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Ronstan RF15711 Series 15 Ball Bearing Exit Block

Manufacturer

Ronstan

<h3>Ronstan: Precision Sailing Hardware Built for Every Sailor</h3><p><strong>Ronstan</strong> is one of the most respected names in sailboat hardware — and with good reason. <a href="/11561-ronstan">Ronstan</a> traces its roots back to 1953, when two Australian sailors, Ron Allatt and Stan Lenepveu, founded Ronstan Marine Equipment Pty Ltd in Melbourne, Australia. What started as a passion project supplying handcrafted yacht fittings to their local sailing club gradually grew into a global enterprise recognized for engineering excellence and real-world performance.</p><p>Today, Ronstan is headquartered in Braeside, Victoria, Australia, with international offices in the United States and Denmark, and production facilities across three continents. The brand distributes to more than 40 countries and handles upwards of 4.9 million units out of its Melbourne facility every year. In November 2023, Ronstan joined Groupe Wichard, further cementing its place among the world&apos;s most influential marine hardware groups.</p><h3>Engineering That Performs On the Water</h3><p>What sets Ronstan apart from generic marine suppliers is its deep commitment to innovation and in-house manufacturing capability. Ronstan&apos;s engineering teams — spread across Australia, the United Kingdom, and Denmark — draw on diverse sailing traditions to develop products that meet the demands of wildly different markets: from club dinghy racers to offshore bluewater cruisers. The brand&apos;s catalog spans blocks, winches, travelers, furling systems, batten systems, stainless steel rigging hardware, and a full suite of deck gear. Ronstan is also the official hardware supplier to the Australian Sailing Team.</p><p>The brand&apos;s in-house manufacturing includes precision CNC machining of aluminum, brass, and stainless steel, as well as advanced plastic injection molding using high-performance engineering polymers — including composites reinforced with up to 60% long-strand glass and carbon fiber. This vertical integration means Ronstan controls quality from design to delivery.</p><h3>Core Product Categories</h3><p>Three categories stand out as workhorses of the Ronstan lineup. <a href="/11561-ronstan-fairleads-200387">Ronstan Fairleads</a> are purpose-designed to guide, contain, and correct the lead angle of control lines across a range of deck configurations — a deceptively simple piece of hardware that plays a critical role in clean, friction-free sail handling. For securing lines under load, <a href="/11561-ronstan-cleats-200268">Ronstan Cleats</a> offer a comprehensive range spanning jam cleats, vee cleats, and the brand&apos;s well-known C-Cleat&trade; and T-Cleat&trade; cam cleat families, each engineered for reliable cleating and easy release in all conditions. Completing the rigging equation, <a href="/11561-ronstan-shackles-200937">Ronstan Shackles</a> — including the innovative Triggersnaps&trade; snap shackle range — are individually proof-load tested and designed for intuitive one-handed operation, making them a trusted choice for racers and cruisers alike.</p><h3>From Dinghies to Maxis</h3><p>One of Ronstan&apos;s most distinctive qualities is its breadth. The same brand that equips Olympic-class dinghies also supplies hardware to some of the largest and fastest offshore racing yachts in the world. Whether you&apos;re outfitting a small club boat or a serious offshore campaigner, Ronstan&apos;s catalog has a solution engineered to the right weight, load rating, and finish for the task at hand.</p>

Part Number

RF15711
09/11/2036 8:37 PM
Sale Price

$24.92

In Stock (6)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ronstan RF15711 is a Series 15 ball bearing exit block designed for high-performance marine applications where space and weight are critical. This compact utility block is the smallest and lightest ball bearing block available, making it ideal for dinghies and small sailboats.

Key Features:

  • Precision-molded acetal sheave running on stainless steel ball bearings for exceptionally low friction and smooth operation
  • Formed single-piece housing design provides maximum strength while minimizing rope wear
  • Single loop head design includes an O-ring to separate running line from head lashing or fixing point
  • Flush rivet construction minimizes cutout size and simplifies installation
  • Exit block configuration optimizes line routing at turning points

Common Applications:

  • Dinghy control lines and mainsheet systems
  • Vangs, cunninghams, and tweaker adjustments
  • Shock cord tensioning systems
  • Small boat rigging where weight savings matter

Construction Materials:

  • Sheave: UV-stabilized acetal for long-lasting durability in harsh marine environments
  • Ball bearings: Stainless steel for corrosion resistance and smooth rotation
  • Cheeks: Grade 316 stainless steel for superior strength and corrosion protection

The RF15711 combines Ronstan's precision engineering with marine-grade materials to deliver reliable performance in demanding sailing conditions.

Products specifications

Diameter

3/16 Inch or 5 mm

Ball Bearings

Stainless Steel

Becket

No Becket

Direction

Any

Integral Cleat

No Integral Cleat

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This was the first time I'd shopped at autolicity. The site was easy to use and you guys had the best price by more than 20%. I'll be back the next time I need parts. Keep up the good work

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