{"title":"Double Blocks","description":"","products":[{"product_id":"qbp202357","title":"Harken 40mm Carbo Air Double Swivel Block 2638","description":"\u003cp\u003e\u003cstrong\u003e40mm Carbo Air Double Swivel Block\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. 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They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 38mm (1-1\/2\")\u003c\/li\u003e\n\u003cli\u003eMaximum Line: 10mm (3\/8\")\u003c\/li\u003e\n\u003cli\u003eMaximum Working Load: 272kg (600lb)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":52020997816501,"sku":"QBP328071","price":92.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1231152_qbp328071.jpg?v=1763151651"},{"product_id":"qbp219812","title":"Harken 38mm Double Big Bullet Block w\/Becket 128","description":"\u003cp\u003e\u003cstrong\u003e38mm Double Big Bullet Block with Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. 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These compact blocks have very high working loads and smooth operation to simplify the positioning and retrieval of teaser lines.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSheave Ø (mm): 40 mm\u003c\/li\u003e \u003cli\u003eSheave Ø (in): 1-9\/16 in\u003c\/li\u003e \u003cli\u003eMaximum line Ø (mm): 10 mm\u003c\/li\u003e \u003cli\u003eMaximum line Ø (in): 3\/8 in\u003c\/li\u003e \u003cli\u003eMaximum working load (kg): 220 kg\u003c\/li\u003e \u003cli\u003eMaximum working load (lb): 485 lbs\u003c\/li\u003e \u003c\/ul\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":52021008466101,"sku":"QBP892796","price":60.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1231912_qbp892796.jpg?v=1763151788"},{"product_id":"qbp873862","title":"Harken 45mm Double Element Block w\/Swivel 6238","description":"\u003cp\u003e\u003cstrong\u003e45mm Double Element Block with Swivel\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks.\u003cbr\u003e\u003cbr\u003eSideplates are hardcoat-anodized to resist corrosion. 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They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So size for size, Element is priced significantly lower, than our previously least expensive blocks.\u003cbr\u003e\u003cbr\u003eSideplates are hardcoat-anodized to resist corrosion. 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Mounted onto the stanchion base, the stanchion lead block enables the Genoa furling line to be led back to the cockpit for easy adjustment.\u003c\/p\u003e \u003cp\u003eBall bearing sheaves have a precision molded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads. 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The 2-stage ball bearing system provides consistent performance over the full load range.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMainsheet\u003c\/li\u003e \u003cli\u003eHalyard\u003c\/li\u003e \u003cli\u003eVang\u003c\/li\u003e \u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":52021126758581,"sku":"QBP140506","price":74.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1246076_qbp140506.jpg?v=1763154014"},{"product_id":"qbp965871","title":"Ronstan Series 40 Ball Bearing Block - Double - Becket - Swivel Head RF40210","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Block - Double - Becket - Swivel Head\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e \u003cli\u003eLightweight\u003c\/li\u003e \u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range. 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Head swivels freely.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExceptionally high working loads\u003c\/li\u003e \u003cli\u003eLow maintenance, long service life\u003c\/li\u003e \u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e \u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e \u003cli\u003eTwo way head post\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMainsheet\u003c\/li\u003e \u003cli\u003eHalyard\u003c\/li\u003e \u003cli\u003eVang\u003c\/li\u003e \u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eU.V. stabilized Acetal sheaves\u003c\/li\u003e \u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e \u003cli\u003eGrade 316 stainless steel bearing race\u003c\/li\u003e \u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSheave Ø: 40mm(1-9\/16\")\u003c\/li\u003e \u003cli\u003eMax. 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The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub.\u003c\/p\u003e \u003cp\u003eWeight and bulk are further reduced in the different block configurations. The ball bearing single and becket block have a through-sheave becket arrangement. The result? The lowest weight is possible.\u003c\/p\u003e \u003cp\u003eMulti-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight-saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighest working load in its class\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThe orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.\u003cbr\u003e\u003cbr\u003eThe floating sheave and bearing system are supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized. 