{"title":"Harken Zircon Blocks — Instructions","description":"\u003cstyle\u003e\n.mpom{--ink:#2a2b2a;--muted:#5f6368;--line:#e3e5e8;--soft:#f5f6f8;--navy:#0f1f3a;--navy2:#1b3358;--or:#ff9f1c;--blue:#1f6fb2;color:var(--ink);font-size:15px;line-height:1.55;max-width:100%}\n.mpom *{box-sizing:border-box}\n.mpom p{margin:0 0 10px}\n.mpom .om-tag{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:20px;letter-spacing:.3px;background:#e8f1fb;color:#1c5f93;margin:0 0 10px}\n.mpom .om-tag.ss{background:#eef7ee;color:#1e6b33}\n.mpom .om-head{display:grid;grid-template-columns:1.6fr 1fr;gap:28px;align-items:stretch;margin:4px 0 30px}\n.mpom .om-lead{color:var(--muted);margin:0 0 16px}\n.mpom .om-box{border:1px solid var(--line);border-radius:6px;padding:16px 18px;background:var(--soft)}\n.mpom .om-row{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:5px 0;border-bottom:1px dashed var(--line)}\n.mpom .om-row b{text-align:right}\n.mpom .om-acts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}\n.mpom .om-btn{display:flex;align-items:center;justify-content:center;gap:8px;height:44px;border-radius:4px;font-weight:600;font-size:14px;text-decoration:none!important;border:1.5px solid #151515}\n.mpom .om-btn.dl{background:#474747;border-color:#474747;color:#fff!important}\n.mpom .om-btn.buy{background:#ffae45;border-color:#ffae45;color:#2a2b2a!important}\n.mpom .om-btn svg{width:17px;height:17px}\n.mpom .om-toc{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 0}\n.mpom .om-toc a{font-size:13px;font-weight:600;padding:7px 12px;border-radius:4px;background:var(--soft);border:1px solid var(--line);text-decoration:none!important;color:var(--ink)!important}\n.mpom .om-toc a:hover{border-color:var(--blue)}\n.mpom .om-img{border:1px solid var(--line);border-radius:6px;background:#fff;position:relative;min-height:240px}\n.mpom .om-img img{position:absolute;inset:16px;width:calc(100% - 32px);height:calc(100% - 32px);max-width:none;object-fit:contain;margin:0}\n.mpom .om-block{margin:0 0 34px;scroll-margin-top:90px}\n.mpom h2.om-h{font-size:21px;margin:0 0 12px;padding-bottom:8px;border-bottom:2px solid var(--ink);text-transform:none;letter-spacing:0}\n.mpom h3.om-h3{font-size:15px;margin:0 0 6px}\n.mpom ul{margin:0 0 10px;padding-left:20px}\n.mpom .om-tbl{overflow-x:auto;border:1px solid var(--line);border-radius:6px;margin:0 0 10px}\n.mpom .om-tbl table{width:100%;border-collapse:collapse;font-size:13.5px;margin:0;border:0}\n.mpom .om-tbl th,.mpom .om-tbl td{padding:9px 10px;border:0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;background:#fff}\n.mpom .om-tbl th{background:var(--soft);font-weight:700;font-size:12.5px;text-transform:uppercase;letter-spacing:.3px}\n.mpom .num{white-space:nowrap}\n.mpom .om-shop{font-weight:600;color:var(--blue)!important;text-decoration:none!important;white-space:nowrap}\n.mpom .om-ask{color:var(--muted)!important;font-size:12.5px;font-weight:600;white-space:nowrap;text-decoration:underline!important;text-underline-offset:3px}.mpom .om-ask:hover{color:var(--ink)!important}\n.mpom .om-grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}\n.mpom .om-note{background:var(--soft);border-left:4px solid var(--or);padding:12px 14px;border-radius:4px;font-size:14px;margin-top:18px!important}\n.mpom .om-hero{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;border-radius:6px;padding:26px 28px;margin:4px 0 26px}\n.mpom .om-hero p{color:rgba(255,255,255,.88);margin:0;max-width:820px}\n.mpom h2.om-sec{font-size:20px;margin:0 0 4px;border:0;padding:0}\n.mpom .om-docs{display:grid;grid-template-columns:1fr 1fr;gap:16px}\n.mpom .om-doc{display:flex;gap:16px;border:1px solid var(--line);border-radius:6px;padding:16px;background:#fff}\n.mpom .om-doc .th{width:96px;min-width:96px;height:96px;border:1px solid var(--line);border-radius:4px;display:flex;align-items:center;justify-content:center;background:#fff}\n.mpom .om-doc .th img{max-width:88%;max-height:88%;margin:0}\n.mpom .om-doc h3{font-size:16px;margin:2px 0 4px}\n.mpom .om-doc .meta{font-size:12.5px;color:var(--muted);margin-bottom:10px}\n.mpom .om-doc .acts{display:flex;gap:8px;flex-wrap:wrap}\n.mpom .om-doc .acts a{height:36px;padding:0 14px;font-size:13px}\n.mpom .om-read{background:#ff9f1c;color:#fff!important;border-color:#ff9f1c!important;text-transform:uppercase;font-weight:700}\n@media (max-width:900px){.mpom .om-head,.mpom .om-grid2,.mpom .om-docs{grid-template-columns:1fr}.mpom .om-img{min-height:260px}}\n\u003c\/style\u003e\u003cdiv class=\"mpom\"\u003e\n\u003cdiv class=\"om-head\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"om-tag ss\"\u003eINSTRUCTIONS\u003c\/span\u003e\n\u003cp class=\"om-lead\"\u003eSpecifications, attachment and care for Harken Zircon ceramic-bearing blocks: composite sheaves insert-molded with low-friction ceramic bearings and a structural head for soft attachment.