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Ronstan Series 55 BB Orbit Block, Single Becket Swivel

SKU: RONRF55110  |  Manuf. Code: RF55110
List Price:  62.00 USD
$47.10 USD

Description

The Ronstan Series 55 BB Orbit Block, Single Becket Swivel #RF55110 is the ideal choice for sailors seeking lightweight efficiency and strength. Its unique orbital design minimizes unnecessary weight, ensuring high performance even under heavy loads. This product stands out for its innovative ball-bearing system and robust materials, making it a reliable option for a variety of sailing needs.

This block features materials like high compression strength carbon black Acetal ball bearings and carbon fiber reinforced, PTFE impregnated Nylon for durability. The frame and cheeks are made from toughened, glass fiber-reinforced Nylon, while the rope link is UV stabilized Dyneema®. Ideal for mainsheet systems, halyards, vangs, and backstays on boats up to 9m, it offers a 30% weight-saving advantage over competitors. It's perfectly suited for control line applications on larger yachts as well.

Usage

Perfect for mainsheet systems and spinnaker sheets on dinghies, sportsboats, and small keelboats up to 9m (30ft). Also ideal for halyard, vang, and backstay applications on boats up to 8m (26ft), providing reliable performance in a variety of sailing scenarios.

Our Part #RONRF55110 | Mfr. Part #RF55110

Features

  • Lightweight orbital design reduces bulk.
  • Highest working load in its class with a 2-stage bearing system.
  • Dyneema® Link for superior strength-to-weight ratio.
  • Computer-modeled, stress-optimized design.
  • Ultra-light and efficient head arrangement.
  • 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 Load1102.50 lb.500.00 kg.
Breaking Load2205.00 lb.1000.00 kg.
Weight3.10 oz.88.00 gr.