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The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eThis range could be used to create purchasing systems for lifting, garage door mechanisms, storage solutions, etc.\u003c\/li\u003e \u003cli\u003eThe 00.23 can be used to create a 4:1 or 5:1 purchase system to aid in lifting heavier objects and decrease the load on the rope\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMax Rope: 8mm\u003c\/li\u003e \u003cli\u003eBreaking Load: 1000kg\u003c\/li\u003e \u003c\/ul\u003e","brand":"Sea Sure","offers":[{"title":"Default Title","offer_id":52021173878965,"sku":"QBP302470","price":44.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1249651_qbp302470.jpg?v=1763154627"},{"product_id":"qbp514664","title":"Ronstan Series 20 Ball Bearing Block - Double - 2-Axis Shackle Head RF20202","description":"\u003cb\u003eSeries 20 Ball Bearing Block - Double - 2-Axis Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003ePrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction\u003c\/li\u003e\n\u003cli\u003eTwo-Way head can be fixed at 0° or 90°\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003c\/li\u003e\n\u003cli\u003eDinghy vangs\u003c\/li\u003e\n\u003cli\u003eCunninghams\u003c\/li\u003e\n\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eStainless steel ball bearings\u003c\/li\u003e\n\u003cli\u003eUV Stabilized Acetal sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e 20mm(3\/4\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e 6mm(1\/4\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 4mm(5\/32\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e 350kg(770lbs)\u003cbr\u003e\u003cb\u003eB. 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Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Swivel shackle head for full 360 degree rotation (non-locking).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExceptionally high working loads\u003c\/li\u003e \u003cli\u003eLow maintenance \u0026amp; long service life\u003c\/li\u003e \u003cli\u003eSelf-lubricating Acetal polymer sheave ensures low friction and extreme durability\u003c\/li\u003e \u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMainsheet and halyard applications, vang and spinnaker control lines on boats to (33ft). 10m\u003c\/li\u003e \u003cli\u003eS60 - on boats up to 40ft, (12m)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eGrade 316 stainless steel load strap\u003c\/li\u003e \u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSheave Diameter: (inch) 2\" \/ (mm) 50\u003c\/li\u003e \u003cli\u003eMax Rope Diameter: (inch) 1\/2\" \/ (mm) 12\u003c\/li\u003e \u003cli\u003ePin Diameter: (inch) 1\/4\" \/ (mm) 6\u003c\/li\u003e \u003cli\u003eMaximum Working Load: (lb) 2200 \/ (kg) 1000\u003c\/li\u003e \u003cli\u003eBreaking Load: (lb) 4410 \/ (kg) 2000\u003c\/li\u003e \u003cli\u003eWeight: (oz) 9.0 \/ (g) 255\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":52021178532021,"sku":"QBP901812","price":78.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1250528_qbp901812.jpg?v=1763154731"},{"product_id":"qbp538261","title":"Ronstan Series 40 All Purpose Block - Double - Becket RF51210","description":"\u003cp\u003e\u003cstrong\u003eSeries 50 All Purpose Block - Double - Becket\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eExceptionally high working loads\u003c\/li\u003e \u003cli\u003eLow maintenance, long service life\u003c\/li\u003e \u003cli\u003eSelf-lubricating Acetal polymer sheave ensures low friction and extreme durability\u003c\/li\u003e \u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e \u003cli\u003eLockable swiveling head post\u003c\/li\u003e \u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e \u003cli\u003eSpare parts - RF51010 Replacement Becket Pin, RF151 shackle\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position. 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They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.\u003cbr\u003e\u003cbr\u003eAs well as traditional single swivel blocks, the range includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is highly versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.\u003cbr\u003e\u003cbr\u003eSeries 40 Orbit Blocks™ are fitted with our carbon-reinforced C-Cleat™ for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and adjustable for setting your preferred cleating angle.\u003cbr\u003e\u003cbr\u003eBall Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.\u003cbr\u003e\u003cbr\u003eHigh Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high-strength grade 2205 stainless steel sheave \u0026amp; hub together with a triple bearing race to maintain low friction at very high loads.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eClass-leading dynamic and static load ratings\u003c\/li\u003e \u003cli\u003eLightweight, yet strong. 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Rope Ø: 3\/8 in.\u003c\/li\u003e \u003cli\u003ePin Ø: 5\/32\"\u003c\/li\u003e \u003cli\u003eM.W.L.: 1320 lb.\u003c\/li\u003e \u003cli\u003eB. L.: 2650 lb.\u003c\/li\u003e \u003cli\u003eWeight: 4.2 oz.