Ronstan RF15101 Series 15 Ball Bearing Utility Block – Single Block with Loop Head

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

Ronstan RF15101 Series 15 Ball Bearing Utility Block is a compact, lightweight single block designed for dinghy control lines, sailboat adjustment systems, and shock cord tensioning applications. Its loop head configuration provides a practical attachment point, while the precision-molded sheave and stainless steel ball bearings support smooth, low-friction line movement in compact rigging setups.

Built for applications where efficient line handling and minimal weight are important, this Ronstan ball bearing block is suited to vangs, cunninghams, tweakers, and other dinghy control systems. The single loop head includes an O-ring that helps separate the running line from the head lashing or fixing, providing a more organized installation. Its compact Series 15 format is well suited to smaller control lines and space-conscious rigging configurations.

KEY FEATURES:

• Feature: Compact, lightweight design: The Series 15 utility block is Ronstan’s smallest and lightest ball bearing block, making it suitable for weight-conscious control-line systems.
• Feature: Precision-molded acetal sheave: The UV-stabilized acetal sheave is designed to support high-performance, low-friction operation.
• Feature: Stainless steel ball bearings: Ball bearings help the sheave run smoothly for responsive line adjustment.
• Feature: Single loop head with O-ring: The O-ring separates the running line from head lashing or fixing during installation.
• Feature: Versatile rigging applications: Suitable for dinghy control lines, vangs, cunninghams, tweakers, and shock cord tensioning systems.

PRODUCT DETAILS:

• Brand: Ronstan
• Part number: RF15101
• Product type: Series 15 ball bearing utility block
• Configuration: Single block with loop head
• Sheave material: UV-stabilized acetal
• Ball bearing material: Stainless steel
• Cheek material: Grade 316 stainless steel

Choose the Ronstan RF15101 Series 15 Ball Bearing Utility Block for compact, low-friction control-line performance and dependable loop-head installation in dinghy and sailing rigging systems.

SEO META DESCRIPTION: Ronstan RF15101 Series 15 ball bearing utility block with loop head delivers compact, low-friction control for dinghy lines, vangs, and tweakers.

Features:

• Compact, lightweight Series 15 design for weight-conscious dinghy and sailing control-line systems.

• Precision-molded UV-stabilized acetal sheave supports high-performance, low-friction operation.

• Stainless steel ball bearings help the sheave run smoothly for responsive line adjustment.

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

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