Ronstan Series 15 Ball Bearing Utility Block - Pivoting Lead Block with Stainless Steel Components

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

The Ronstan Series 15 Ball Bearing Utility Block is designed as the smallest and lightest pivoting lead block in its class, offering exceptional performance for a variety of sailing and rigging applications. Constructed with precision-molded acetal sheaves running on stainless steel ball bearings, this block ensures low friction and smooth operation even under demanding conditions. Its compact design features a four-point fastening system for optimal load distribution and a low profile, allowing easy mounting without disassembly. The inclusion of an O-ring in the single loop head blocks helps to keep the running line separate from head lashing or fixing, enhancing reliability and ease of use. Built for durability, the sheaves are made from UV-stabilized acetal, while the cheeks are crafted from Grade 316 stainless steel, providing corrosion resistance in marine environments. The stainless steel ball bearings further contribute to longevity and high performance. This utility block is well-suited for applications such as dinghy control lines, vang, Cunningham, and tweaker systems, as well as shock cord tensioning setups. Its compact size and robust materials make it an ideal choice for sailors and riggers seeking a lightweight yet durable solution for their control systems. Whether installed on small boats or intricate rigging setups, the Ronstan Series 15 utility block delivers reliable performance and ease of installation, all while maintaining a minimal weight footprint.

Features:

• Smallest and lightest ball bearing utility block available for lightweight applications

• Precision molded acetal sheave running on stainless steel ball bearings for high performance and low friction

• Single loop head blocks include an O-ring to separate running line from head lashing or fixing

• Four-point fastening system provides excellent load distribution and a low profile design

• Mountable without disassembly for quick installation

• Durable materials: UV stabilized acetal sheaves, stainless steel ball bearings, and Grade 316 stainless steel cheeks

• Ideal for dinghy control lines, vangs, cunninghams, tweakers, and shock cord tensioning systems