{"title":"Plastic Sheave Boxes","description":"\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003eAllen plastic sheave boxes, also known as exit blocks, provide a lightweight and cost-effective solution for a wide range of sailing applications. Designed for reliability and ease of installation, they are ideal for halyard systems, control lines, and general running rigging where moderate loads are expected.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"a-8-nylon-sheave-box-plain-bearing","title":"Nylon Sheave Box - Plain Bearing","description":"\u003cp\u003eA...8\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Plain Bearing - Acetal","offer_id":57196679659895,"sku":"A...8","price":10.13,"currency_code":"GBP","in_stock":true},{"title":"Plain Bearing - Aluminium","offer_id":57196679692663,"sku":"A...8A","price":20.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A...8.jpg?v=1781799730"},{"product_id":"a-94-nylon-mast-head-sheave-box-plain-bearing","title":"Nylon Mast Head Sheave Box - Plain Bearing","description":"\u003cp\u003eNylon Mast Head Sheave Box - Plain Bearing\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196690243959,"sku":"A..94","price":36.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A..94.jpg?v=1781799825"},{"product_id":"a2121-single-through-deck","title":"20mm Single Dynamic Through Deck Block","description":"\u003ch3\u003e20mm Single Dynamic Through Deck Block\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e20mm Single Dynamic Through Deck Block\u003c\/strong\u003e provides smooth, low-friction guidance for rope control lines passing through a deck. Designed for adjustable rigging and other applications, it features a durable acetal body precisely shaped to support and protect the sheave.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-sheave through deck design for efficient line routing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHard-wearing acetal body for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eIdeal for adjustable rigging and high-load applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented Dynamic Bearing System\u003c\/strong\u003e with twin rows of stainless-steel ball bearings running on a stainless-steel rail\u003c\/li\u003e\n\u003cli\u003eSuperior load-carrying capability and service life compared to bearing systems running on plastic rails\u003c\/li\u003e\n\u003cli\u003eDelivers smooth, reliable performance in applications requiring constant sheave movement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196763480439,"sku":"A2121","price":24.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2121.jpg?v=1781800507"},{"product_id":"high-load-single-through-deck-block-2","title":"20mm Single High Load Through Deck Block","description":"\u003ch3\u003e20mm Single High Load Through Deck Block\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e20mm Single High Load Through Deck Block\u003c\/strong\u003e provides smooth, efficient guidance for rope and wire control lines passing through a deck. Designed for adjustable rigging and other high-load applications, it features a durable acetal body precisely shaped to support the sheave and deliver reliable performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-sheave through deck design for efficient line routing\u003c\/li\u003e\n\u003cli\u003eSuitable for rope and wire control lines\u003c\/li\u003e\n\u003cli\u003eDurable acetal body engineered for demanding applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlain Bearing Sheave\u003c\/strong\u003e designed to handle high loads without the risk of bearing system failure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Load Stainless-Steel Sheave\u003c\/strong\u003e for improved durability and enhanced performance when used with wire\u003c\/li\u003e\n\u003cli\u003eIdeal for leading rigging wire through decks and other surfaces\u003c\/li\u003e\n\u003cli\u003eReliable, low-maintenance solution for high-load rigging applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196763578743,"sku":"A2121HL","price":42.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2121HL-2-1.jpg?v=1781800509"},{"product_id":"a2122-double-through-deck","title":"20mm Double Dynamic Through Deck Block","description":"\u003ch3\u003e20mm Double Dynamic Through Deck Block\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e20mm Double Dynamic Through Deck Block\u003c\/strong\u003e provides smooth, low-friction guidance for rope control lines passing through a deck. Designed for adjustable rigging and other highly loaded applications, it features a durable acetal body precisely shaped to support and protect the sheaves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDouble-sheave through deck design for efficient line routing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHard-wearing acetal body for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eIdeal for adjustable rigging and high-load applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented Dynamic Bearing System\u003c\/strong\u003e with twin rows of stainless-steel ball bearings running on a stainless-steel rail\u003c\/li\u003e\n\u003cli\u003eSuperior load-carrying capability and service life compared to bearing systems running on plastic rails\u003c\/li\u003e\n\u003cli\u003eDelivers smooth, reliable performance in applications requiring constant sheave movement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196764037495,"sku":"A2122","price":36.