{"title":"Ronstan Blocks","description":"\u003cp\u003eUnder Construction\u003c\/p\u003e","products":[{"product_id":"ronstan-series-20-ball-bearing-block-triple","title":"Ronstan Series 20 Ball Bearing Triple Block with Shackle - RF20302","description":"\u003cp style=\"font-size: 16px;\"\u003eTriple Ball bearing block with sheaves that are 20mm in diameter. Ideal for powerful purchase systems on dingy vangs, rig tensioning systems on skiffs etc.\u003c\/p\u003e \u003cp style=\"font-size: 16px;\"\u003ePrecision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance \u0026amp; low friction. Two-way head - can be fixed at 0 or 90 degrees.\u003c\/p\u003e \u003cdiv\u003e \u003cul style=\"margin-top: -5px;\"\u003e \u003cli style=\"font-size: 16px;\"\u003eLow friction.\u003c\/li\u003e \u003cli style=\"font-size: 16px;\"\u003eHigh static and dynamic load capacity.\u003c\/li\u003e \u003cli style=\"font-size: 16px;\"\u003eLightweight.\u003c\/li\u003e \u003cli style=\"font-size: 16px;\"\u003eExcellent for Dingy control lines, dingy vangs, cunninghams, and Traveler controls.\u003cbr\u003e \u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":31050527506466,"sku":"RF20302","price":45.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/products\/RF20302.jpg?v=1747155946"},{"product_id":"ronstan-series-40-high-load-block-single","title":"Ronstan 40mm Single Series 40 High Load Block - RF40100HL","description":"\u003cp\u003eIdeal for high load applications. Wear resistant nylatron 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\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\u003eSitable for both rope or wire\u003c\/li\u003e\n\u003cli\u003eCaptive Lock universal head\u003c\/li\u003e\n\u003cli\u003eSlotted pin shackle elimates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":31050527572002,"sku":"RF40100HL","price":56.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/products\/RF40100HL.jpg?v=1747155945"},{"product_id":"ronstan-series-50-ball-bearing-block-single","title":"Ronstan 50mm Single Series 50 Ball Bearing Block - RF50100","description":"\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\n\u003cdiv\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul style=\"margin-top: -5px;\"\u003e\n\u003cli style=\"font-size: 16px;\"\u003eLow friction, 2-stage ball bearing system\u003c\/li\u003e\n\u003cli style=\"font-size: 16px;\"\u003eHigh static and dynamic load capacity\u003c\/li\u003e\n\u003cli style=\"font-size: 16px;\"\u003eLightweight\u003c\/li\u003e\n\u003cli style=\"font-size: 16px;\"\u003eCheek cut-outs for easy bearing maintenance\u003c\/li\u003e\n\u003cli style=\"font-size: 16px;\"\u003eCaptive Lock™ universal head\u003c\/li\u003e\n\u003cli style=\"font-size: 16px;\"\u003eSlotted pin shackle eliminates fouled lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cul style=\"margin-top: -5px;\"\u003e\n\u003cli style=\"font-size: 16px;\"\u003eMainsheet\u003c\/li\u003e\n\u003cli style=\"font-size: 16px;\"\u003eSpinnaker sheets\u003c\/li\u003e\n\u003cli style=\"font-size: 16px;\"\u003eHalyards and other primary applications on boats up to 10m (33ft)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":31050527637538,"sku":"RF50100","price":55.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/products\/RF50100.jpg?v=1747155944"},{"product_id":"rf48100-s40-bb-orbit-block-single-becket-swivel-head","title":"Ronstan 40mm Single Series 40 Ball Bearing Orbit Block with Swivel - RF48100","description":"\u003cp\u003eThe new Series 40 ball bearing Orbit Blocks‚Ñ¢ provide 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 fibre reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.\u003c\/p\u003e \u003cp\u003eThe RF48100 Single Block features a 40mm (1 9\/16\") sheave and incorporates our 2-stage bearing system. Ball bearings minimise friction while a secondary full-contact bearing maintains low friction across the full working load range. This product does not have a locking headpost, which is only available in the multiple sheave variants. RF48100 is free swivel rotation only. The RF48100 can accommodate a maximum rope diameter of 10mm (3\/8\").\u003c\/p\u003e \u003cp\u003eNote: This product does not have a locking headpost, which is only available in the multiple sheave variants. RF48100 is free swivel rotation only.\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":41512026243106,"sku":"RF48100","price":40.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/rf48100.jpg?v=1747155886"},{"product_id":"series-15-bb-block-single-swivel-head","title":"Ronstan Series 15 Ball Bearing Single Block with Swivel Shackle - RF15100","description":"\u003cul\u003e \u003cli\u003eSmallest and lightest ball bearing block available.\u003c\/li\u003e \u003cli\u003ePrecision moulded acetal sheave running on stainless steel ball bearings provide high performance \u0026amp; low friction.