{"product_id":"riayer-double-sheave-marine-block-t316-stainless-nylon-composite","title":"RiaYer Double Sheave Sailing Block | T316 Stainless \u0026 Nylon Marine Pulley (35mm\/50mm)","description":"\u003cdiv class=\"product-description-wrapper\" style=\"font-family: inherit; color: inherit; line-height: 1.6; font-size: 1em;\"\u003e\n    \u003c!-- 1. Subtitle --\u003e\n    \u003cdiv style=\"border-bottom: 1px solid #e5e5e5; padding-bottom: 15px; margin-bottom: 20px;\"\u003e\n        \u003cp style=\"font-size: 1.1em; font-weight: bold; margin: 0; color: #333;\"\u003eHybrid Construction: T316 Stainless Steel Hardware + PA66 Nylon Body. Double Sheave Efficiency.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- 2. Overview --\u003e\n    \u003ch2 style=\"font-size: 1.3em; font-weight: bold; margin-bottom: 8px; margin-top: 0; color: #333;\"\u003eOverview\u003c\/h2\u003e\n    \u003cp style=\"margin-bottom: 20px;\"\u003eOptimize your rigging system with the \u003cstrong\u003eRiaYer Double Sheave Marine Block Series\u003c\/strong\u003e. Available in both \u003cstrong\u003e35mm\u003c\/strong\u003e and \u003cstrong\u003e50mm\u003c\/strong\u003e sizes, these blocks feature a professional \u003cstrong\u003eHybrid Construction\u003c\/strong\u003e. We combine the structural integrity of \u003cstrong\u003eT316 Marine-Grade Stainless Steel\u003c\/strong\u003e load straps with a lightweight, impact-resistant \u003cstrong\u003ePA66 Nylon body\u003c\/strong\u003e. Inside, precision \u003cstrong\u003eDelrin® ball bearings\u003c\/strong\u003e ensure low-friction operation. Whether you need the compact agility of the 35mm or the heavy-duty power of the 50mm, this series delivers reliable performance for mainsheets and control lines.\u003c\/p\u003e\n\n    \u003c!-- 3. Key Features --\u003e\n    \u003ch3 style=\"font-size: 1.2em; font-weight: bold; margin-bottom: 8px; color: #333;\"\u003eKey Features\u003c\/h3\u003e\n    \u003cul style=\"margin-bottom: 20px; padding-left: 20px; list-style-type: square;\"\u003e\n        \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003e⚓ Composite T316 \u0026amp; Nylon Build:\u003c\/strong\u003e The perfect balance of strength and weight. Critical load parts are forged from T316 Stainless Steel for rust resistance, while the body uses reinforced Nylon to reduce deck weight.\u003c\/li\u003e\n        \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003e⚙️ Double Sheave Design:\u003c\/strong\u003e Both the 35mm and 50mm models feature a dual-pulley configuration, doubling your mechanical advantage for easier line handling.\u003c\/li\u003e\n        \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003e🔄 Smooth Delrin® Bearings:\u003c\/strong\u003e Equipped with high-performance Delrin ball bearings that prevent jamming and ensure the sheaves spin freely even under dynamic loads.\u003c\/li\u003e\n        \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003e📏 Two Professional Sizes:\u003c\/strong\u003e Available in a compact 35mm version for smaller crafts\/control lines and a robust 50mm version for mainsheets and higher loads.\u003c\/li\u003e\n        \u003cli style=\"margin-bottom: 5px;\"\u003e\n\u003cstrong\u003e🔒 Fixed Head Stability:\u003c\/strong\u003e The stainless steel fixed head keeps the block aligned with the load direction, preventing twists and tangles in your rigging.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003c!-- 4. Specifications --\u003e\n    \u003ch3 style=\"font-size: 1.2em; font-weight: bold; margin-bottom: 8px; color: #333;\"\u003eTechnical Specifications\u003c\/h3\u003e\n    \u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n        \u003ctable style=\"border-collapse: collapse; border: 1px solid #e1e1e1; width: 100%; text-align: left;\"\u003e\n            \u003cthead\u003e\n                \u003ctr style=\"background-color: #f4f4f4;\"\u003e\n                    \u003cth style=\"padding: 10px; border-bottom: 2px solid #ddd;\"\u003eAttribute\u003c\/th\u003e\n                    \u003cth style=\"padding: 10px; border-bottom: 2px solid #ddd;\"\u003eDetails\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eLoad-Bearing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003eT316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eBody\/Sheave Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003eReinforced PA66 Nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eBearing Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003eDelrin® Ball Bearings\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eSheave Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003eDouble Sheave (2 Pulleys)\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eSheave Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003e35mm \/ 50mm (Select option)\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eMax Line Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003eUp to 3\/8\" (10mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003e\u003cstrong\u003eMax Breaking Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border-bottom: 1px solid #eee;\"\u003eUp to 3,100 lbs (depending on size)\u003c\/td\u003e\n\u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- 5. What's in the Box --\u003e\n    \u003ch3 style=\"font-size: 1.2em; font-weight: bold; margin-bottom: 8px; color: #333;\"\u003eWhat's in the Box?\u003c\/h3\u003e\n    \u003cul style=\"margin-bottom: 20px; padding-left: 20px; list-style-type: disc;\"\u003e\n        \u003cli\u003eRiaYer Hybrid Double Sheave Block(s)\u003c\/li\u003e\n        \u003cli style=\"font-style: italic; color: #666; font-size: 0.9em; margin-top: 3px;\"\u003e*Note: Quantity corresponds to your selection. Please ensure you select the correct size (35mm or 50mm) from the dropdown menu above.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003c!-- 6. Applications --\u003e\n    \u003ch3 style=\"font-size: 1.2em; font-weight: bold; margin-bottom: 8px; color: #333;\"\u003eVersatile Applications\u003c\/h3\u003e\n    \u003cp style=\"margin-bottom: 10px;\"\u003eIdeal for sailing and marine rigging:\u003c\/p\u003e\n    \u003cul style=\"margin-bottom: 20px; padding-left: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 5px; list-style: none;\"\u003e\n        \u003cli\u003e✔ Mainsheet Systems\u003c\/li\u003e\n        \u003cli\u003e✔ Boom Vangs\u003c\/li\u003e\n        \u003cli\u003e✔ Jib Sheets\u003c\/li\u003e\n        \u003cli\u003e✔ Control Lines\u003c\/li\u003e\n        \u003cli\u003e✔ Davit Systems\u003c\/li\u003e\n        \u003cli\u003e✔ Outhauls\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003c!-- 7. Why RiaYer --\u003e\n    \u003cdiv style=\"background-color: #f7f7f7; padding: 15px; border-left: 3px solid #333;\"\u003e\n        \u003cp style=\"font-weight: bold; margin-top: 0; margin-bottom: 8px; color: #333;\"\u003eWhy Choose RiaYer?\u003c\/p\u003e\n        \u003cp style=\"margin: 0;\"\u003eRiaYer marine blocks are built for the real world. By utilizing a hybrid construction of T316 Stainless Steel and PA66 Nylon, we offer a block that resists saltwater corrosion better than standard alloys while remaining remarkably lightweight. With precision Delrin bearings, you get consistent performance whether you are cruising or racing.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e","brand":"RiaYer","offers":[{"title":"35MM \/ 1 Pack","offer_id":48108543115514,"sku":"B0DG1RN29M","price":27.99,"currency_code":"USD","in_stock":true},{"title":"35MM \/ 2 Pack","offer_id":48501536751866,"sku":null,"price":27.99,"currency_code":"USD","in_stock":true},{"title":"35MM \/ 4 Pack","offer_id":48501536784634,"sku":null,"price":27.99,"currency_code":"USD","in_stock":true},{"title":"35MM \/ 6 Pack","offer_id":48501536817402,"sku":null,"price":27.99,"currency_code":"USD","in_stock":true},{"title":"35MM \/ 8 Pack","offer_id":48501536850170,"sku":null,"price":27.99,"currency_code":"USD","in_stock":true},{"title":"50MM \/ 1 Pack","offer_id":48108543148282,"sku":"B0DG192HDW","price":32.99,"currency_code":"USD","in_stock":true},{"title":"50MM \/ 2 Pack","offer_id":48501536882938,"sku":null,"price":27.99,"currency_code":"USD","in_stock":true},{"title":"50MM \/ 4 Pack","offer_id":48501536915706,"sku":null,"price":27.99,"currency_code":"USD","in_stock":true},{"title":"50MM \/ 6 Pack","offer_id":48501536948474,"sku":null,"price":27.99,"currency_code":"USD","in_stock":true},{"title":"50MM \/ 8 Pack","offer_id":48501536981242,"sku":null,"price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/9701\/0170\/files\/riayer-double-sheave-marine-block-hybrid-pulley.jpg?v=1778567785","url":"https:\/\/riayer.com\/products\/riayer-double-sheave-marine-block-t316-stainless-nylon-composite","provider":"RiaYer","version":"1.0","type":"link"}