{"product_id":"spinlock-sheave-mobile-block-with-locking-cam","title":"Spinlock Sheave mobile block with locking cam","description":"\u003cp\u003eThis jammer block is for situations where a fixed foot block can’t help: peeling spinnakers, or changing a sheet winch.\u003c\/p\u003e\n\u003ch3\u003eDetails:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eControlled spinnaker handling\u003c\/li\u003e\n\u003cli\u003eAttached with webbing strop, positioned on a toe rail or padeye\u003c\/li\u003e\n\u003cli\u003eNo drilling and no clutter on deck\u003c\/li\u003e\n\u003cli\u003ePlain bearing sheave provides smooth running at low loads\u003c\/li\u003e\n\u003cli\u003eExcellent durability at high loads\u003c\/li\u003e\n\u003cli\u003eStrop allows fullest rotation for spinnaker sheet use\u003c\/li\u003e\n\u003cli\u003eCAM has three distinct operating modes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEspecifications:\u003c\/h3\u003e\n\u003cdiv\u003e\u003cstrong\u003eSheave Diameter \/ Type\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eBRS\/50 - 50mm (2\") composite\u003cbr\u003e\nBRS\/63 - 63mm (2 1\/2\") Alloy\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eSWL (Safe Working Load) Sheave\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eBRS\/50 - 800kg (1760lbs)\u003cbr\u003e\nBRS\/63 - 1200kg (2640lbs)\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eSafe Cam Load\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eBRS\/50 - 160kg (352lbs)\u003cbr\u003e\nBRS\/63 - 240kg (528lbs)\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eLine Diameter\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eBRS\/50 - 6-10mm (1\/4-3\/8\")\u003cbr\u003e\nBRS\/63 - 8-12mm (5\/16-1\/2)\u003c\/div\u003e\u003c!-- sr-faq v=1 vendor=spinlock source_sha256=f5c8e9b53a1698bc285db394fed20512a9ecbb87c2d694ade6be6475996ce4b7 --\u003e\u003cdiv class=\"sr-faq-wrap\" style=\"margin-top:4rem\"\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cdiv class=\"faq-box sr-faq-box\"\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eDoes installation require drilling into the deck?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eNo drilling is required; the product is positioned using the webbing strop to avoid deck clutter.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eWhat is the SWL (Safe Working Load) of the BRS\/50 sheave?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eSWL Sheave for BRS\/50 is 800kg (1760lbs).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eWhat is the safe cam load rating for the BRS\/50?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eSafe Cam Load for BRS\/50 is 160kg (352lbs).\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eWhat type of bearing does the sheave use?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eThe sheave uses a plain bearing to provide smooth running at low loads.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eWhat are the key specs for the larger BRS\/63 variant?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eBRS\/63 has a 63mm alloy sheave, SWL sheave 1200kg (2640lbs), safe cam load 240kg (528lbs), line dia 8–12mm (5\/16–1\/2\").\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eWhat is the sheave diameter and material for the BRS\/50?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eBRS\/50 uses a 50mm (2\") composite sheave.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eWhat line diameters will the BRS\/50 accept?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eBRS\/50 accepts line diameters 6–10mm (1\/4–3\/8\").\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eHow is the block attached to the boat?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eThe block is attached with a webbing strop and positioned on a toe rail or padeye.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"faq-block\"\u003e\u003cdiv class=\"accordion faq-item\"\u003e\u003cdetails\u003e\u003csummary style=\"align-items:center\"\u003e\u003cspan class=\"faq-block__heading\" style=\"flex:1 1 auto;margin:0;padding-right:2rem;font-size:1.5rem;font-weight:700\"\u003eWho do I contact for help with installation, servicing or advice?\u003c\/span\u003e\u003csvg class=\"icon icon-filter-two\" width=\"12\" height=\"7\" viewbox=\"0 0 12 7\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" aria-hidden=\"true\"\u003e\u003cpath d=\"M10 1.5L6 5.5L2 1.5\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv class=\"faq-block__description\"\u003e\u003cp\u003eContact \u003ca href=\"https:\/\/www.sailrace.com\/pages\/contact\"\u003ethe SailRACE team\u003c\/a\u003e — as certified marine experts we're happy to help with product selection, installation and after-sales servicing, before and after your purchase.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does installation require drilling into the deck?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No drilling is required; the product is positioned using the webbing strop to avoid deck clutter.\"}}, {\"@type\": \"Question\", \"name\": \"What is the SWL (Safe Working Load) of the BRS\/50 sheave?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"SWL Sheave for BRS\/50 is 800kg (1760lbs).\"}}, {\"@type\": \"Question\", \"name\": \"What is the safe cam load rating for the BRS\/50?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Safe Cam Load for BRS\/50 is 160kg (352lbs).\"}}, {\"@type\": \"Question\", \"name\": \"What type of bearing does the sheave use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The sheave uses a plain bearing to provide smooth running at low loads.\"}}, {\"@type\": \"Question\", \"name\": \"What are the key specs for the larger BRS\/63 variant?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"BRS\/63 has a 63mm alloy sheave, SWL sheave 1200kg (2640lbs), safe cam load 240kg (528lbs), line dia 8–12mm (5\/16–1\/2\\\").\"}}, {\"@type\": \"Question\", \"name\": \"What is the sheave diameter and material for the BRS\/50?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"BRS\/50 uses a 50mm (2\\\") composite sheave.\"}}, {\"@type\": \"Question\", \"name\": \"What line diameters will the BRS\/50 accept?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"BRS\/50 accepts line diameters 6–10mm (1\/4–3\/8\\\").\"}}, {\"@type\": \"Question\", \"name\": \"How is the block attached to the boat?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The block is attached with a webbing strop and positioned on a toe rail or padeye.\"}}, {\"@type\": \"Question\", \"name\": \"Who do I contact for help with installation, servicing or advice?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Contact the SailRACE team — as certified marine experts we're happy to help with product selection, installation and after-sales servicing, before and after your purchase.\"}}]}\u003c\/script\u003e\u003c!-- \/sr-faq --\u003e","brand":"Spinlock","offers":[{"title":"50mm","offer_id":51625972498769,"sku":"BRS\/50","price":176.0,"currency_code":"USD","in_stock":true},{"title":"63mm","offer_id":51625972531537,"sku":"BRS\/63","price":253.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4434\/4913\/files\/spinlock-sheave-mobile-block-with-locking-cam-sheave-mobile-block-with-locking-cam-1-scaled.webp?v=1754728521","url":"https:\/\/www.sailrace.com\/es-us\/products\/spinlock-sheave-mobile-block-with-locking-cam","provider":"SailRACE","version":"1.0","type":"link"}