{"title":"Karver KRO Open Friction Rings — Product Sheet \u0026 Dimension Drawing","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/om-manual-v2.css\"\u003e\u003cstyle\u003e.mpom .om-tbl.nw td+td{white-space:nowrap}.mpom details.om-dd{position:relative;margin:0}.mpom details.om-dd\u003esummary{list-style:none;cursor:pointer}.mpom details.om-dd\u003esummary::-webkit-details-marker{display:none}.mpom .om-dd-menu{position:absolute;left:0;top:calc(100% + 6px);min-width:100%;width:max-content;max-width:360px;background:#fff;border:1px solid #e3e5e8;border-radius:6px;box-shadow:0 8px 24px rgba(0,0,0,.14);z-index:30;padding:6px}.mpom .om-dd-menu a{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:10px 12px;border-radius:4px;font-size:14px;font-weight:600;color:#2a2b2a!important;text-decoration:none!important}.mpom .om-dd-menu a:hover{background:#f5f6f8}.mpom .om-dd-menu small{font-weight:400;color:#5f6368;white-space:nowrap}\u003c\/style\u003e\u003cdiv class=\"mpom\"\u003e\n\u003cdiv class=\"om-head\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"om-tag\"\u003ePRODUCT SHEET\u003c\/span\u003e\u003cp class=\"om-lead\"\u003eSpecifications of the Karver KRO open friction rings KRO6 to KRO12 – safe working load, breaking load, diameters, opening, maximum line and weight – and how they are used to lead a furling line.\u003c\/p\u003e\n\u003cdiv class=\"om-box\"\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eDocument\u003c\/span\u003e\u003cb\u003eKarver KRO Open Friction Rings Product Sheet \u0026amp; Dimension Drawing\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eFormat\u003c\/span\u003e\u003cb\u003ePDF · 1 page · 0.3 MB\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-row\" style=\"border-bottom:0\"\u003e\n\u003cspan\u003eLanguage\u003c\/span\u003e\u003cb\u003eEnglish\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-acts\"\u003e\n\u003cdetails class=\"om-dd\"\u003e\u003csummary class=\"om-btn dl\"\u003e\u003csvg viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.4\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 4v11\"\u003e\u003c\/path\u003e\u003cpath d=\"m7 10 5 5 5-5\"\u003e\u003c\/path\u003e\u003cpath d=\"M5 20h14\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Download PDF ▾\u003c\/summary\u003e\u003cdiv class=\"om-dd-menu\"\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Karver-KRO-Open-Rings-Product-Sheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eProduct Sheet\u003c\/span\u003e\u003csmall\u003ePDF · 1 p.\u003c\/small\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Karver-KRO-Open-Rings-KRO6-KRO12-Plan.pdf\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan\u003eKRO range dimension drawing (KRO6 to KRO12)\u003c\/span\u003e\u003csmall\u003ePDF · 1 p.\u003c\/small\u003e\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003ca class=\"om-btn buy\" href=\"\/collections\/karver-blocks\"\u003eView Collection\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-toc\"\u003e\n\u003ca href=\"#om-specs\"\u003eSpecifications\u003c\/a\u003e\u003ca href=\"#om-use\"\u003eUse\u003c\/a\u003e\u003ca href=\"#om-products\"\u003eProducts\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-img\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/PF1026738.jpg?v=1786478266\" alt=\"Karver KRO Open Friction Rings — Product Sheet \u0026amp; Dimension Drawing\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-specs\"\u003e\n\u003ch2 class=\"om-h\"\u003eKRO Open Rings\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl nw\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eKRO6\u003c\/th\u003e\n\u003cth\u003eKRO8\u003c\/th\u003e\n\u003cth\u003eKRO10\u003c\/th\u003e\n\u003cth\u003eKRO12\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKarver reference\u003c\/td\u003e\n\u003ctd\u003ePF102 6738\u003c\/td\u003e\n\u003ctd\u003ePF102 6735\u003c\/td\u003e\n\u003ctd\u003ePF102 6740\u003c\/td\u003e\n\u003ctd\u003ePF102 6741\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSWL – safe working load (kg)\u003c\/td\u003e\n\u003ctd\u003e600\u003c\/td\u003e\n\u003ctd\u003e1 000\u003c\/td\u003e\n\u003ctd\u003e1 500\u003c\/td\u003e\n\u003ctd\u003e2 000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBL – breaking load (kg)\u003c\/td\u003e\n\u003ctd\u003e1 200\u003c\/td\u003e\n\u003ctd\u003e2 000\u003c\/td\u003e\n\u003ctd\u003e3 000\u003c\/td\u003e\n\u003ctd\u003e4 000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal diameter (mm)\u003c\/td\u003e\n\u003ctd\u003e28.4\u003c\/td\u003e\n\u003ctd\u003e36.4\u003c\/td\u003e\n\u003ctd\u003e46\u003c\/td\u003e\n\u003ctd\u003e53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal diameter (mm)\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness (mm)\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOpening (mm)\u003c\/td\u003e\n\u003ctd\u003e5.4\u003c\/td\u003e\n\u003ctd\u003e7.2\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003ctd\u003e10.