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572148600866,"sku":"RF15100","price":23.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF15100-400x400.jpg?v=1747155797"},{"product_id":"series-15-bb-block-single-loop-top","title":"Ronstan Series 15 Ball Bearing Single Block with Loop Top - RF15101","description":"\u003cp\u003eThe smallest and lighest ball bearing block available.\u003c\/p\u003e \u003cp\u003eThe Series 15 Ball Bearing Blocks feature stainless steel ball bearings in a 15mm sheave. Popular choices for dingy control lines, vangs, cunninghams, or tweakers. A variety of configurations create many opportunities for applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSmallest and lightest ball bearing block available.\u003c\/li\u003e \u003cli\u003ePrecision moulded acetal sheave running on stainless steel ball bearings provide high performance \u0026amp; low friction.\u003c\/li\u003e \u003cli\u003eSingle loop head blocks include an O-ring to separate running line from head lashing or fixing.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572148764706,"sku":"RF15101","price":13.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF15101-400x400.jpg?v=1747155797"},{"product_id":"series-15-bb-block-double","title":"Ronstan Series 15 Ball Bering Double Blockwith Loop Top - RF15202","description":"\u003cp\u003eDouble block with loop head, ideal for splicing\/lashing attachment or can be shackled using RF633S.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSmallest and lightest ball bearing block available.\u003c\/li\u003e \u003cli\u003ePrecision moulded acetal sheave running on stainless steel ball bearings provide high performance \u0026amp; low friction.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572148830242,"sku":"RF15202","price":26.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF15202-400x400.jpg?v=1747155796"},{"product_id":"series-15-bb-block-triple","title":"Ronstan Series 15 Ball Bearing Triple Block with Loop Top - RF15302","description":"\u003cp\u003eTriple Block, Loop Head suits splicing\/lashing attachment or can be shackled using RF633S.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSmallest and lightest ball bearing block available.\u003c\/li\u003e \u003cli\u003ePrecision moulded acetal sheave running on stainless steel ball bearings provide high performance \u0026amp; low friction.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572148863010,"sku":"RF15302","price":36.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF15302-400x400.jpg?v=1747155794"},{"product_id":"series-20-bb-block-single","title":"Ronstan Series 20 Ball Bearing Single Block with Swivel Shackle  - RF20100","description":"\u003cp\u003eSeries 20 Single Block, with Swivel Shackle Head.\u003c\/p\u003e \u003cp\u003ePrecision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance \u0026amp; low friction.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLow friction.\u003c\/li\u003e \u003cli\u003eHigh static and dynamic load capacity.\u003c\/li\u003e \u003cli\u003eLightweight.\u003c\/li\u003e \u003cli\u003eExcellent for Dinghy Control Lines \u0026amp; Traveller Lines\u003cbr\u003e \u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572149518370,"sku":"RF20100","price":23.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF20100.jpg?v=1747155787"},{"product_id":"series-20-bb-block-single-loop-top","title":"Ronstan Series 20 Ball Bearing Single Block with Loop Top - RF20101","description":"\u003cp\u003eSingle Block with Loop Top.\u003c\/p\u003e \u003cp\u003ePrecision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance \u0026amp; low friction. Can be fitted with a shackle in either of two planes to allow correct alignment of the block.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLow Friction\u003c\/li\u003e \u003cli\u003eHigh static and dynamic load capacity.\u003c\/li\u003e \u003cli\u003eLightweight.\u003c\/li\u003e \u003cli\u003eExcellent for Dingy Control Lines and Traveller Lines.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572149583906,"sku":"RF20101","price":13.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF20101.jpg?v=1747155786"},{"product_id":"series-20-bb-block-double","title":"Ronstan Series 20 Ball Bearing Double Block with Shackle - RF20202","description":"\u003cp\u003eDual Axis Shackle Head allows block to be oriented in either plane depending on application.\u003c\/p\u003e \u003cp\u003ePrecision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance \u0026amp; low friction. Two-way head can be fixed at 0 or 90 degrees.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eLow friction.\u003c\/li\u003e \u003cli\u003eHigh static and dynamic load capacity.\u003c\/li\u003e \u003cli\u003eLightweight.\u003c\/li\u003e \u003cli\u003eExcellent for Dinghy Control Lines \u0026amp; Traveller Lines\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572149682210,"sku":"RF20202","price":33.