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":52021183742133,"sku":"QBP533222","price":90.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1251014_qbp533222.jpg?v=1763154800"},{"product_id":"qbp899538","title":"Ronstan Series 40 Orbit BB Double Block w\/Becket \u0026 Lashing Option RF48209","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit BB Double Block with Becket \u0026amp; Lashing Option\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.\u003cbr\u003e\u003cbr\u003eAs well as traditional single swivel blocks, the range includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is highly versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.\u003cbr\u003e\u003cbr\u003eSeries 40 Orbit Blocks™ are fitted with our carbon-reinforced C-Cleat™ for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and adjustable for setting your preferred cleating angle.\u003cbr\u003e\u003cbr\u003eBall Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.\u003cbr\u003e\u003cbr\u003eHigh Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high-strength grade 2205 stainless steel sheave \u0026amp; hub together with a triple bearing race to maintain low friction at very high loads.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eClass-leading dynamic and static load ratings\u003c\/li\u003e \u003cli\u003eLightweight, yet strong. Toughened, glass fiber reinforced nylon replaces stainless steel straps used in our traditional utility blocks\u003c\/li\u003e \u003cli\u003eLow friction 2-stage ball bearing system for efficient and effortless trimming\u003c\/li\u003e \u003cli\u003eSoft attachment, lashing and traditional swivel shackle head options\u003c\/li\u003e \u003cli\u003eLow profile and compact\u003c\/li\u003e \u003cli\u003eHigh performance cleating\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sportsboats to 8m (26ft)\u003c\/li\u003e \u003cli\u003eHalyard, vang and backstay applications on boats to 9m (30ft)\u003c\/li\u003e \u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e \u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e \u003cli\u003eM.W.L.: 1320 lb.\u003c\/li\u003e \u003cli\u003eB. L.: 2650 lb.\u003c\/li\u003e \u003cli\u003eWeight: 3.0 oz.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":52021183774901,"sku":"QBP899538","price":68.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1251015_qbp899538.jpg?v=1763154801"},{"product_id":"qbp935094","title":"Ronstan Series 40 Orbit BB Double Block w\/Becket \u0026 Swivel Shackle RF48210","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit BB Double Block with Becket \u0026amp; Swivel Shackle\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.\u003cbr\u003e\u003cbr\u003eAs well as traditional single swivel blocks, the range includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is highly versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.\u003cbr\u003e\u003cbr\u003eSeries 40 Orbit Blocks™ are fitted with our carbon-reinforced C-Cleat™ for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and adjustable for setting your preferred cleating angle.\u003cbr\u003e\u003cbr\u003eBall Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.\u003cbr\u003e\u003cbr\u003eHigh Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high-strength grade 2205 stainless steel sheave \u0026amp; hub together with a triple bearing race to maintain low friction at very high loads.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eClass-leading dynamic and static load ratings\u003c\/li\u003e \u003cli\u003eLightweight, yet strong. Toughened, glass fiber reinforced nylon replaces stainless steel straps used in our traditional utility blocks\u003c\/li\u003e \u003cli\u003eLow friction 2-stage ball bearing system for efficient and effortless trimming\u003c\/li\u003e \u003cli\u003eSoft attachment, lashing and traditional swivel shackle head options\u003c\/li\u003e \u003cli\u003eLow profile and compact\u003c\/li\u003e \u003cli\u003eHigh performance cleating\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sportsboats to 8m (26ft)\u003c\/li\u003e \u003cli\u003eHalyard, vang and backstay applications on boats to 9m (30ft)\u003c\/li\u003e \u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e \u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e \u003cli\u003ePin Ø: 5\/32\"\u003c\/li\u003e \u003cli\u003eM.W.L.: 1320 lb.\u003c\/li\u003e \u003cli\u003eB. 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Sheave runs exclusively on a ball bearing system for fast trim and release under any load.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures: \u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave: 76mm\/3\"\u003c\/li\u003e\n\u003cli\u003eMaximum Line: 14mm\/9\/16\"\u003c\/li\u003e\n\u003cli\u003eMax Working Load: 1270kg\/2800lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":52021191147701,"sku":"QBP255594","price":279.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1251718_qbp255594.jpg?v=1763154925"}],"url":"https:\/\/www.qualityboatparts.com\/collections\/double-blocks.oembed","provider":"Quality Boat Parts","version":"1.0","type":"link"}