{"title":"Marine Replacement Rigging Sheaves and Cassettes","description":"\u003cp\u003eExplore Marine Replacement Rigging Sheaves and Cassettes at Mariners Warehouse. Compare available products and review each listing for part numbers and specifications.\u003c\/p\u003e","products":[{"product_id":"ronstan-race-acetal-sheave-39mm-1-1-2-od-55154","title":"Ronstan Race Acetal Sheave - 39mm (1-1\/2\") OD MPN - RF251","description":"\u003cb\u003eRace Acetal Sheave Solid Bearing - 39mm(1-1\/2\") OD\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003eHigh strength \u0026amp; durability, utilizing the self-lubricating properties of Acetal","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385924276386,"sku":"55154","price":7.28,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55154XL.jpg?v=1765315646"},{"product_id":"ronstan-series-40-orbit-rt-sheave-replacement-cassette-97301","title":"Ronstan Series 40 Orbit RT Sheave Replacement Cassette MPN - RF46000","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit RT Sheave Replacement Cassette\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.\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClass-leading dynamic and static load ratings, highest in their class\u003c\/li\u003e\n\u003cli\u003eLightweight, yet strong. Toughened, glass fiber reinforced nylon replaces stainless steel straps used in our traditional utility blocks\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage ball bearing system for efficient and effortless trimming\u003c\/li\u003e\n\u003cli\u003eSoft attachment, lashing, and traditional swivel shackle head options\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems and spinnaker sheets on dinghies, OTB catamarans and sportsboats to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 9m (30ft)\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290439842,"sku":"97301","price":115.83,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97301XL.jpg?v=1765337576"},{"product_id":"ronstan-series-40-orbit-bb-sheave-97304","title":"Ronstan Series 40 Orbit BB Sheave MPN - RF48000","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit BB Sheave\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBall Bearing versions incorporate the 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave\u003c\/li\u003e\n\u003cli\u003eCaptive BB\u003c\/li\u003e\n\u003cli\u003eWidth: 15.5mm\/5\/8\"\u003c\/li\u003e\n\u003cli\u003eSheave Diameter: 40mm\/1-9\/16\"\u003c\/li\u003e\n\u003cli\u003eMaximum Rope: 10mm\/3\/8\"\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 400kg\/880lbs\u003c\/li\u003e\n\u003cli\u003eWeight: 30g\/1.1oz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290603682,"sku":"97304","price":26.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97304XL.jpg?v=1765337579"},{"product_id":"ronstan-series-40-orbit-bb-sheave-hhl-97305","title":"Ronstan Series 40 Orbit BB Sheave HHL MPN - RF48000HL","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit BB Sheave HHL\u003c\/strong\u003e\u003c\/p\u003e\u003cp\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\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave\u003c\/li\u003e\n\u003cli\u003eCaptive HHL\u003c\/li\u003e\n\u003cli\u003eWidth: 15.5mm\/5\/8\"\u003c\/li\u003e\n\u003cli\u003eSheave Diameter: 40mm\/1-9\/16\"\u003c\/li\u003e\n\u003cli\u003eMaximum Rope: 10mm\/3\/8\"\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 1500kg\/3310lbs\u003c\/li\u003e\n\u003cli\u003eWeight: 77g\/2.7oz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290701986,"sku":"97305","price":164.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97305XL.jpg?v=1765337582"},{"product_id":"barton-marine-64mm-diameter-ball-bearing-rope-sheave-99101","title":"Barton Marine 64mm Diameter Ball Bearing Rope Sheave MPN - 64914","description":"\u003cp\u003e\u003cstrong\u003e64mm Diameter Ball Bearing Rope Sheave\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA replacement all-purpose rope sheave. Used throughout the complete Barton block range. Molded from UV-resistant acetal resin, the Barton sheave is made to survive the harsh marine environment. The unique, super-low friction ball race system features Delrin balls running on a large diameter center boss, which ensures an extremely low friction performance.  \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOverall Diameter: 2-6\/10\" (64mm)\u003c\/li\u003e\n\u003cli\u003eHub Width: 0.71\" (18mm)\u003c\/li\u003e\n\u003cli\u003eBore: 0.24\" (6mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e*Sold as an Individual\u003c\/p\u003e","brand":"Barton Marine","offers":[{"title":"Default Title","offer_id":46387368198306,"sku":"99101","price":28.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/99101XL.jpg?v=1765338815"},{"product_id":"barton-marine-58mm-diameter-ball-bearing-rope-sheave-99102","title":"Barton Marine 58mm Diameter Ball Bearing Rope Sheave MPN - 64913","description":"\u003cp\u003e\u003cstrong\u003e58mm Diameter Ball Bearing Rope Sheave \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA replacement all-purpose rope sheave. Used throughout the complete Barton block range.  \u003c\/p\u003e\u003cp\u003eMolded from UV-resistant acetal resin, the Barton sheave is made to survive the harsh marine environment. The unique, super-low friction ball race system features Delrin balls running on a large diameter center boss, which ensures an extremely low friction performance.  \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOverall Diameter - 2- 3\/10\" (58mm)\u003c\/li\u003e\n\u003cli\u003eHub Width -  .71\" (18mm)\u003c\/li\u003e\n\u003cli\u003eBore - .24\" (6mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e*Sold as an Individual\u003c\/p\u003e","brand":"Barton Marine","offers":[{"title":"Default Title","offer_id":46387368296610,"sku":"99102","price":24.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/99102XL.jpg?v=1765338817"},{"product_id":"barton-marine-35mm-diameter-plain-bearing-sheave-99137","title":"Barton Marine 35mm Diameter Plain Bearing Sheave MPN - 64804","description":"\u003cp\u003e\u003cstrong\u003e35mm Diameter Plain Bearing Sheave\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA replacement all-purpose rope sheave.  Used throughout the complete Barton block range.  \u003c\/p\u003e\u003cp\u003eMolded from UV-resistant acetal resin, the Barton sheave is made to survive the harsh marine environment.   The unique, super-low friction ball race system runs on a large diameter center boss, which ensures an extremely low friction performance.  \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOverall Diameter - 1- 4\/10\" (35mm)\u003c\/li\u003e\n\u003cli\u003eHub Width -  .47\" (12mm)\u003c\/li\u003e\n\u003cli\u003eBore - .31\" (8mm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e*Sold as an Individual \u003c\/p\u003e","brand":"Barton Marine","offers":[{"title":"Default Title","offer_id":46387369607330,"sku":"99137","price":3.16,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/99137XL.jpg?v=1765338840"}],"url":"https:\/\/marinerswarehouse.com\/collections\/marine-replacement-rigging-sheaves-and-cassettes.oembed","provider":"Mariners Warehouse Shop","version":"1.0","type":"link"}