{"product_id":"ronstan-rf15174-series-15-ball-bearing-utility-block-pivoting-lead-block","title":"Ronstan RF15174 Series 15 Ball Bearing Utility Block – Pivoting Lead Block","description":"\u003cp\u003e\u003cstrong\u003eSeries 15 Ball Bearing Utility Block - Pivoting Lead Block\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmallest and lightest ball bearing block available\u003c\/li\u003e\n\u003cli\u003ePrecision molded acetal sheave running on stainless steel ball bearings provide high performance  low friction\u003c\/li\u003e\n\u003cli\u003eSingle loop head blocks include an O-ring to separate running line from head lashing or fixing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFeaturing a 4-point fastening for load distribution and low profile. Can be mounted without disassembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDinghy control lines\u003c\/li\u003e\n\u003cli\u003eVangs, cunninghams and tweakers\u003c\/li\u003e\n\u003cli\u003eShock cord tensioning systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMaterials:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBB sheaves: UV stabilized acetal\u003c\/li\u003e\n\u003cli\u003eBall bearings: Stainless steel\u003c\/li\u003e\n\u003cli\u003eCheeks: Grade 316 stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lsl5xp ---\u003e\n\u003cp\u003e\u003cstrong\u003eRonstan Series 15 Ball Bearing Utility Block - Pivoting Lead Block\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eDesigned for compact sailing control systems, the Ronstan RF15174 Series 15 Ball Bearing Utility Block provides smooth, low-friction line handling in a lightweight, low-profile design. This pivoting lead block is suited to dinghy control lines, vangs, cunningham systems, tweakers, and shock cord tensioning systems where dependable routing and efficient operation are important.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight utility block:\u003c\/strong\u003e The Series 15 design is recognized as the smallest and lightest ball bearing block available, making it well suited to space-conscious control-line installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-friction performance:\u003c\/strong\u003e A precision-molded, UV-stabilized acetal sheave runs on stainless steel ball bearings to support smooth line movement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-profile mounting:\u003c\/strong\u003e Four-point fastening helps distribute the load while maintaining a compact installation profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple installation:\u003c\/strong\u003e The block can be mounted without disassembly, helping streamline setup and replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle loop head design:\u003c\/strong\u003e An O-ring separates the running line from the head lashing or fixing for organized line management.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Ronstan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e RF15174\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Series 15 ball bearing utility block with pivoting lead block\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheave material:\u003c\/strong\u003e UV-stabilized acetal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing material:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheek material:\u003c\/strong\u003e Grade 316 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended applications:\u003c\/strong\u003e Dinghy control lines, vangs, cunningham systems, tweakers, and shock cord tensioning systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cp\u003eChoose the Ronstan RF15174 for a compact, smoothly operating line-routing solution built around proven materials and practical installation features.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSEO Meta Description:\u003c\/strong\u003e Ronstan RF15174 Series 15 ball bearing utility block with pivoting lead design, low-friction sheave, and compact mounting for sailing control lines.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eLightweight Series 15 ball bearing utility block designed for compact control-line installations\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePrecision-molded UV-stabilized acetal sheave with stainless steel ball bearings for smooth, low-friction operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFour-point fastening distributes load while maintaining a low-profile design\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMounts without disassembly for streamlined installation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSingle loop head includes an O-ring to separate the running line from the head lashing or fixing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed with UV-stabilized acetal, stainless steel, and Grade 316 stainless steel components\u003c\/li\u003e\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eTruck Freight: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eOversized: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":44881666146393,"sku":"71025","price":53.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/1818\/2489\/files\/71025XL.jpg?v=1789193203","url":"https:\/\/www.marinepartsonly.com\/products\/ronstan-rf15174-series-15-ball-bearing-utility-block-pivoting-lead-block","provider":"Marine Parts Only","version":"1.0","type":"link"}