class=\"subheader\"\u003e\u003c\/h3\u003e\n\u003ch3 class=\"subheader\"\u003eFEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation.\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points.\u003c\/li\u003e\n\u003cli\u003eAutomatic \u0026amp; manual ratchet block\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"large-5 columns product-image\"\u003e\n\u003cimg src=\"http:\/\/www.ronstan.com\/images\/product\/RF56100.jpg\"\u003e \u003csmall\u003e \u003c\/small\u003e \u003cbr\u003e\u003cbr\u003e\n\u003cdiv class=\"prod-spec\"\u003e\n\u003cform action=\"http:\/\/www.ronstan.com.au\/marine5\/product.asp?ProdNo=RF56100\" method=\"post\" name=\"form\" class=\"units\"\u003e\u003cinput type=\"image\" border=\"0\" src=\"http:\/\/www.ronstan.com.au\/images\/marine\/ImperialMetricmarine1.gif\" name=\"submit\" value=\"Metric\" width=\"105\" height=\"13\" alt=\"Change to Metric Measurements\" class=\"plain\"\u003e\u003c\/form\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"text-left\" id=\"eight\"\u003eSheave Ø\u003c\/th\u003e\n\u003ctd class=\"text-left\" id=\"eight\"\u003e55 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"text-left\"\u003eMax. Rope Ø\u003c\/th\u003e\n\u003ctd class=\"text-left\"\u003e10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"text-left\" id=\"eight\"\u003eMax. Cable Ø\u003c\/th\u003e\n\u003ctd class=\"text-left\" id=\"eight\"\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"text-left\"\u003ePin Ø\u003c\/th\u003e\n\u003ctd class=\"text-left\"\u003emm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"text-left\" id=\"eight\"\u003eM.W.L.\u003c\/th\u003e\n\u003ctd class=\"text-left\" id=\"eight\"\u003e250 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"text-left\"\u003eB. L.\u003c\/th\u003e\n\u003ctd class=\"text-left\"\u003e650 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"text-left\" id=\"eight\"\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"text-left\" id=\"eight\"\u003e82 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row collapse\"\u003e\n\u003cdiv class=\"large-12 columns\"\u003e\n\u003chr\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003chr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row collapse\"\u003e\n\u003cdiv class=\"large-9 columns \"\u003e\n\u003ca name=\"info\"\u003e\u003c\/a\u003e\n\u003ch3 class=\"subheader\"\u003ePRODUCT INFORMATION\u003c\/h3\u003e\n\u003cp minmax_bound=\"true\"\u003e\u003cstrong minmax_bound=\"true\"\u003eAutomatic ratchet block\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv minmax_bound=\"true\"\u003e\n\u003cp minmax_bound=\"true\"\u003eNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv minmax_bound=\"true\"\u003e\u003cem minmax_bound=\"true\"\u003e* Selected Series 55 models.\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv minmax_bound=\"true\"\u003e \u003c\/div\u003e\n\u003cdiv minmax_bound=\"true\"\u003e\n\u003cp minmax_bound=\"true\"\u003e\u003cstrong minmax_bound=\"true\"\u003eAwesome ratchet block holding power\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv minmax_bound=\"true\"\u003e\n\u003cp minmax_bound=\"true\"\u003eQuite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv minmax_bound=\"true\"\u003e \u003c\/div\u003e\n\u003chr\u003e\n\u003ca name=\"applications\"\u003e\u003c\/a\u003e\n\u003ch3 class=\"subheader\"\u003eAPPLICATIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel\u003c\/li\u003e\n\u003cli\u003eboats to 8m(26ft).\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8m (26ft).\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on sportsboats and small keel boats (lateral lead blocks)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ca name=\"materials\"\u003e\u003c\/a\u003e\n\u003ch3 class=\"subheader\"\u003eMATERIALS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSheave: Hard anodised Aluminium\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Aceetal\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilised, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003cli\u003eHead fitting: grade 316 stainless steel.\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal.\u003c\/li\u003e\n\u003cli\u003eSheave : Hard anodised aluminium.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":52812129861861,"sku":"RF56100","price":173.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/6495\/0501\/files\/RF56100.jpg?v=1789272238","url":"https:\/\/www.stevestonmarine.com\/products\/block-single-swivel-55mm-ratchet-series-55-orbit","provider":"Steveston Marine and Hardware","version":"1.0","type":"link"}