\u003c\/p\u003e\n\u003cdiv class=\"om-box\"\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eDocument\u003c\/span\u003e\u003cb\u003eHarken M1032 Zircon Blocks, 03.23\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-row\"\u003e\n\u003cspan\u003eFormat\u003c\/span\u003e\u003cb\u003ePDF · 2 pages · 0.9 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\u003ca class=\"om-btn dl\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/Harken-Zircon-Blocks-Instructions.pdf?v=1790891404\" target=\"_blank\" rel=\"noopener\"\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\/a\u003e\u003ca class=\"om-btn buy\" href=\"\/products\/har2195\"\u003eBuy\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-toc\"\u003e\n\u003ca href=\"#zr-specs\"\u003eSpecifications\u003c\/a\u003e\u003ca href=\"#zr-attach\"\u003eAttachment\u003c\/a\u003e\u003ca href=\"#zr-care\"\u003eMaintenance\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\/HAR2195.jpg?v=1747147737\" alt=\"Harken Zircon 57 mm block\" loading=\"lazy\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"zr-specs\"\u003e\n\u003ch2 class=\"om-h\"\u003eZircon Specifications\u003c\/h2\u003e\n\u003cdiv class=\"om-tbl\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart no.\u003c\/th\u003e\n\u003cth\u003eBlock\u003c\/th\u003e\n\u003cth\u003eSheave Ø (mm)\u003c\/th\u003e\n\u003cth\u003eLength (mm)\u003c\/th\u003e\n\u003cth\u003eWeight (g)\u003c\/th\u003e\n\u003cth\u003eOptimal line Ø (mm)\u003c\/th\u003e\n\u003cth\u003eMWL kg · lb\u003c\/th\u003e\n\u003cth\u003eBreaking load kg · lb\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2190\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm Single\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e40\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e60\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e22.9\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e6\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e115 · 250\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e340 · 750\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2190\"\u003eView block →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2191\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm Single w\/ becket\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e40\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e73\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e26.5\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e6\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e115 · 250\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e340 · 750\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2191\"\u003eView block →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2192\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm Double\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e40\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e60\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e44.7\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e6\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e230 · 500\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e680 · 1500\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2192\"\u003eView block →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2193\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm Double w\/ becket\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e40\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e73\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e47.6\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e6\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e230 · 500\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e680 · 1500\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2193\"\u003eView block →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2195\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e57 mm Single\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e57\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e79\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e44.8\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e8\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e150 · 330\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e450 · 990\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2195\"\u003eView block →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2196\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e57 mm Single w\/ becket\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e57\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e95\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e51.4\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e8\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e150 · 330\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e450 · 990\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2196\"\u003eView block →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2197\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e57 mm Double\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e57\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e79\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e86.4\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e8\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e300 · 660\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e900 · 1980\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2197\"\u003eView block →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cb\u003e2198\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd\u003e57 mm Double w\/ becket\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e57\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e95\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e92.7\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e8\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e300 · 660\u003c\/td\u003e\n\u003ctd class=\"num\"\u003e900 · 1980\u003c\/td\u003e\n\u003ctd\u003e\u003ca class=\"om-shop\" href=\"\/products\/har2198\"\u003eView block →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eComposite sheaves insert-molded with low-friction ceramic bearings.