Ronstan Series 15 Ball Bearing Utility Block - Single Loop Head, Lightweight and High Performance

Series 15 Ball Bearing Utility Block - Single Block, Loop Head

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

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 with a single loop head is designed for optimal performance in a compact, lightweight package. This versatile block features precision-molded acetal sheaves that run smoothly on stainless steel ball bearings, delivering low friction and high efficiency for various sailing and rigging applications. Its small size and minimal weight make it an excellent choice for applications where space and weight savings are critical, such as dinghy control lines, vang systems, and shock cord tensioning setups. The inclusion of an O-ring between the running line and the head prevents chafing and ensures smooth operation under load. Constructed with durable materials, the sheaves are made from UV-stabilized acetal for longevity, while the cheek plates are composed of Grade 316 stainless steel for corrosion resistance in marine environments. The stainless steel ball bearings ensure durability and consistent performance over time, even in harsh conditions. This utility block's compact design and high-quality components make it a reliable choice for both recreational and professional sailing, as well as various tensioning and control systems. Whether used for dinghy control lines, cunninghams, tweakers, or shock cord systems, the Ronstan Series 15 utility block provides smooth operation, durability, and ease of installation, making it a versatile addition to any rigging setup.

Features:

• Smallest and lightest ball bearing block available

• Precision molded acetal sheave with stainless steel ball bearings for low friction

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

• Constructed with UV-stabilized acetal and Grade 316 stainless steel for durability

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