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Ronstan  |  SKU: IM-55131
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Ronstan Series 20 Ball Bearing Block - Single [RF20100]

Sale price $23.14 Regular price $27.22


Professional Insight

This product is offered through Inlet Marine Supply as part of our marine electrical catalog. Always verify compatibility with your vessel’s electrical system prior to purchase.

Professional installation is recommended to ensure safety, proper integration, and long-term reliability.

Need help installing this product?

Our service division, Inlet Marine Electric, provides professional marine electrical installation, upgrades, and troubleshooting in South Florida.

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Description

Series 20 Ball Bearing Block - Single

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 & low friction


Applications:
  • Dinghy control lines
  • Dinghy Vangs
  • Cunninghams
  • Traveller controls


Materials:
  • U.V. Stabilized Acetal sheaves
  • Stainless steel ball bearings
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fiber reinforced Nylon cheeks


Specifications:
Sheave Ø: 20mm(3/4")
Max. Rope Ø: 6mm(1/4")
Pin Ø: 3mm(1/8")
M.W.L.: 250kg(550lbs)
B. L.: 550kg(1,210lbs)
Weight: 20g(0.7oz)

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