{"product_id":"ronstan-series-25-ball-bearing-orbit-block-lashing-rf28109","title":"Series 25 Ball Bearing Block","description":"\u003cp\u003eThe Series 25 Ball Bearing Orbit Block is a 1in (25mm) single-sheave ball bearing block with becket and lashing head designed to give you high strength and low weight for dinghy and small-boat control lines. Its primary benefit is reduced friction under load thanks to a two-stage ball bearing system built for control-line tasks.\u003c\/p\u003e\n\u003cp\u003eProblem: high friction and heavy hardware slow sail handling on small boats. Solution: this block uses a high-compression acetal sheave and ball set with a stainless steel hollow hub to lower friction and permit efficient becket take-off or secure lashing attachments up to 4mm.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-stage ball bearing system reduces friction for smoother sheet handling\u003c\/li\u003e\n\u003cli\u003eSheave 1in (25mm) suits lines up to 8mm (5\/16)\u003c\/li\u003e\n\u003cli\u003eHollow stainless steel hub accepts becket and up to 4mm (5\/32) lashing\u003c\/li\u003e\n\u003cli\u003eBreaking load 1650 lb and weight 0.5 oz for high strength-to-weight ratio\u003c\/li\u003e\n\u003cli\u003eFrame of glass-fiber-reinforced nylon for durability in marine conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse cases include mainsheet and spinnaker sheet turning blocks, cunninghams, cascading vangs and leech control on dinghies to 4m (13ft). Compared to plain nylon plain-bearing blocks, this ball-bearing orbit block lowers start-up friction and maintains performance under repeated loading.\u003c\/p\u003e\n\u003cp\u003eMaterials and authority: acetal sheave and balls, toughened glass-fiber-reinforced nylon cheeks, and a stainless steel hub. Manufactured by Ronstan MPN RF28109 and specified with a 1650 lb breaking load. Choose this block when you need measurable friction reduction and a compact lashing-ready attachment. Learn more today.\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":52208601760043,"sku":"110654","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/8320\/1579\/files\/110654XL.jpg?v=1777573964","url":"https:\/\/anchorexpress.com\/products\/ronstan-series-25-ball-bearing-orbit-block-lashing-rf28109","provider":"Anchor Express","version":"1.0","type":"link"}