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Premium Marine Quality Parts

Ronstan

Ronstan Series 20 Ball Bearing Block - Swivel Hook Head

SKU 55138 MPN RF20180 UPC 9316800416622 MFR Ronstan

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Toronto, ON Vancouver, BC NJ, Warehouse FL, Warehouse

On Back Order

This item is currently on backorder. You can still place an order, but it will only ship once it’s back in stock.

$37.35
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Series 20 Ball Bearing Block - Swivel Hook Head

Features:
  • Low friction
  • High static and dynamic load capacity
  • Lightweight
  • Low profile swivelling hook for quick and easy attachment
  • Hook suits rope, stainless steel and webbing fixing points
  • 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:
  • 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 Ø: 20mm(3/4")
Max. Rope Ø: 6mm(1/4")
M.W.L.: 135kg(300lbs)
B. L.: 270kg(590lbs)
Weight: 21g(0.7oz)

Product Specifications

Dimensions4" L × 2" W × 1" H
Shipping Weight0.05 lb
Country of OriginID
Harmonized Code8483.50.90.40
Northern Marine Canada
Proudly Canadian Owned & Operated!
Serving customers across Canada & the USA with marine parts and accessories.
Canadian Head Office:
Kingston, Ontario, Canada
Warehouse Locations:
Toronto, Ontario, Canada
New Jersey, USA
Florida, USA

About Us

Northern Marine is a Canadian supplier of premium marine and RV parts and accessories from top industry brands. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.