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Ronstan Series 55 BB Orbit Block, Triple Becket Swivel

SKU: RONRF55310  |  Manuf. Code: RF55310
$149.81 $127.34 USD

Description

The Ronstan Series 55 BB Orbit Block, Triple Becket Swivel #RF55310 is your go-to choice for lightweight and high-performance sailing. It's designed with an innovative orbital ball-bearing system that ensures maximum load capacity, making it perfect for competitive sailors. This triple block setup is crafted for optimal efficiency without unnecessary bulk.

Features & Benefits

  • World's lightest triple block configuration.
  • High compression acetal ball bearings for reduced friction.
  • Fibre-reinforced load frame for durability.
  • 30% weight saving compared to competitors.
  • Dyneema® link ensures strength and lightness.

Constructed with toughened, glass fibre reinforced Nylon, the block's sheaves are made from carbon fibre reinforced PTFE impregnated Nylon. The robust head fitting is made of Grade 316 stainless steel, ensuring longevity even in challenging conditions. With its high-performance materials, this block is ideal for mainsheet systems on dinghies, sportsboats, and small keelboats up to 9m (30ft), as well as various control line applications on larger yachts.

Usage

Perfect for mainsheet and spinnaker sheet systems, as well as halyard, vang, and backstay applications on boats up to 8m (26ft). This versatile block is also excellent for control line applications on larger yachts, providing reliable performance across a range of sailing scenarios.

Features

Features:

  • Ultra Light Weight.
  • Low friction 2-stage Orbital ball bearing system.
  • Highest working load in its class.
  • Low profile and compact.
  • High performance cleating.
  • Swivel shackle head for unlimited block rotation.
  • Stainless steel shackle head and compatibility with sharp fixing points.
  • Ultra low profile integrated becket.

Technical Information


DescriptionImperialMetric
Sheave Ø2 1/6 in.55.00 mm.
Maximum Rope 2/5 in.10.00 mm.
Pin Ø1/5 in.5.00 mm.
Maximum Working Load1653.75 lb.750.00 kg.
Breaking Load3307.50 lb.1500.00 kg.
Weight8.61 oz.244.00 gr.