{"title":"Ronstan Series 40 Sailing Blocks","description":"\u003cp\u003eBrowse Ronstan Series 40 sailing blocks in the listed sheave, head and attachment configurations. Compare line capacity, mounting details and model-specific load information.\u003c\/p\u003e\u003cp\u003eReview the individual product dimensions, manufacturer model and included components before selecting your installation.\u003c\/p\u003e","products":[{"product_id":"ronstan-series-25-t-track-composite-slide-series-40-bb-orbit-block-stand-up-suits-9mm-5-16-rope-55019","title":"Ronstan Series 25 T-Track - Composite Slide - Series 40 BB Orbit Block™ - Stand Up - Suits 9mm(5\/16\") Rope MPN - RC72536S","description":"\u003cb\u003eSeries 25 T-Track - Composite Slide - Series 40 BB Orbit Block 153; - Stand Up - Suits 9mm(5\/16\") Rope\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eFor small keel boats and sportsboats T-track jib leads are a great blend of performance and functionality in a simple, efficient package. Composite slide bodies with plunger stops run on anodised aluminium track, and allow quick and easy manual adjustment. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eLightweight\u003c\/b\u003e\u003cbr\u003eComposite jib lead cars continue the design philosophy of the award winning Ronstan BB and RT Orbit Blocks™, with virtually all metal components now replaced with high-tech polymers and fiber equivalents. The car design has been modelled and optimised using finite element analysis and rapid prototyping techniques to achieve maximum strength-to-weight characteristics. Orbit Block™ models use a Dyneema® Link which is 10 times stronger and lighter than steel, to provide the articulated connection between block and car.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIntegrated Functionality\u003c\/b\u003e\u003cbr\u003eThe clever 2-piece car body is molded from a composite material that delivers low friction on the alloy track without the need for separate inserts. It also provides the required mechanical strength without the weight and corrosion drawbacks of metal parts. An integrated becket at the forward end of the car suits 2:1 sheet systems and the removable threaded pin allows easy fitting of alternate blocks and accessories.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLow Profile and Compact\u003c\/b\u003e\u003cbr\u003eSleek styling and the positioning of the attachment pin provide a low lead aft for the lead block. The Dyneema® Link allows full articulation. The plunger stop button has a flush finish and the contoured form of the car eliminates the chance of lines and sails becoming snagged.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePrecise Adjustment\u003c\/b\u003e\u003cbr\u003eThe ergonomic plunger stop toggle combined with low friction of the car body allows for easy one-handed adjustment. The toggle is located at the rear of the car for easy access from the cockpit on sports boats and small keel boats. An arrow is located on the side to indicate the position of the stop for repeatable settings. A 'Racing' track has 25mm(63\/64\") stop hole spacing for even more precise control of the car position and sheeting angle.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow profile and lightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRemovable attachment pin to suit either Dyneema® Link or a shackle\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIntegrated becket for 2:1 headsail sheet systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003eHeadsail sheet leads on boats up to 8M (26').\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003eToughened, glass fibre reinforced Nylon slide.\u003cbr\u003e\u003cbr\u003eD\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eLength:\u003c\/b\u003e\t102mm(4\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t325kg(715lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t700kg(1,540lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t144g(5.1oz)","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385916772514,"sku":"55019","price":119.68,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55019XL.jpg?v=1765315536"},{"product_id":"ronstan-series-40-all-purpose-block-single-universal-head-55201","title":"Ronstan Series 40 All Purpose Block - Single - Universal Head MPN - RF41100","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t71g(2.5oz)","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385926799522,"sku":"55201","price":29.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55201XL.jpg?v=1765315689"},{"product_id":"ronstan-series-40-all-purpose-block-single-loop-top-55202","title":"Ronstan Series 40 All Purpose Block - Single - Loop Top MPN - RF41101","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Loop Top\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t54g(1.9oz)\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385926897826,"sku":"55202","price":24.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55202XL.jpg?v=1765315691"},{"product_id":"ronstan-series-40-all-purpose-block-single-becket-universal-head-55203","title":"Ronstan Series 40 All Purpose Block - Single - Becket - Universal Head MPN - RF41110","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Becket - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.  Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF150 Shackle, RF41010 Replacement Becket Pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e 5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t80g(2.8oz)","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385926930594,"sku":"55203","price":39.66,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55203XL.jpg?v=1765315691"},{"product_id":"ronstan-series-40-all-purpose-block-single-stand-up-55205","title":"Ronstan Series 40 All Purpose Block - Single - Stand Up MPN - RF41140","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Stand Up\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.  Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMount with 2 x 5mm (3\/16\") fasteners (not supplied)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t800kg(1,760lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t72g(2.5oz)","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385927127202,"sku":"55205","price":42.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55205XL.jpg?v=1765315694"},{"product_id":"ronstan-series-40-all-purpose-block-single-becket-loop-top-55204","title":"Ronstan Series 40 All Purpose Block - Single - Becket - Loop Top MPN - RF41111","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Stand Up\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.  Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF41010 Replacement Becket Pin\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t61g(2.2oz)","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385927094434,"sku":"55204","price":36.82,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55204XL.jpg?v=1765315694"},{"product_id":"ronstan-series-40-all-purpose-block-single-cheek-55206","title":"Ronstan Series 40 All Purpose Block - Single - Cheek MPN - RF41151","description":"\u003cb\u003eSeries 40 All Purpose Block - Single - Cheek\u003c\/b\u003e\u003cbr\u003e\u003cbr\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. Can be mounted on masts and booms using the curved surface adapter. Can be stacked to create a double version, but no more than 60% of the rated working load should be applied to the upper sheave.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMount with 3 x 5mm (3\/16\") fasteners (not supplied)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t400kg(880lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t66g(2.3oz)\u003cbr\u003e\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385927258274,"sku":"55206","price":42.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55206XL.jpg?v=1765315697"},{"product_id":"ronstan-series-40-ball-bearing-block-single-universal-head-55210","title":"Ronstan Series 40 Ball Bearing Block - Single - Universal Head MPN - RF40100","description":"\u003cb\u003eSeries 40 Ball Bearing Block - Single - Universal Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003ePin Ø:\u003c\/b\u003e    5mm(3\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t350kg(770lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t1,000kg(2,200lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t70g(2.5oz)\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385927389346,"sku":"55210","price":38.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55210XL.jpg?v=1765315699"},{"product_id":"ronstan-series-40-ball-bearing-block-single-stand-up-55211","title":"Ronstan Series 40 Ball Bearing Block - Single - Stand Up MPN - RF40140","description":"\u003cb\u003eSeries 40 Ball Bearing Block - Single - Stand Up\u003c\/b\u003e\u003cbr\u003e\u003cbr\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLightweight\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHalyard\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVang\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eU.V. Stabilized Acetal sheaves\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAcetal ball bearings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e\t10mm(7\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t350kg(770lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t800kg(1,7600lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t71g(2.5oz)\u003cbr\u003e\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385928896674,"sku":"55211","price":52.42,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55211XL.jpg?v=1765315700"},{"product_id":"ronstan-series-40-ratchet-orbit-block-single-auto-swivel-shackle-head-55220","title":"Ronstan Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head MPN - RF46100","description":"\u003cb\u003eSeries 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAutomatic Ratchet\u003c\/b\u003e\u003cbr\u003eWith automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAwesome Ratchet Block Holding Power\u003c\/b\u003e\u003cbr\u003eQuite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. The Series 40 delivers up to 14:1 holding power, almost double that of our nearest competititor.\u003cbr\u003e\u003cbr\u003eThe unique sheave design has 8 gripping faces which directly resist loaded line movement. Traditional designs have an angled resistance to line movement.  Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSimple and Secure Attachment\u003c\/b\u003e\u003cbr\u003eThe Dyneema® Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins.\u003cbr\u003e\u003cbr\u003eThe system is compatible with Dyneema®\/Spectra® strops, webbing and carbon connection points - much more so than steel loop tops or shackles.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSmooth Easing of Sheets\u003c\/b\u003e\u003cbr\u003eWith auto models the sheet runs out smoothly and freely as soon as the ratchet mechanism disengages. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eLow Profile Stand-Up Kit Allows  0™ or 90™ Alignment\u003c\/b\u003e\u003cbr\u003eStand-up kits feature a clatter-free rubber boot.  You can attach the Dyneema® link so that the block is aligned with the stand-up base or across it.  