{"product_id":"ronstan-series-55-orbit-block-triple-with-becket","title":"Ronstan Series 55 Orbit Block Triple with Becket","description":"\u003cp\u003e\u003cstrong\u003eRonstan Series 55 Orbit Block Triple with Becket\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLightweight\u003c\/strong\u003e\u003c\/p\u003e\n\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 minimises the mass of the inactive return race and hub. Weight 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. Multi-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\n\u003cp\u003e\u003cstrong\u003eHighest working load in its class\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximises 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. The floating sheave and bearing system is supported by a fibre-reinforced load frame. The design was computer modelled to be stress optimised. The Dyneema® Link is produced from FSE Robline 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\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\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.\u003c\/li\u003e\n\u003cli\u003eStainless steel shackle head and compatibility with sharp fixing points.\u003c\/li\u003e\n\u003cli\u003eUltra low profile integrated beckets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePin Ø (in): 3\/16\u003c\/li\u003e\n\u003cli\u003eMax. Rope diameter (in): 3\/8\u003c\/li\u003e\n\u003cli\u003eSheave diameter (in): 2 5\/32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBall bearings - High compression strength carbon black Acetal. Stage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon. Frame\/Cheeks - Toughened, glass fibre reinforced Nylon. Rope Link: UV stabilised, multi-strand impregmented SK75 Dyneema®Head fitting: grade 316 stainless steel. Ball Bearings: high compression strength carbon black Acetal\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ronstan Sailboat Hardware","offers":[{"title":"Default Title","offer_id":53594463273332,"sku":"RONRF55310","price":136.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/4004\/9524\/files\/RONRF55310-2__51703.jpg.1428984928.jpg?v=1761730502","url":"https:\/\/velasailingsupply.com\/products\/ronstan-series-55-orbit-block-triple-with-becket","provider":"Vela Sailing Supply","version":"1.0","type":"link"}