\u003c\/li\u003e\n\u003cli\u003eSheave and sideplates in fiber-reinforced composite.\u003c\/li\u003e\n\u003cli\u003eStructural head for soft attachment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"zr-attach\"\u003e\n\u003ch2 class=\"om-h\"\u003eAttachment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUse lashings or loops secured to the head of the block.\u003c\/li\u003e\n\u003cli\u003eLash through both cheeks so the lashing holds the block together. A lashing in line with the seam can split the block apart.\u003c\/li\u003e\n\u003cli\u003eA block added to the becket should carry no more than 1\/3 of the upper block's load. Don't hang a fully loaded separate system off it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"om-block\" id=\"zr-care\"\u003e\n\u003ch2 class=\"om-h\"\u003eMaintenance\u003c\/h2\u003e\n\u003cp\u003eClean the block and attachments often with detergent and fresh water worked into the sheave, ceramic bearings and sideplates. Spin the sheave to spread it, then flush with fresh water while turning.\u003c\/p\u003e\n\u003cp class=\"om-note\"\u003eInspect and replace worn, UV-damaged or compromised splices on lashings and attachment loops.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"om-h\" style=\"margin-top:10px\"\u003eProducts in this Manual\u003c\/h2\u003e\n\u003c\/div\u003e","products":[{"product_id":"har2190","title":"Harken Block - Zircon 40mm Single","description":"\u003cp\u003eThe Harken Block - Zircon 40mm Single #2190 is perfect for sailors looking to adapt quickly to shifting conditions. It uses industrial ceramic ball bearings to ensure smooth, efficient operation by preventing the bearings from touching or bunching up. This block is designed for small boats and is the most efficient in its class.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eEquipped with industrial ceramic ball bearings for superior performance\u003c\/li\u003e \u003cli\u003eCaged races keep bearings separated for optimal efficiency\u003c\/li\u003e \u003cli\u003eAvailable in 40- and 57-mm sheaves\u003c\/li\u003e \u003cli\u003eOffers configurations with or without beckets\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThe block features a 40mm sheave size, offering versatility for various sailing needs. Constructed with durable materials, it ensures long-lasting performance under demanding conditions. It's compatible with small boats, making it an ideal choice for sailors seeking reliable and efficient gear.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016293683506,"sku":"HAR2190","price":53.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2190.jpg?v=1747147736"},{"product_id":"har2192","title":"Harken Block - Zircon 40mm Double","description":"\u003cp\u003eHarken Zircon blocks help trimmers match sail shapes to new conditions immediately. At the core of the Harken Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings separated so they don't bunch, touch, and stop each other. The result is the most efficient small boat block Harken has ever made. Harken Zircon blocks are available in 40- and 57-mm sheaves in single and double blocks, with or without beckets.\u003c\/p\u003e\u003cp\u003e Our Part # HAR2192 | Mfr. Part # 2192\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016293716274,"sku":"HAR2192","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2192.jpg?v=1747147736"},{"product_id":"har2191","title":"Harken Block - Zircon 40mm Single - Becket","description":"\u003cp\u003eHarken Zircon blocks help trimmers match sail shapes to new conditions immediately. At the core of the Harken Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings separated so they don't bunch, touch, and stop each other. The result is the most efficient small boat block Harken has ever made. Harken Zircon blocks are available in 40- and 57-mm sheaves in single and double blocks, with or without beckets.\u003c\/p\u003e\u003cp\u003e Our Part # HAR2191 | Mfr. Part # 2191\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016293749042,"sku":"HAR2191","price":54.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2191.jpg?v=1747147737"},{"product_id":"har2195","title":"Harken Block - Zircon 57mm Single","description":"\u003cp\u003eThe Zircon 57mm Single #2195 is a game-changer for small boat enthusiasts, featuring top-notch industrial ceramic ball bearings. Designed for sailors who demand performance, this block offers unparalleled efficiency with minimal energy loss. It's perfect for those looking to improve sail control and enhance speed.