It's a neat low-profile solution which allows full articulation.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eUp to 14:1 holding power - highest available!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth easing of sheets\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFully Automatic load sensing ratchet engagemen\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlmited block rotation\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability and compatibility with harsh fixing points\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eDinghy mainsheet systems\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet fine tune systems on sportsboats \u0026amp; small keel boats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMainsheet systems on sportsboats using RF7 mainsheet swivel cleat unit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpinnaker and job sheets on dinghies - especially modern asymmetric classes\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eSheave: Hard anodised Aluminium\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks: Toughened, glass fiber reinforced Nylon\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eSheave Ø:\u003c\/b\u003e\t40mm(1-9\/16\")\u003cbr\u003e\u003cb\u003eMax. Rope Ø:\u003c\/b\u003e    9mm(5\/16\")\u003cbr\u003e\u003cb\u003eM.W.L.:\u003c\/b\u003e\t175kg(385lbs)\u003cbr\u003e\u003cb\u003eB. L.:\u003c\/b\u003e\t500kg(1,100lbs)\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\t44g(1.5oz)","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46385929617570,"sku":"55220","price":90.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/55220XL.jpg?v=1765315711"},{"product_id":"ronstan-series-40-all-purpose-block-double-block-full-swivel-head-65757","title":"Ronstan Series 40 All Purpose Block - Double Block - Full Swivel Head MPN - RF41200","description":"\u003cb\u003eSeries 40 All Purpose Block - Double Block - Full Swivel Head\u003c\/b\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\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 swivels freely.\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eTwo way head post\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 40mm(1-9\/16\")\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 10mm(7\/16\")\u003c\/li\u003e\n\u003cli\u003ePin Ø: 5mm(3\/16\")\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 600kg(1,320lbs)\u003c\/li\u003e\n\u003cli\u003eB. L.: 1,200kg(2,650lbs)\u003c\/li\u003e\n\u003cli\u003eWeight: 135g(4.8oz)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386241634466,"sku":"65757","price":65.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/65757XL.jpg?v=1765320299"},{"product_id":"ronstan-series-40-all-purpose-block-triple-swivel-head-70600","title":"Ronstan Series 40 All Purpose Block - Triple - Swivel Head MPN - RF41300","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 All Purpose Block - Triple - Swivel Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eTwo way head post\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF41010 Replacement Becket Pin, RF150 Shackle\u003c\/li\u003e\n\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilised Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003cli\u003eSheave: UV stabilised acetal\u003c\/li\u003e\n\u003cli\u003eCheeks: Impact modified, fiber reinforced and UV stabilized nylon\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368151714,"sku":"70600","price":99.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70600XL.jpg?v=1765322565"},{"product_id":"ronstan-series-40-all-purpose-block-triple-becket-swivel-head-70601","title":"Ronstan Series 40 All Purpose Block - Triple - Becket - Swivel Head MPN - RF41310","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 All Purpose Block - Triple - Becket - Swivel Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eTwo way head post\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\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.Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilised Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003cli\u003eSheave: UV stabilised acetal\u003c\/li\u003e\n\u003cli\u003eCheeks: Impact modified, fiber reinforced and UV stabilized nylon\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368315554,"sku":"70601","price":109.1,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70601XL.jpg?v=1765322567"},{"product_id":"ronstan-series-40-all-purpose-block-single-upright-lead-70602","title":"Ronstan Series 40 All Purpose Block - Single Upright Lead MPN - RF41171","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 All Purpose Block - Single Upright Lead\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eTypically used for halyards at the mast base.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUV stabilised acetal sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load housing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368282786,"sku":"70602","price":58.