Description
Ronstan Series 15 Ball Bearing Utility Block – Pivoting Lead Block – Marine Boat Replacement Part is organized for gaskets, seals & o-rings shoppers who need a clear, professional marine parts buying experience.
Series 15 Ball Bearing Utility Block – Pivoting Lead Block Features: Smallest and lightest ball bearing block available Precision molded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O-ring to separate running line from head lashing or fixing Featuring a 4-point fastening for load distribution and low profile. Can be mounted without disassembly. Applications: Dinghy control lines Vangs, cunninghams and tweakers Shock cord tensioning systems Materials: BB sheaves: UV stabilized acetal Ball bearings: Stainless steel Cheeks: Grade 316 stainless steel
Fitment & Product Details
- Brand / Manufacturer: Ronstan, Sem
- Material: stainless steel
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- Built for boat owners, e-commerce shoppers, and professional marine service teams.






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