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax line (mm)\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax rope attachment (mm)\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003ctd\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (g)\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/karver-kro6-open-ring\"\u003eView product →\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/karver-kro8-open-ring\"\u003eView product →\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/karver-kro10-open-ring\"\u003eView product →\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/karver-kro12-open-ring\"\u003eView product →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003eMaterial: 6082 aluminium, fully machined, 40µ hard anodisation, full shelving inside. The dimension plan repeats the external and internal diameters, thickness and opening of each size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"om-use\"\u003e\n\u003ch2 class=\"om-h\"\u003eWhat the KRO Is For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe open ring keeps the furling line perfectly aligned with the drum of the furler and lets it run cleanly along the stanchions.\u003c\/li\u003e\n\u003cli\u003eFurlers are flying by definition: the opening makes the furling line very easy to fit and remove.\u003c\/li\u003e\n\u003cli\u003eThe passage is shaped to let the line in with light force and stop it coming out in use.\u003c\/li\u003e\n\u003cli\u003eDesigned for the furling line, the KRO is also used for barber-haulers, reefs and lazy jacks.\u003c\/li\u003e\n\u003cli\u003ePick the size by the line it must pass (max line) and the lashing that holds it (max rope attachment).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp class=\"om-note\"\u003eNeed a part that isn't listed? \u003ca href=\"\/pages\/contact\"\u003eAsk us to source it\u003c\/a\u003e and quote the part number from the PDF.\u003c\/p\u003e\n\u003ch2 class=\"om-h\" id=\"om-products\"\u003eProducts in this Manual\u003c\/h2\u003e\n\u003c\/div\u003e","products":[{"product_id":"karver-kro6-open-ring","title":"Karver Blocks \u0026 Sheaves - KRO6 Open Friction Ring","description":"\u003cp\u003eLow friction KRO6 open ring. Max passage 6 mm. The passage is optimized to pass the line with light force and to prevent it from exiting during use. This open ring allows the furling line to be perfectly aligned in the drum furler and the rope to run perfectly along the stanchions. The furlers are by definition flying and open rings make it very easy to install and remove the furling line. The KRO was originally designed for the furling line but it is ultimately used for many other applications : barber-haulers, reefs, lazzy jacks, etc\u003c\/p\u003e\u003cp\u003eOur Part # KARPF1026738 | Karver Part # PF1026738\u003c\/p\u003e","brand":"Karver","offers":[{"title":"Default Title","offer_id":51564707545394,"sku":"KARPF1026738","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/PF1026738.jpg?v=1786478266"},{"product_id":"karver-kro8-open-ring","title":"Karver Blocks \u0026 Sheaves - KRO8 Open Friction Ring","description":"\u003cp\u003eLow friction KRO8 open ring. Passage max 8 mm. The passage is optimized to pass the line with light force and to prevent it from exiting during use. This open ring allows the furling line to be perfectly aligned in the drum furler and the rope to run perfectly along the stanchions. The furlers are by definition flying and open rings make it very easy to install and remove the furling line. The KRO was originally designed for the furling line but it is ultimately used for many other applications : barber-haulers, reefs, lazzy jacks, etc\u003c\/p\u003e\u003cp\u003eOur Part # KARPF1026735 | Karver Part # PF1026735\u003c\/p\u003e","brand":"Karver","offers":[{"title":"Default Title","offer_id":51564707578162,"sku":"KARPF1026735","price":68.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/PF1026735.jpg?v=1786478266"},{"product_id":"karver-kro10-open-ring","title":"Karver Blocks \u0026 Sheaves - KRO10 Open Friction Ring","description":"\u003cp\u003eLow friction KRO10 open ring. Passage max 10 mm. The passage is optimized to pass the line with light force and to prevent it from exiting during use. This open ring allows the furling line to be perfectly aligned in the drum furler and the rope to run perfectly along the stanchions. The furlers are by definition flying and open rings make it very easy to install and remove the furling line. The KRO was originally designed for the furling line but it is ultimately used for many other applications : barber-haulers, reefs, lazzy jacks, etc\u003c\/p\u003e\u003cp\u003eOur Part # KARPF1026740 | Karver Part # PF1026740\u003c\/p\u003e","brand":"Karver","offers":[{"title":"Default Title","offer_id":51564707610930,"sku":"KARPF1026740","price":92.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/PF1026740.jpg?v=1786478266"},{"product_id":"karver-kro12-open-ring","title":"Karver Blocks \u0026 Sheaves - KRO12 Open Friction Ring","description":"\u003cp\u003eLow friction KRO12 open ring. Passage max 12 mm. The passage is optimized to pass the line with light force and to prevent it from exiting during use. This open ring allows the furling line to be perfectly aligned in the drum furler and the rope to run perfectly along the stanchions. The furlers are by definition flying and open rings make it very easy to install and remove the furling line. The KRO was originally designed for the furling line but it is ultimately used for many other applications : barber-haulers, reefs, lazzy jacks, etc\u003c\/p\u003e\u003cp\u003eOur Part # KARPF1026741 | Karver Part # PF1026741\u003c\/p\u003e","brand":"Karver","offers":[{"title":"Default Title","offer_id":51564707643698,"sku":"KARPF1026741","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/PF1026741.jpg?v=1786478266"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/collections\/PF1026738.jpg?v=1793982959","url":"https:\/\/www.mauripro.com\/collections\/owners-manuals-karver-kro-open-friction-rings.oembed","provider":"MAURIPRO Sailing","version":"1.0","type":"link"}