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70602XL.jpg?v=1765322567"},{"product_id":"ronstan-series-40-all-purpose-block-fiddle-70603","title":"Ronstan Series 40 All Purpose Block - Fiddle MPN - RF41500","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 All Purpose Block - Fiddle\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF41500 Replacement Becket Pin, RF150 Shackle\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eIdeal for fine-tune mainsheet tackles, cunninghams, backstays and other control line purchase systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilized Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368413858,"sku":"70603","price":62.33,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70603XL.jpg?v=1765322570"},{"product_id":"ronstan-series-40-all-purpose-block-fiddle-becket-70604","title":"Ronstan Series 40 All Purpose Block - Fiddle - Becket MPN - RF41510","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 All Purpose Block - Fiddle - Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF41010 Replacement Becket Pin, RF150 Shackle\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eIdeal for fine-tune mainsheet tackles, cunninghams, backstays and other control line purchase systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilised Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368446626,"sku":"70604","price":66.59,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70604XL.jpg?v=1765322570"},{"product_id":"ronstan-series-40-all-purpose-block-fiddle-cleat-70605","title":"Ronstan Series 40 All Purpose Block - Fiddle - Cleat MPN - RF41520","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 All Purpose Block - Fiddle - Cleat\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eMulti-position cleat arm\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eIdeal for fine-tune mainsheet tackles, cunninghams, backstays and other control line purchase systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilised Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368577698,"sku":"70605","price":131.78,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70605XL.jpg?v=1765322572"},{"product_id":"ronstan-series-40-all-purpose-block-fiddle-becket-cleat-70606","title":"Ronstan Series 40 All Purpose Block - Fiddle - Becket - Cleat MPN - RF41530","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 All Purpose Block - Fiddle - Becket - Cleat\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\u003cli\u003eMulti-position cleat arm\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF41010 Replacement Becket Pin, RF150 Shackle\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position. Becket pin is removable so line can be spliced prior to fitting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eIdeal for fine-tune mainsheet tackles, cunninghams, backstays and other control line purchase systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilised Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368544930,"sku":"70606","price":136.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70606XL.jpg?v=1765322572"},{"product_id":"ronstan-series-40-all-purpose-block-single-cheek-70607","title":"Ronstan Series 40 All Purpose Block - Single Cheek MPN - RF41811","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 All Purpose Block - Single Cheek\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating sheave\u003c\/li\u003e\n\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.Can be mounted on masts and booms using the curved surface adapter. Can be stacked to create a double version, but no more than 60% of the rated working load should be applied to the upper sheave. Stackable with Ronstan Series 40 deck organizers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU.V. stabilised Acetal sheaves\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel bearing race\u003c\/li\u003e\n\u003cli\u003eAlloy cheek plates\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368708770,"sku":"70607","price":104.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70607XL.jpg?v=1765322575"},{"product_id":"ronstan-series-40-ball-bearing-block-single-loop-top-70611","title":"Ronstan Series 40 Ball Bearing Block - Single - Loop Top MPN - RF40101","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Block - Single - Loop Top\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli\u003eLow friction, 2-stage ball bearing system\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcetal ball bearings\u003c\/li\u003e\n\u003cli\u003eUV stabilised 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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368839842,"sku":"70611","price":31.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70611XL.jpg?v=1765322577"},{"product_id":"ronstan-series-40-high-load-block-single-70612","title":"Ronstan Series 40 High Load Block - Single MPN - RF40100HL","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 High Load Block - Single\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli\u003eSuitable for both rope or wire\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIdeal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHalyards\u003c\/li\u003e\n\u003cli\u003eBackstays\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNylatron® sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\u003cli\u003eImpact and U.V. resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386368938146,"sku":"70612","price":66.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70612XL.jpg?v=1765322579"},{"product_id":"ronstan-series-40-ball-bearing-block-single-becket-70613","title":"Ronstan Series 40 Ball Bearing Block - Single - Becket MPN - RF40110","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing\u003c\/strong\u003e \u003cstrong\u003eBlock - Single - Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. 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Precision molded Acetal sheaves 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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eTypically used for halyards at the mast base.