Ronstan Series 20 Triple Ball Bearing Block with Becket and 2-Axis Shackle Head

Series 20 Ball Bearing Block - Triple - Becket - 2-Axis Shackle Head

Features:

• Low friction
  
• High static and dynamic load capacity
  
• Lightweight
  
• Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance or 90

Applications:

• Dinghy control lines
  
• Dinghy vangs
  
• Cunninghams
  
• Traveller controls

Materials:

• Stainless steel ball bearings
  
• UV Stabilized Acetal sheave
  
• Grade 316 stainless steel load strap and head fitting
  
• Impact and UV resistant, fiber reinforced Nylon cheeks

Specifications:
Sheave : 20mm(3/4")
Max. Rope : 6mm(1/4")
Pin: 4mm(5/32")
M.W.L.: 400kg(880lbs)
B. L.: 850kg(1,870lbs)
Weight: 64g(2.3oz)

The Ronstan Series 20 Triple Ball Bearing Block with Becket and 2-Axis Shackle Head offers high-performance sailing and rigging solutions with durable construction and smooth operation. Featuring precision molded Acetal sheaves running on stainless steel or Torlon ball bearings, this block provides low friction and high efficiency under demanding conditions. Its lightweight design makes it ideal for various marine applications, including dinghy control lines, vang systems, cunninghams, and traveler controls, ensuring reliable performance without adding unnecessary weight. The robust materials, such as Grade 316 stainless steel for the load strap and head fitting, UV-stabilized Acetal sheaves, and impact-resistant fiber-reinforced Nylon cheeks, contribute to its longevity and resistance to harsh marine environments. Designed to handle a maximum rope diameter of 1/4 inch, it has a working load limit of 880 pounds and a breaking load of 1,870 pounds, making it suitable for both recreational and competitive sailing. Weighing only 2.3 ounces, this component combines strength and lightness, ensuring ease of handling and installation. The compact size and high load capacity make it a versatile choice for sailors seeking reliable and low-maintenance hardware. Whether upgrading existing rigging or outfitting a new boat, the Ronstan Series 20 Ball Bearing Block enhances control and safety while maintaining smooth operation over time. Built with quality materials and precision engineering, this triple sheave block is an essential part of any rigging setup requiring dependable performance and durability.

Features:

• Low friction design with high-performance ball bearings

• High static and dynamic load capacity for demanding applications

• Lightweight construction for ease of handling and performance

• Precision molded Acetal sheaves with stainless steel or Torlon ball bearings

• Robust materials including Grade 316 stainless steel and impact-resistant nylon cheeks

• Suitable for rope sizes up to 1/4 inch (6 mm)

• Maximum working load of 880 lbs and breaking load of 1,870 lbs

• Compact and lightweight for versatile marine use