{"product_id":"harken-175-mm-alum-swivel-block","title":"Harken 175 mm Alum Swivel Block","description":"\u003c!-- harken-official:v2 Sku:HC8635 page_sha256:02a451cbebe5798fa565dfd77adfa2bca4cd7e0963c247d30d623a9945dc25ad --\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eSideplates are constructed of hardcoat-anodized 6061-T6 aluminum for strength and corrosion resistance. The ultralight composite bearing system (ULC) rides on a heat-treated stainless steel inner race to handle extremely high loads.\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;\"\u003e25600 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;\"\u003e56450 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;\"\u003e16 5\/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;\"\u003eLength (mm)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e414 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;\"\u003e1 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;\"\u003e25 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;\"\u003e12800 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;\"\u003e28225 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;\"\u003e6 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;\"\u003eSheave Ø (mm)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e175 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 (kg)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e6.05 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003eWeight (lb)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #eee;padding:8px;vertical-align:top;\"\u003e13.34 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c!-- sr-faq v=1 vendor=harken source_sha256=029efe39f91c6132249baa7bbc837faa34cc761021b9053b471f1b199dc074ed --\u003e\u003ch3\u003eFAQs\u003c\/h3\u003e\u003cdetails\u003e\u003csummary\u003eWhat safety precautions should be taken during installation?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eStrictly follow all instructions, ensure all people and objects are clear of moving parts, and do not use without being trained or expert. Verify installations meet maximum working load requirements.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs a sealant required during installation?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eA sealant that prevents water ingress should be used in fastener holes during installation.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat is the guidance for choosing mounting fasteners?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eUse A4 (316) stainless steel fasteners, large washers or backing plates, and lock washers or locknuts to achieve rated loads. Installer must ensure the fasteners are suitable for the expected loads and application.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat are key considerations for mounting to maintain rated load?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eMount so loads do not exceed Maximum Working Load, and anchors, structures, and fasteners used must meet or exceed this rating.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhen should long-term maintenance be performed?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eConduct long-term maintenance after prolonged use, before storage, or if the sheave sounds rough or grinds.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat environmental exposure is the block designed to handle?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eThe block is designed for use in a marine saltwater environment, provided regular maintenance is followed.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat tools and supplies are suggested for long-term maintenance of megayacht blocks?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eA pin spanner wrench, soapy water, Tef-Gel lubricant, and blue Loctite adhesive are recommended.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should be checked regarding drainage during maintenance?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eEnsure holes and drainage channels are not obstructed so water does not collect.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eShould stray voltage be considered during installation?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eYes; control stray voltage aboard to reduce corrosion risks, consulting a marine metallurgical electronic corrosion expert if needed.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should fasteners be chosen for mounting this block?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eCarefully choose fasteners made from A4 (316) stainless steel, using large washers or backing plates and lock washers or locknuts, and ensure they meet or exceed the rated load.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat cleaning agents should be avoided?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eAvoid exposure to teak cleaners or caustic solutions, which can discolor surfaces and are not covered under warranty.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should be done if fasteners show loosening or corrosion during inspections?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eLooseness or signs of wear\/corrosion require tightening, replacement, and using blue Loctite adhesive as directed.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eIs a torque specification provided for fasteners on custom blocks?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eNo specific torque values are given; use guidance from fastener suppliers based on diameter and conditions.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should be checked during short-term inspection?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eInspect fasteners for looseness, signs of wear or corrosion. Check padeyes, shackles, lashings, and ensure all components operate smoothly without increased friction or scraping sounds.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eShould original components be used for repairs?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eAlways replace components with original Harken equipment to ensure proper strength and fit.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should fasteners be secured during assembly?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eUse blue Loctite adhesive on fasteners as specified to secure them during assembly.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow often should overhauls be performed?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eOverhauls should be done at least twice a year, after a heavy air regatta or passage, or before long-term storage.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eShould lubricants be used on this block?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eDo not grease unless specified. Using grease can cause bearings to skid instead of roll and should be avoided.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should you do if you find wear or corrosion on ball bearings during inspection?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eReplace any bearing balls if their surfaces are rough, scored, or have flat spots.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow should bearings be cleaned?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eFlush bearing areas with soapy water while rotating the sheave, then rinse with fresh water to clean and check for smooth movement.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat should you do if the sheave turns roughly or makes noise?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eDo not use the block. Overhaul immediately and determine the cause; replace parts as necessary before reuse.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat lubricant should be used on stainless\/aluminum contact points?\u003c\/summary\u003e\u003cdiv\u003e\u003cp\u003eTef-Gel should be used where stainless steel and aluminum touch, but avoid getting it on bearings.\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\": \"What safety precautions should be taken during installation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Strictly follow all instructions, ensure all people and objects are clear of moving parts, and do not use without being trained or expert. Verify installations meet maximum working load requirements.\"}}, {\"@type\": \"Question\", \"name\": \"Is a sealant required during installation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A sealant that prevents water ingress should be used in fastener holes during installation.\"}}, {\"@type\": \"Question\", \"name\": \"What is the guidance for choosing mounting fasteners?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use A4 (316) stainless steel fasteners, large washers or backing plates, and lock washers or locknuts to achieve rated loads. 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Check padeyes, shackles, lashings, and ensure all components operate smoothly without increased friction or scraping sounds.\"}}, {\"@type\": \"Question\", \"name\": \"Should original components be used for repairs?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Always replace components with original Harken equipment to ensure proper strength and fit.\"}}, {\"@type\": \"Question\", \"name\": \"How should fasteners be secured during assembly?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Use blue Loctite adhesive on fasteners as specified to secure them during assembly.\"}}, {\"@type\": \"Question\", \"name\": \"How often should overhauls be performed?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Overhauls should be done at least twice a year, after a heavy air regatta or passage, or before long-term storage.\"}}, {\"@type\": \"Question\", \"name\": \"Should lubricants be used on this block?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Do not grease unless specified. Using grease can cause bearings to skid instead of roll and should be avoided.\"}}, {\"@type\": \"Question\", \"name\": \"What should you do if you find wear or corrosion on ball bearings during inspection?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Replace any bearing balls if their surfaces are rough, scored, or have flat spots.\"}}, {\"@type\": \"Question\", \"name\": \"How should bearings be cleaned?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Flush bearing areas with soapy water while rotating the sheave, then rinse with fresh water to clean and check for smooth movement.\"}}, {\"@type\": \"Question\", \"name\": \"What should you do if the sheave turns roughly or makes noise?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Do not use the block. Overhaul immediately and determine the cause; replace parts as necessary before reuse.\"}}, {\"@type\": \"Question\", \"name\": \"What lubricant should be used on stainless\/aluminum contact points?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Tef-Gel should be used where stainless steel and aluminum touch, but avoid getting it on bearings.\"}}]}\u003c\/script\u003e\u003c!-- \/sr-faq --\u003e\u003c!-- \/harken-official --\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":53196195299665,"sku":"HC8635","price":13202000.0,"currency_code":"KRW","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/a33c83c5-78d2-4064-9312-e62e9c92bfbc.jpg?v=1772624804","url":"https:\/\/www.sailrace.com\/ko-kr\/products\/harken-175-mm-alum-swivel-block","provider":"SailRACE","version":"1.0","type":"link"}