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF20202.jpg?v=1747155785"},{"product_id":"series-30-hl-block-single","title":"Ronstan 30mm Single Series 30 High Load Block with Swivel Shackle - RF30100HL","description":"\u003cp\u003eIdeal for high load applications. Wear resistant nylatron sheave material, in lightweight, self lubricating polymer, is suitable for use with wire or rope.\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\u003eSuitable for both rope or wire.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572150435874,"sku":"RF30100HL","price":36.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF30100HL.jpg?v=1747155775"},{"product_id":"series-30-bb-orbitblock-single-swivelshacklehead-becket","title":"Ronstan 30mm Single Series 30 Ball Bearing Orbit Block with Swivel Shackle - RF35100","description":"\u003cp\u003eBall Bearing Orbit Blocks boast the highest strength-to-weight ratio available. Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites. 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. The sheave and bearing system is supported by a fiber-reinforced load frame. The single swivel block allows for full articulation.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e   \u003cli\u003eDinghy Sail Systems and Yacht Control Lines\u003c\/li\u003e   \u003cli\u003eOffshore Fishing Snubbers and trolling Lead Pulleys\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e   \u003cul\u003e     \u003cli\u003eLightweight\u003c\/li\u003e     \u003cli\u003eHighest working load in its class\u003c\/li\u003e     \u003cli\u003eSecure, versatile and secure attachement\u003c\/li\u003e     \u003cli\u003eLow profile and compact\u003c\/li\u003e     \u003cli\u003eUltra low profile thru-sheave becket.\u003c\/li\u003e     \u003cli\u003eLow friction 2-stage ball bearing system provides consistent performance over the full working load range.\u003c\/li\u003e   \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eLightweight \u003c\/strong\u003eKilogram for kilogram of working load BB Orbit Blocks are the world‚Äôs lightest. To gain peak performance, Ronstan engineered out the heavy steel load straps, head post, shackle and cleating accessories. Through extensive research and development, Ronstan replaced virtually all metal components with high-tech polymers and fibre equivalents.\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. Other brands just link together their single blocks with a heavy steel channel across the top of the block, with unnecessary extra cheeks adding extra weight and bulk not found in Ronstan Orbit Blocks.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHighest working load in its class \u003c\/strong\u003eThe proven Ronstan 2-stage bearing system (Series 30 and larger) 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 sheave and bearing system is supported by a fibre-reinforced load frame, computer modelled and optimised using advanced stress analysis methods. The Dyneema Link, used in multi-sheave blocks, is produced from high spec SK75 fibre, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point. \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSimple, versatile and secure attachment \u003c\/strong\u003eThe single block is easily lashed to an attachment point, and can also accept Dyneema Links and shackles for a variety of efficient attachment alternatives. The Dyneema Link used in multi-sheave blocks is easily fitted and secured by a removable pin. The Dyneema¬Æ Link can also be removed and replaced by a shackle, custom lashing or strop. \u003c\/p\u003e \u003cp\u003eThese blocks are far more compatible with Dyneema\/Spectra lines, carbon laminate connection points and webbing than traditional blocks with steel loop tops or shackles.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eLow profile and compact \u003c\/strong\u003eThe two way head in the single lashing block allows for alignment at 0¬∞ or 90¬∞ orientation, while the single swivel block allows for full articulation.\u003c\/p\u003e \u003cp\u003eThe flexible Dyneema Link used in multi-sheave blocks provides 0¬∞ or 90¬∞ orientation. It connects directly to the head of the block rather than to an intermediate head post. This reduces weight and gives the lowest possible profile while allowing full articulation.\u003c\/p\u003e \u003cp\u003eBeckets have been carefully designed to minimise height.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHigh performance cleating \u003c\/strong\u003eRonstan BB Orbit Blocks‚Ñ¢ feature strong, lightweight fibre-reinforced cleat arms optimised at the required cleating angle. Race-proven, carbon-fibre reinforced Ronstan C-Cleats give secure rope holding with low entry and exit efforts, and are fitted with fairleads for fast action from any angle. *RF35100 \u0026amp; RF35100D have stainless steel head posts \u0026amp; shackles.