{"product_id":"harken-40-mm-zircon-block-with-becket","title":"Harken 40 mm Zircon Block with Becket","description":"\u003c!-- harken-official:v2 Sku:2191 page_sha256:dd952e7fc51770dc519298a9ca73c2e590097abe406ee06a9f40d60f44ff2d09 --\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eZircon blocks help trimmers match sail shapes to new conditions immediately. At the core of the 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. Zircon blocks are available in 40- and 57-mm sheaves in single and double blocks, with or without beckets.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;width:100%;max-width:100%;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align:left;border-bottom:1px solid #ddd;padding:8px;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eBreaking load (kg)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e340 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eBreaking load (lb)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e750 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eLength (in)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e2 7\/8 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eLength (mm)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e73 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eMaximum line Ø (in)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e5\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eMaximum line Ø (mm)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eMaximum working load (kg)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e115 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eMaximum working load (lb)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e250 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eSheave Ø (in)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e1 9\/16 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eSheave Ø (mm)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eWeight (g)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e26.5 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eWeight (oz)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e0.93 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c!-- sr-faq v=1 vendor=harken source_sha256=8467c37daba949915244ffbb5aa78b0fb8727d591891852300cac457762e8a08 --\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cdetails\u003e\u003csummary\u003eWhere can additional safety and maintenance info be found?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eAdditional safety, maintenance, and warranty information is in the Harken catalog or manuals.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat maintenance does this block require?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eClean the block and attachments frequently with detergent and fresh water, and rotate the sheave to distribute cleaning.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should be inspected during maintenance?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eInspect and replace worn, UV damaged, or compromised splices on lashings and attachment loops.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should this block be attached for mounting?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eUse lashing or loops secured to the head of the block. Lash only through both cheeks so the lashing holds the block together.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should a block be added to the becket?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eThe block added to the becket must have a load no more than 1\/3 of the upper block's load. Do not add a fully loaded separate system.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAre there any limits when adding a block to the becket?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eThe added block’s load must be no more than 1\/3 of the upper block’s load. Do not add a fully loaded separate system.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat material are the sheave and sideplates made from?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eThe sheave and sideplates are constructed from strong, reliable fiber reinforced composite material.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAre there any precautions when lashing for attachment?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eEnsure the lashing or soft attachment is not in line with the seam, as this may split the block apart and cause failure.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat type of head attachment does it have?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eIt has a structural head for soft attachment.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should soft attachments be fitted to the block?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eUse lashing or loops secured to the head, ensuring they pass through both cheeks to prevent splitting the block.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should be inspected on lashings and attachment loops?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eInspect for wear, UV damage, and compromised splices; replace if any of these are found.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Where can additional safety and maintenance info be found?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Additional safety, maintenance, and warranty information is in the Harken catalog or manuals.\"}}, {\"@type\": \"Question\", \"name\": \"What maintenance does this block require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Clean the block and attachments frequently with detergent and fresh water, and rotate the sheave to distribute cleaning.\"}}, {\"@type\": \"Question\", \"name\": \"What should be inspected during maintenance?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Inspect and replace worn, UV damaged, or compromised splices on lashings and attachment loops.\"}}, {\"@type\": \"Question\", \"name\": \"How should this block be attached for mounting?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use lashing or loops secured to the head of the block. Lash only through both cheeks so the lashing holds the block together.\"}}, {\"@type\": \"Question\", \"name\": \"How should a block be added to the becket?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The block added to the becket must have a load no more than 1\/3 of the upper block's load. Do not add a fully loaded separate system.\"}}, {\"@type\": \"Question\", \"name\": \"Are there any limits when adding a block to the becket?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The added block’s load must be no more than 1\/3 of the upper block’s load. Do not add a fully loaded separate system.\"}}, {\"@type\": \"Question\", \"name\": \"What material are the sheave and sideplates made from?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The sheave and sideplates are constructed from strong, reliable fiber reinforced composite material.\"}}, {\"@type\": \"Question\", \"name\": \"Are there any precautions when lashing for attachment?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Ensure the lashing or soft attachment is not in line with the seam, as this may split the block apart and cause failure.\"}}, {\"@type\": \"Question\", \"name\": \"What type of head attachment does it have?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It has a structural head for soft attachment.\"}}, {\"@type\": \"Question\", \"name\": \"How should soft attachments be fitted to the block?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use lashing or loops secured to the head, ensuring they pass through both cheeks to prevent splitting the block.\"}}, {\"@type\": \"Question\", \"name\": \"What should be inspected on lashings and attachment loops?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Inspect for wear, UV damage, and compromised splices; replace if any of these are found.\"}}]}\u003c\/script\u003e\u003c!-- \/sr-faq --\u003e\u003c!-- \/harken-official --\u003e","brand":"Harken","offers":[{"title":"Single","offer_id":53250991128913,"sku":"2191","price":105000.0,"currency_code":"KRW","in_stock":true},{"title":"Double","offer_id":53250991161681,"sku":"2193","price":184000.0,"currency_code":"KRW","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/a87895b2-d8ac-49ba-94f2-a6ee977537fe.jpg?v=1773130249","url":"https:\/\/www.sailrace.com\/ko-kr\/products\/harken-40-mm-zircon-block-with-becket","provider":"SailRACE","version":"1.0","type":"link"}