Description
Ronstan Series 20 Ball Bearing Block – Upright Lead – Marine Boat Replacement Part is organized for anchoring, docking & mooring shoppers who need a clear, professional marine parts buying experience.
Series 20 Ball Bearing Block – Upright Lead Features: Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction Applications: Typically used for halyards at the mast base Materials: U.V. Stabilized Acetal sheaves Stainless steel ball bearings & Load housing Specifications: Sheave Ø: 20mm(3/4″) Max. Rope Ø: 6mm(1/4″) Fastener Ø: 4mm(5/32″) M.W.L.: 250kg(550lbs) B. L.: 550kg(1,210lbs) Weight: 18g(0.6oz)
Fitment & Product Details
- Brand / Manufacturer: Ronstan
- Material: stainless steel
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- Built for boat owners, e-commerce shoppers, and professional marine service teams.






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