{"product_id":"60mm-double-core-block","title":"60mm Double Core Block","description":"\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.\u003c\/p\u003e\u003ch3\u003e\n\u003cbr\u003e\u003cbr\u003eFeautures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eClass leading performance and sleek, contemporary styling\u003c\/li\u003e\n\u003cli\u003eExcellent dynamic and high static load performance\u003c\/li\u003e\n\u003cli\u003eLess than half the friction of the nearest competitor\u003c\/li\u003e\n\u003cli\u003eRemovable threaded pin at shackle head\u003c\/li\u003e\n\u003cli\u003eCentral hub can be used as a becket take-off or tie-up point, Max 11.5mm line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\n\u003cbr\u003e\u003cbr\u003eUniversal Bearing\u003c\/h3\u003e\u003cp\u003eDynamic and high static load performance\u003c\/p\u003e\u003cp\u003eThe Ronstan Universal Bearing incorporates our proven 2-stage bearing system\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStage 1\u003c\/strong\u003e - Under moderate loads, Acetal ball bearings ensure minimum friction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStage 2\u003c\/strong\u003e - 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.\u003c\/p\u003e\u003cp\u003eAdditionally 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.\u003c\/p\u003e\u003ch3\u003e\n\u003cbr\u003e\u003cbr\u003eAlloy cheek plates\u003c\/h3\u003e\u003cp\u003eBlock 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\u003cp\u003e\u003cimg src=\"https:\/\/www.ronstan.com.au\/assets\/images\/IDP\/IDP028-A.jpg\" style=\"border-width: 0px; border-style: solid; height: 160px; width: 160px;\"\u003e\u003cimg src=\"https:\/\/www.ronstan.com.au\/assets\/images\/IDP\/IDP028-B.jpg\" style=\"border-width: 0px; border-style: solid; height: 160px; width: 160px;\"\u003e\u003cimg src=\"https:\/\/www.ronstan.com.au\/assets\/images\/IDP\/IDP028-C.jpg\" style=\"border-width: 0px; border-style: solid; height: 160px; width: 160px;\"\u003e\u003c\/p\u003e\u003ch3\u003eMaterials\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIdeal for mainsheet, halyard and spinnaker sheet applications on boats to 11m (36ft).\u003c\/li\u003e\n\u003cli\u003eVarious control line applications on larger yachts.\u003c\/li\u003e\n\u003cli\u003eAlloy sheave models are available for use with wire.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\n\u003cbr\u003e\u003cbr\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSheaves: U.V. stabilised Acetal\u003c\/li\u003e\n\u003cli\u003eCheek plates \u0026amp; cleat arms: Aluminium alloy\u003c\/li\u003e\n\u003cli\u003eBall Bearings: High compression strength carbon black Acetal\u003c\/li\u003e\n\u003cli\u003eShackle, post \u0026amp; hub: Grade 316 stainless steel\u003c\/li\u003e\n\u003cli\u003ePadeye \u0026amp; snap shackle: Grade 15-5PH stainless steel\u003c\/li\u003e\n\u003cli\u003eSnap shackle: Grade 15-5PH investment cast stainless steel\u003c\/li\u003e\n\u003cli\u003eCleat: Fibre reinforced composite\u003c\/li\u003e\n\u003cli\u003eShackle \u0026amp; hub: Grade 316 stainless steel\u003c\/li\u003e\n\u003cli\u003ePin: 2205 stainless steel.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\n\u003cbr\u003e\u003cbr\u003eProduct Specifications\u003c\/h3\u003e\u003ctable border=\"1\" cellpadding=\"0\" cellspacing=\"0\" style=\"width: 260px;\" width=\"100%\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth id=\"eight\"\u003eSheave Ø\u003c\/th\u003e\n\u003ctd id=\"eight\"\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax. Rope Ø\u003c\/th\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth id=\"eight\"\u003eMax. Cable Ø\u003c\/th\u003e\n\u003ctd id=\"eight\"\u003e- mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePin Ø\u003c\/th\u003e\n\u003ctd\u003e- mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth id=\"eight\"\u003eM.W.L.\u003c\/th\u003e\n\u003ctd id=\"eight\"\u003e1000 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eB. L.\u003c\/th\u003e\n\u003ctd\u003e2000 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth id=\"eight\"\u003eWeight\u003c\/th\u003e\n\u003ctd id=\"eight\"\u003e390 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":42772371701922,"sku":"8541746","price":247.66,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/1334\/9794\/products\/8541746.jpg?v=1666845335","url":"https:\/\/biasboating-au.myshopify.com\/products\/60mm-double-core-block","provider":"Bias Boating","version":"1.0","type":"link"}