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2122.jpg?v=1781800512"},{"product_id":"high-load-double-through-deck-block","title":"20mm Double High Load Through Deck Block","description":"\u003cdiv\u003e\n\u003ch3\u003e20mm Double High Load Through Deck Block\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e20mm Double High Load Through Deck Block\u003c\/strong\u003e is designed to provide smooth, efficient guidance for rope and wire control lines passing through a deck. Its durable acetal body is precisely shaped to support the sheaves, delivering reliable performance in adjustable rigging and other high-load applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDouble-sheave through deck design for efficient line routing\u003c\/li\u003e\n\u003cli\u003eSuitable for rope and wire control lines\u003c\/li\u003e\n\u003cli\u003eDurable acetal body engineered for high-load applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlain bearing sheaves\u003c\/strong\u003e designed to handle high loads without the risk of bearing system failure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless-steel sheaves\u003c\/strong\u003e provide improved durability and enhanced performance when used with wire\u003c\/li\u003e\n\u003cli\u003eIdeal for leading rigging wire through decks and other surfaces\u003c\/li\u003e\n\u003cli\u003eReliable, low-maintenance solution for demanding rigging applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196764103031,"sku":"A2122HL","price":73.55,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2122HL.jpg?v=1781800513"},{"product_id":"high-load-single-through-deck-block","title":"30mm Single High Load Through Deck Block","description":"\u003cdiv\u003e\n\u003ch3\u003e30mm Single High Load Through Deck Block\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e30mm Single High Load Through Deck Block\u003c\/strong\u003e provides smooth, efficient guidance for rope and wire control lines passing through a deck or surface. Designed for adjustable rigging and other high-load applications, it features a durable acetal body precisely shaped to support the sheave and deliver reliable performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-sheave through deck design for efficient line routing\u003c\/li\u003e\n\u003cli\u003eSuitable for rope and wire control lines\u003c\/li\u003e\n\u003cli\u003eDurable acetal body engineered for demanding applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlain Bearing Sheave\u003c\/strong\u003e designed to handle high loads without the risk of bearing system failure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Load Stainless-Steel Sheave\u003c\/strong\u003e for improved durability and enhanced performance when used with wire\u003c\/li\u003e\n\u003cli\u003eIdeal for leading rigging wire through decks and other surfaces\u003c\/li\u003e\n\u003cli\u003eReliable, low-maintenance solution for high-load rigging applications\u003c\/li\u003e\n\u003cli\u003eDesigned for smooth and efficient operation in demanding marine environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196764922231,"sku":"A2131HL","price":50.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2131HL-1.jpg?v=1781800522"},{"product_id":"a2132-double-through-deck","title":"30mm Double Dynamic Through Deck Block","description":"\u003cdiv\u003e\n\u003ch3\u003e30mm Double Dynamic Through Deck Block\u003c\/h3\u003e\n\u003cp\u003eDesigned to provide smooth, low-friction guidance for rope and wire control lines passing through a deck, this 30mm Double Dynamic Through Deck Block delivers reliable performance in adjustable rigging and other highly loaded applications. Its hard-wearing acetal body is precisely shaped to support the sheaves and ensure efficient line control.\u003c\/p\u003e\n\u003cp\u003eFeaturing our patented Dynamic Bearing Technology, each sheave uses twin rows of stainless steel ball bearings running on a stainless steel rail, providing superior load-carrying capability and longevity compared to systems that run on plastic rails.\u003c\/p\u003e\n\u003ch4\u003eKey Features:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTwin 30mm dynamic sheaves\u003c\/li\u003e\n\u003cli\u003ePatented Dynamic Bearing Technology\u003c\/li\u003e\n\u003cli\u003eTwin rows of stainless steel ball bearings\u003c\/li\u003e\n\u003cli\u003eStainless steel rail for superior durability\u003c\/li\u003e\n\u003cli\u003eHard-wearing acetal body\u003c\/li\u003e\n\u003cli\u003eSmooth, low-friction performance\u003c\/li\u003e\n\u003cli\u003eExcellent load-carrying capability\u003c\/li\u003e\n\u003cli\u003eIdeal for adjustable rigging and high-load applications\u003c\/li\u003e\n\u003cli\u003eSuitable for rope and wire control lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196765249911,"sku":"A2132","price":45.37,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A213220resized-2.jpg?v=1781800527"},{"product_id":"double-through-deck-block","title":"30mm Double High Load Through Deck Block","description":"\u003ch3\u003e30mm Double High Load Through Deck Block\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e30mm Double High Load Through Deck Block\u003c\/strong\u003e provides smooth, efficient guidance for rope and wire control lines passing through a deck. Designed for adjustable rigging and other high-load applications, it features a durable acetal body precisely shaped to support the sheaves and deliver reliable performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDouble-sheave through deck design for efficient line routing\u003c\/li\u003e\n\u003cli\u003eSuitable for rope and wire control lines\u003c\/li\u003e\n\u003cli\u003eDurable acetal body engineered for demanding applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlain Bearing Sheaves\u003c\/strong\u003e designed to handle high loads without the risk of bearing system failure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Load Stainless-Steel Sheaves\u003c\/strong\u003e for improved durability and enhanced performance when used with wire\u003c\/li\u003e\n\u003cli\u003eIdeal for leading rigging wire through decks and other surfaces\u003c\/li\u003e\n\u003cli\u003eReliable, low-maintenance solution for high-load rigging applications\u003c\/li\u003e\n\u003cli\u003eDesigned for smooth and efficient operation in demanding marine environments\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196765282679,"sku":"A2132HL","price":85.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/A2132HL.jpg?v=1781800530"},{"product_id":"sa-94-adaptor-for-a-94","title":"Adaptor For A..94","description":"\u003cp\u003eAdaptor For A..94\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":57196882133367,"sku":"SA..94","price":13.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/7087\/9863\/files\/SA..94.jpg?v=1781801658"}],"url":"https:\/\/allenbrothers.co.uk\/collections\/plastic-sheave-boxes.oembed","provider":"Allen | Performance Sailing Hardware","version":"1.0","type":"link"}