Ronstan RF15174 Series 15 Ball Bearing Utility Block – Pivoting Lead Block

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

Ronstan Series 15 Ball Bearing Utility Block - Pivoting Lead Block

Designed for compact sailing control systems, the Ronstan RF15174 Series 15 Ball Bearing Utility Block provides smooth, low-friction line handling in a lightweight, low-profile design. This pivoting lead block is suited to dinghy control lines, vangs, cunningham systems, tweakers, and shock cord tensioning systems where dependable routing and efficient operation are important.

Key Features:

• Lightweight utility block: The Series 15 design is recognized as the smallest and lightest ball bearing block available, making it well suited to space-conscious control-line installations.
• Low-friction performance: A precision-molded, UV-stabilized acetal sheave runs on stainless steel ball bearings to support smooth line movement.
• Low-profile mounting: Four-point fastening helps distribute the load while maintaining a compact installation profile.
• Simple installation: The block can be mounted without disassembly, helping streamline setup and replacement.
• Single loop head design: An O-ring separates the running line from the head lashing or fixing for organized line management.

Product Details:

• Brand: Ronstan
• Part number: RF15174
• Product type: Series 15 ball bearing utility block with pivoting lead block
• Sheave material: UV-stabilized acetal
• Bearing material: Stainless steel
• Cheek material: Grade 316 stainless steel
• Recommended applications: Dinghy control lines, vangs, cunningham systems, tweakers, and shock cord tensioning systems

Choose the Ronstan RF15174 for a compact, smoothly operating line-routing solution built around proven materials and practical installation features.

SEO Meta Description: Ronstan RF15174 Series 15 ball bearing utility block with pivoting lead design, low-friction sheave, and compact mounting for sailing control lines.

Features:

• Lightweight Series 15 ball bearing utility block designed for compact control-line installations

• Precision-molded UV-stabilized acetal sheave with stainless steel ball bearings for smooth, low-friction operation

• Four-point fastening distributes load while maintaining a low-profile design

• Mounts without disassembly for streamlined installation

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

• Constructed with UV-stabilized acetal, stainless steel, and Grade 316 stainless steel components