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcetal ball bearings\u003c\/li\u003e\n\u003cli\u003eUV stabilized Acetal sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load housing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369101986,"sku":"70615","price":66.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70615XL.jpg?v=1765322584"},{"product_id":"ronstan-series-40-ball-bearing-block-double-becket-swivel-head-70617","title":"Ronstan Series 40 Ball Bearing Block - Double - Becket - Swivel Head MPN - 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\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. 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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\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcetal ball bearings\u003c\/li\u003e\n\u003cli\u003eUV stabilised 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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369331362,"sku":"70618","price":107.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70618XL.jpg?v=1765322588"},{"product_id":"ronstan-series-40-ball-bearing-block-triple-becket-swivel-head-70619","title":"Ronstan Series 40 Ball Bearing Block - Triple - Becket - Swivel Head MPN - RF40310","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Block - Triple - Becket - Swivel Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli\u003eFeatures a swivel shackle head for full 360° rotation\u003c\/li\u003e\n\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.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369364130,"sku":"70619","price":119.02,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70619XL.jpg?v=1765322588"},{"product_id":"ronstan-series-40-ball-bearing-block-fiddle-70620","title":"Ronstan Series 40 Ball Bearing Block - Fiddle MPN - RF40500","description":"\u003cp\u003e\u003cstrong\u003eS\u003c\/strong\u003e\u003cstrong\u003eeries 40 Ball Bearing Block - Fiddle\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eLow friction, 2-stage ball bearing system\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eTypically used in direct 4:1 purchase systems such as mainsheets and boom vangs\u003c\/li\u003e\n\u003cli\u003eOn larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcetal 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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369462434,"sku":"70620","price":70.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70620XL.jpg?v=1765322590"},{"product_id":"ronstan-series-40-ball-bearing-block-fiddle-becket-70621","title":"Ronstan Series 40 Ball Bearing Block - Fiddle - Becket MPN - RF40510","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Block - Fiddle - Becket\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eTypically used in direct 4:1 purchase systems such as mainsheets and boom vangs\u003c\/li\u003e\n\u003cli\u003eOn larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcetal 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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369495202,"sku":"70621","price":76.51,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70621XL.jpg?v=1765322590"},{"product_id":"ronstan-series-40-ball-bearing-block-fiddle-cleat-70622","title":"Ronstan Series 40 Ball Bearing Block - Fiddle - Cleat MPN - RF40520","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Block - Fiddle - Cleat\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eMulti-position cleat arm\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eTypically used in direct 3:1 purchase systems such as mainsheets and boom vangs\u003c\/li\u003e\n\u003cli\u003eOn larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcetal 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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369626274,"sku":"70622","price":116.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70622XL.jpg?v=1765322593"},{"product_id":"ronstan-series-40-ball-bearing-block-fiddle-becket-cleat-70623","title":"Ronstan Series 40 Ball Bearing Block - Fiddle - Becket - Cleat MPN - RF40530","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Block - Fiddle - Becket - Cleat\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLow friction Acetal or Torlon® bearing system\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\u003cli\u003eMulti-position cleat arm\u003c\/li\u003e\n\u003cli\u003eLow friction, 2-stage ball bearing system\u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity\u003c\/li\u003e\n\u003cli\u003eLightweight\u003c\/li\u003e\n\u003cli\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\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.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Quick adjusting cleat arms require no tools to adjust and fix securely in position. Becket pin is removable so line can be spliced prior to fitting and is i\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet\u003c\/li\u003e\n\u003cli\u003eHalyard\u003c\/li\u003e\n\u003cli\u003eVang\u003c\/li\u003e\n\u003cli\u003eSpinnaker control lines on off-the-beach catamarans, one design classes and sportsboats  up to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eTypically used in direct 4:1 purchase systems such as mainsheets and boom vangs\u003c\/li\u003e\n\u003cli\u003eOn larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAcetal 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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369659042,"sku":"70623","price":120.