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIndustrial ceramic ball bearings for smooth performance\u003c\/li\u003e \u003cli\u003eCaged races prevent bearing bunching and friction\u003c\/li\u003e \u003cli\u003eOver 700% stronger than stainless bearings of the same size\u003c\/li\u003e \u003cli\u003eIdeal for precise sail adjustment with reduced energy absorption\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eThe Zircon 57mm Single is built with industrial-grade ceramic materials, ensuring durability and reliability on the water. With a sleek 57mm design, it integrates seamlessly into your sailing setup while providing the strength to withstand high compression. Designed for small boats, it promises improved sail shape and increased speed, making it an essential component for serious sailors.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016293781810,"sku":"HAR2195","price":62.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2195.jpg?v=1747147737"},{"product_id":"har2193","title":"Harken Block - Zircon 40mm Double - Becket","description":"\u003cp\u003eHarken Zircon blocks help trimmers match sail shapes to new conditions immediately. At the core of the Harken Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings separated so they don't bunch, touch, and stop each other. The result is the most efficient small boat block Harken has ever made. Harken Zircon blocks are available in 40- and 57-mm sheaves in single and double blocks, with or without beckets.\u003c\/p\u003e\u003cp\u003e Our Part # HAR2193 | Mfr. Part # 2193\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016293814578,"sku":"HAR2193","price":96.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2193.jpg?v=1747147737"},{"product_id":"har2196","title":"Harken Block - Zircon 57mm Single - Becket","description":"\u003cp\u003eThe Zircon 57mm Single - Becket #2196 is an exceptional harken block, known for its efficiency and smooth performance. With industrial ceramic ball bearings, this block ensures minimal friction and offers impressive durability. It's perfect for sailboats that demand precision and reliability.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eBenefits\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIndustrial ceramic ball bearings for enhanced performance\u003c\/li\u003e \u003cli\u003eCaged races prevent bearings from bunching up\u003c\/li\u003e \u003cli\u003e700% stronger in compression than stainless bearings\u003c\/li\u003e \u003cli\u003eIdeal for light air sailing with better sail shape control\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eCrafted with advanced materials, this harken block features a 57mm dimension, making it ideal for small boat applications. Its ceramic bearings are designed to withstand significant load without deforming, ensuring longevity and consistent performance. Compatible with a wide range of sailing gear, it's a reliable choice for avid sailors.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016293880114,"sku":"HAR2196","price":64.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2196.jpg?v=1747147739"},{"product_id":"har2197","title":"Harken Block - Zircon 57mm Double","description":"\u003cp\u003eZircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings apart so they don’t bunch up, touch, and stop each other. The result is a very free-running block with less energy lost to friction than in even our current Carbo blocks. Give an unrigged Zircon block a strong spin, and it spins for an incredibly long time. Zircon bearings are more than 700% stronger in compression than stainless bearings of the same size. So, they won’t deform if used within the recommended load limits. More importantly, they don’t absorb as much energy before starting to roll. This becomes evident when you need to ease a sail in very light air. You feel even the slightest fluctuations in sheet load. When used expertly, that means better sail shape and more speed. 57 mm Zircon blocks coming soon.\u003c\/p\u003e\u003cp\u003e Our Part # HAR2197 | Mfr. Part # 2197\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016293945650,"sku":"HAR2197","price":122.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2197.jpg?v=1747147737"},{"product_id":"har2198","title":"Harken Block - Zircon 57mm Double - Becket","description":"\u003cp\u003eZircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings apart so they don’t bunch up, touch, and stop each other. The result is a very free-running block with less energy lost to friction than in even our current Carbo blocks. Give an unrigged Zircon block a strong spin, and it spins for an incredibly long time. Zircon bearings are more than 700% stronger in compression than stainless bearings of the same size. So, they won’t deform if used within the recommended load limits. More importantly, they don’t absorb as much energy before starting to roll. This becomes evident when you need to ease a sail in very light air. You feel even the slightest fluctuations in sheet load. When used expertly, that means better sail shape and more speed. 57 mm Zircon blocks coming soon.\u003c\/p\u003e\u003cp\u003e Our Part # HAR2198 | Mfr. Part # 2198\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":50016293978418,"sku":"HAR2198","price":129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/HAR2198.jpg?v=1747147738"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/collections\/HAR2195.jpg?v=1790891666","url":"https:\/\/www.mauripro.com\/collections\/owners-manuals-harken-zircon-blocks.oembed","provider":"MAURIPRO Sailing","version":"1.0","type":"link"}