Ronstan Series 30 Ball Bearing Orbit Block - Single Becket with Swivel Shackle Head

Series 30 Ball Bearing Orbit Block - Single - Becket - Swivel Shackle Head

Ball Bearing Orbit Blocks boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options.
Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets.

Features:

• Lightweight
  
• Highest working load in its class
  
• Secure, versatile and secure attachement
  
• Low profile and compact
  
• Ultra low profile thru-sheave becket
  
• Low friction 2-stage ball bearing system provides consistent performance over the full working load range

Applications:

• Mainsheet systems and spinnaker sheets on dinghies to 5M(16')
  
• Halyard, vang and backstay applications on boats to 5M(16')
  
• Control line applications on larger yachts

Materials:

• Sheave: High compression strength carbon black Acetal
  
• Ball Bearings: High compression strength Acetal
  
• Frame/Cheeks: Toughened, glass fiber reinforced Nylon
  
• Link: UV stabilized, multi-strand impregnated SK75 Dyneema

Specifications:
Sheave : 30mm(1-3/16")
Max. Rope : 8mm(5/16")
M.W.L.: 300kg(660lbs)
B. L.: 600kg(1,320lbs)
Weight: 32g(1.1oz)

The Ronstan Series 30 Ball Bearing Orbit Block offers exceptional strength-to-weight performance, making it ideal for various sailing applications. Crafted from high-strength composite reinforced polymers, this block ensures durability while maintaining a lightweight profile. Its innovative design incorporates a low-friction, two-stage ball bearing system that delivers consistent performance across the entire working load range. The ultra-low profile through-sheave becket and compact form make it suitable for tight spaces on small to medium-sized boats. Whether used for mainsheet systems, spinnaker sheets, halyards, vangs, or control lines, this orbit block provides reliable, secure attachment options with versatile swivel shackle heads for easy installation and adjustment.

Features:

• Lightweight construction with high strength-to-weight ratio

• Highest working load capacity in its class

• Secure and versatile attachment options with swivel shackle head

• Low profile and compact design suitable for tight spaces

• Ultra low profile thru-sheave becket for streamlined performance

• 2-stage ball bearing system minimizes friction for smooth operation