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70623XL.jpg?v=1765322593"},{"product_id":"ronstan-series-40-ball-bearing-orbit-block-single-stand-up-swivel-head-70625","title":"Ronstan Series 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head MPN - RF45140","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Orbit Block - Single - Stand-Up Swivel Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUltra Lightweight\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eSwivel shackle head for unlimited block rotation -grade 316 stainless steel.\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head for ultimate durability with harsh fixing points.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eLightweight\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eKilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. 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 has a through-sheave becket arrangement. The result? The lowest weight 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 It's 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.\u003c\/p\u003e\u003cp\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized.\u003c\/p\u003e\u003cp\u003eRecommended fasteners - 2 x 4mm (5\/32\") countersunk head screws\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems on spinnaker sheet on dinghies to 5m (16ft)\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 5m (16ft)\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBall Bearings - High compression strength carbon black Acetal.\u003c\/li\u003e\n\u003cli\u003eStage 2 Bearing - Glass fiber reinforced, MoS2 impregnated Nylon\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fiber reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eSheave - Carbon fiber reinforced, PTFE impregnated Nylon\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369790114,"sku":"70625","price":64.21,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70625XL.jpg?v=1765322596"},{"product_id":"ronstan-series-40-ball-bearing-orbit-block-single-becket-cleat-swivel-head-70624","title":"Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head MPN - RF45130","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUltra Lightweight\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\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\u003eLightweight\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eKilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. 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 has a through-sheave becket arrangement. The result? The lowest weight 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 It's 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.\u003c\/p\u003e\u003cp\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems on spinnaker sheet on dinghies to 5m (16ft)\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 5m (16ft)\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBall Bearings - High compression strength carbon black Acetal.\u003c\/li\u003e\n\u003cli\u003eStage 2 Bearing - Glass fibre reinforced, MoS2 impregnated Nylon\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eSheave - Carbon fiber reinforced, PTFE impregnated Nylon\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369822882,"sku":"70624","price":119.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70624XL.jpg?v=1765322596"},{"product_id":"ronstan-series-40-ball-bearing-orbit-block-cheek-70626","title":"Ronstan Series 40 Ball Bearing Orbit Block - Cheek MPN - RF45151","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Orbit Block - Cheek\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUltra Lightweight\u003c\/li\u003e\n\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003c\/li\u003e\n\u003cli\u003eHighest working load in its class\u003c\/li\u003e\n\u003cli\u003eLow profile and compact\u003c\/li\u003e\n\u003cli\u003eHigh performance cleating\u003c\/li\u003e\n\u003cli\u003eBase suits curved mounting surface\u003c\/li\u003e\n\u003cli\u003eLow mounting points for maximum strength\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eLightweight\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eKilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. 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 has a through-sheave becket arrangement. The result? The lowest weight 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 It's 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.\u003c\/p\u003e\u003cp\u003eThe floating sheave and bearing system is supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized.\u003c\/p\u003e\u003cp\u003eRecommended fasteners - 3 x 4mm (5\/32\") countersunk head screws\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet systems on spinnaker sheet on dinghies to 5m (16ft)\u003c\/li\u003e\n\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 5m (16ft)\u003c\/li\u003e\n\u003cli\u003eHalyard, vang and backstay applications on boats to 8m (26ft)\u003c\/li\u003e\n\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBall Bearings - High compression strength carbon black Acetal.\u003c\/li\u003e\n\u003cli\u003eStage 2 Bearing - Glass fibre reinforced, MoS2 impregnated Nylon\u003c\/li\u003e\n\u003cli\u003eFrame\/Cheeks - Toughened, glass fibre reinforced Nylon\u003c\/li\u003e\n\u003cli\u003eSheave - Carbon fiber reinforced, PTFE impregnated Nylon\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386369921186,"sku":"70626","price":39.66,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70626XL.jpg?v=1765322598"},{"product_id":"ronstan-series-40-all-purpose-block-double-becket-70684","title":"Ronstan Series 40 All Purpose Block - Double - Becket MPN - 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\n\u003cli\u003eExceptionally high working loads\u003c\/li\u003e\n\u003cli\u003eLow maintenance, long service life\u003c\/li\u003e\n\u003cli\u003eSelf-lubricating Acetal polymer sheave ensures low friction and extreme durability\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003cli\u003eLockable swiveling head post\u003c\/li\u003e\n\u003cli\u003eSnap fit removable becket pin\u003c\/li\u003e\n\u003cli\u003eSpare parts - RF51010 Replacement Becket Pin, RF151 shackle\u003c\/li\u003e\n\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. Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tool\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft)\u003c\/li\u003e\n\u003cli\u003eS60 - on boats up to 12m (40ft)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGrade 316 stainless steel load strap\u003c\/li\u003e\n\u003cli\u003eImpact and UV resistant, fiber reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46386370740386,"sku":"70684","price":114.73,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/70684XL.jpg?v=1765322614"},{"product_id":"ronstan-series-40-orbit-ball-bearing-exit-block-97298","title":"Ronstan Series 40 Orbit Ball Bearing Exit Block MPN - RF45711","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit Ball Bearing Exit Block\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 also 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 extremely 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 are adjustable for setting to 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 880\/1760 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 4410 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 9.5 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290013858,"sku":"97298","price":137.89,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97298XL.jpg?v=1765337571"},{"product_id":"ronstan-series-40-ball-bearing-exit-block-hhl-97299","title":"Ronstan Series 40 Ball Bearing Exit Block HHL MPN - RF45711HL","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing Exit Block HHL\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 also 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 extremely 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 are adjustable for setting to 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 2200 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 4410 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 9.5 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290144930,"sku":"97299","price":237.17,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97299XL.jpg?v=1765337573"},{"product_id":"ronstan-series-40-ball-bearing-all-purpose-exit-block-narrow-97300","title":"Ronstan Series 40 Ball Bearing All Purpose Exit Block Narrow MPN - RF45711N","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Ball Bearing All Purpose Exit Block Narrow\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 also 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 extremely 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 are adjustable for setting to 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. 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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 also 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 extremely 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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 5\/16 in.\u003c\/li\u003e\n\u003cli\u003ePin Ø: 5\/32\"\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 1320 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 3650 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 9.5 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290472610,"sku":"97302","price":386.1,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97302XL.jpg?v=1765337576"},{"product_id":"ronstan-series-40-orbit-rt-block-w-quin-becket-cleat-swivel-97303","title":"Ronstan Series 40 Orbit RT Block with Quin, Becket, Cleat \u0026 Swivel MPN - RF46530","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit RT Block with Quin, Becket, Cleat \u0026amp; Swivel\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 also 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 extremely 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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 5\/16 in.\u003c\/li\u003e\n\u003cli\u003ePin Ø: 5\/32\"\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 1320 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 2650 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 13.0 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290570914,"sku":"97303","price":684.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97303XL.jpg?v=1765337579"},{"product_id":"ronstan-series-40-orbit-single-block-w-becket-swivel-head-97306","title":"Ronstan Series 40 Orbit Single Block with Becket \u0026 Swivel Head MPN - RF48100","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit Single Block with Becket \u0026amp; Swivel Head\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\n\u003cli\u003eClass-leading dynamic and static load ratings\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\u003cli\u003eStainless steel shackle head for unlimited block rotation, and compatibility with sharp fixing points\u003c\/li\u003e\n\u003cli\u003eIntegrated becket\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003ePin Ø: 5\/32\"\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 880 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 1760 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 2.1 