\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572151058466,"sku":"RF35100","price":24.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF35100.jpg?v=1747155767"},{"product_id":"ser-40-single-block-swivel-head","title":"Ronstan 40mm Single Series 40 Ball Bearing Block with Universal Head - RF40100","description":"\u003cp\u003eSheaves running on Acetal or Torlon 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\u003cb\u003eFeatures\u003c\/b\u003e\u003c\/p\u003e \u003cul\u003e \t\u003cli\u003eLow friction Acetal bearing system.\u003c\/li\u003e \t\u003cli\u003eLightweight.\u003c\/li\u003e \t\u003cli\u003eCheek cut-outs for easy bearing maintenace.\u003c\/li\u003e \t\u003cli\u003eCaptive Lock universal head\u003c\/li\u003e \t\u003cli\u003eSlotted pin shackle elimiantes fouled lines.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572152107042,"sku":"RF40100","price":33.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF40100.jpg?v=1747155756"},{"product_id":"series-50-hl-block-single","title":"Ronstan 50mm Single Series 50 High Load Block - RF50100HL","description":"\u003cp\u003eSheaves running on Acetal or Torlon bearings provide high performance \u0026amp; low friction. The 2-stageball 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","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572154302498,"sku":"RF50100HL","price":70.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/RF50100HL.jpg?v=1747155739"},{"product_id":"core-block-series-60-single-replaces-rf868-rf68100","title":"Ronstan 60mm Single Series 60 Core Block - RF64100","description":"\u003cdiv class=\"pagebuilder-column-group\" data-background-images=\"{}\" data-content-type=\"column-group\" data-appearance=\"default\" data-grid-size=\"12\" data-element=\"main\" data-pb-style=\"YAPJ689\"\u003e\n\u003cdiv class=\"pagebuilder-column-line\" data-content-type=\"column-line\" data-element=\"main\" data-pb-style=\"R3N27HG\"\u003e\n\u003cdiv class=\"pagebuilder-column\" data-content-type=\"column\" data-appearance=\"full-height\" data-background-images=\"{}\" data-element=\"main\" data-pb-style=\"FVUJHU1\"\u003e\n\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp\u003eCore Blocks™ are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Universal Bearing -. Dynamic and high static load performance. The Ronstan Universal Bearing incorporates our proven 2-stage bearing system. Stage 1 - Under moderate loads, Acetal ball bearings ensure minimum friction. Stage 2 - Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished stainless steel race takes over, maintaining low friction performance. Additionally the ball bearings are configured to act as a thrust bearing between the sheave and cheeks, preventing the sheave from rubbing on the cheeks and causing friction when the line lead in and out of the block isn’t perfect. Particularly important for cheek blocks. Alloy cheek plates Block cheeks are manufactured from the highest quality alloy for maximum strength. Material optimisation and the cut-away design minimises weight and allows easy fresh water rinsing of salt and debris from the bearings. Cheek design has been further styled with flaring at the block throat and reduced gap between the cheek and sheave, minimising rope wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pagebuilder-column\" data-content-type=\"column\" data-appearance=\"full-height\" data-background-images=\"{}\" data-element=\"main\" data-pb-style=\"QQH3B2C\"\u003e\n\u003cdiv data-content-type=\"text\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp\u003eUniversal head assembly incorporates a brass bearing washer to provide smooth 360° rotation of the post and shackle. A set screw arrangement allows the head to be locked at 0° or 90°. Shackles are high quality forged grade 316 stainless steel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43572158103586,"sku":"RF64100","price":112.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/media_04fc2b3c-3118-4e44-a5d9-84473ef9d877.jpg?v=1747155711"},{"product_id":"ronstan-series-30-bb-block-single","title":"Ronstan 30mm Single Series 30 Ball Bearing Block with Swivel - RF30100","description":"\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 \u003cul\u003e\n\u003cli\u003eLow friction 2-stage ball bearing system provides consistent performance over the full working load range. \u003c\/li\u003e\n\u003cli\u003eHigh static and dynamic load capacity.   \u003c\/li\u003e\n\u003cli\u003eLight weight.\u003c\/li\u003e\n\u003cli\u003eVersatile head fittings.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":43763761119266,"sku":"RF30100","price":32.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/1208\/0418\/files\/rf30100.webp?v=1747155512"}],"url":"https:\/\/sailingservices.com\/collections\/ronstan-blocks.oembed","provider":"Sailing Services","version":"1.0","type":"link"}