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290734754,"sku":"97306","price":48.14,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97306XL.jpg?v=1765337581"},{"product_id":"ronstan-series-40-orbit-single-rotating-snatch-block-w-becket-lashing-option-97307","title":"Ronstan Series 40 Orbit Single Rotating Snatch Block with Becket \u0026 Lashing Option MPN - RF48109","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit Single Rotating Snatch 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 content 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\n\u003cli\u003eClass-leading dynamic and static load ratings\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\u003cli\u003eCan be opened and used as a snatch block\u003c\/li\u003e\n\u003cli\u003eIntegrated becket\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 880 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 1760 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 1.7 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290833058,"sku":"97307","price":41.37,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97307XL.jpg?v=1765337584"},{"product_id":"ronstan-series-40-orbit-single-rotating-snatch-block-hhl-w-becket-lashing-option-97308","title":"Ronstan Series 40 Orbit Single Rotating Snatch Block HHL with Becket \u0026 Lashing Option MPN - RF48109HL","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit Single Rotating Snatch Block HHL 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 content 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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 2200 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 6610 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 3.4 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387290865826,"sku":"97308","price":206.61,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97308XL.jpg?v=1765337584"},{"product_id":"ronstan-series-40-orbit-single-bb-block-w-cleat-swivel-97309","title":"Ronstan Series 40 Orbit Single BB Block with Cleat \u0026 Swivel MPN - RF48120","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit Single BB Block with Cleat \u0026amp; Swivel\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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. 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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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 880 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 1760 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 2.5 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387291029666,"sku":"97310","price":59.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97310XL.jpg?v=1765337586"},{"product_id":"ronstan-series-40-orbit-bb-cheek-block-97311","title":"Ronstan Series 40 Orbit BB Cheek Block MPN - RF48151","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit BB Cheek Block\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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 880 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 1760 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 1.2 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387291160738,"sku":"97311","price":68.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97311XL.jpg?v=1765337588"},{"product_id":"ronstan-series-40-orbit-bb-double-block-w-swivel-shackle-97312","title":"Ronstan Series 40 Orbit BB Double Block with Swivel \u0026 Shackle MPN - RF48200","description":"\u003cp\u003e\u003cstrong\u003eSeries 40 Orbit BB Double Block with Swivel \u0026amp; 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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003ePin Ø: 5\/32\"\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 1320 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 2650 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 4.2 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387291193506,"sku":"97312","price":107.05,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97312XL.jpg?v=1765337589"},{"product_id":"ronstan-series-40-orbit-bb-double-block-w-becket-swivel-shackle-97314","title":"Ronstan Series 40 Orbit BB Double Block with Becket \u0026 Swivel Shackle MPN - 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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003ePin Ø: 5\/32\"\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 1320 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 2650 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 4.6 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387291324578,"sku":"97314","price":117.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97314XL.jpg?v=1765337591"},{"product_id":"ronstan-series-40-orbit-bb-double-block-w-becket-lashing-option-97313","title":"Ronstan Series 40 Orbit BB Double Block with Becket \u0026 Lashing Option MPN - 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\n\u003cli\u003eClass-leading dynamic and static load ratings\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, off-the-beach 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\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSheave Ø: 1-9\/16 in.\u003c\/li\u003e\n\u003cli\u003eMax. Rope Ø: 3\/8 in.\u003c\/li\u003e\n\u003cli\u003eM.W.L.: 1320 lb.\u003c\/li\u003e\n\u003cli\u003eB. L.: 2650 lb.\u003c\/li\u003e\n\u003cli\u003eWeight: 3.0 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":46387291357346,"sku":"97313","price":80.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0696\/3170\/5250\/files\/97313XL.jpg?v=1765337592"}],"url":"https:\/\/marinerswarehouse.com\/collections\/ronstan-series-40-sailing-blocks.oembed","provider":"Mariners Warehouse Shop","version":"1.0","type":"link"}