Ronstan RF20141 Series 20 Single Ball Bearing Block with Stand-Up Loop Top

Series 20 Ball Bearing Block- Single, Stand-Up Loop Top

Features:

• Low friction
• High static and dynamic load capacity
• Lightweight

Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance low friction.

Applications:

• Dinghy control lines
• Dinghy vangs
• Cunninghams
• Traveler controls

Materials:

• Stainless steel ball bearings
• UV stabilized Acetal sheave
• Grade 316 stainless steel load strap and head fitting
• Impact and UV resistant, fiber reinforced Nylon cheeks

Ronstan RF20141 Series 20 Single Ball Bearing Block with Stand-Up Loop Top is a lightweight, low-friction sailboat block designed for dinghy control lines, dinghy vangs, Cunninghams, and traveler controls. Its compact single-sheave configuration helps provide smooth line handling while supporting both static and dynamic loads in a range of small-craft sailing applications.

The precision-molded Acetal sheave operates on stainless steel ball bearings to support high-performance, low-friction movement. This construction is suited to control-line systems where responsive handling and reliable load support are important. The stand-up loop top provides a practical attachment arrangement for appropriate sailing hardware and rigging layouts.

Ronstan builds the Series 20 block with materials selected for marine use, including a UV-stabilized Acetal sheave, Grade 316 stainless steel load strap and head fitting, and impact- and UV-resistant, fiber-reinforced Nylon cheeks. These materials help define the block’s lightweight construction while supporting its intended use on dinghies and other small sailboats. The RF20141 is a focused solution for sailors and riggers looking to replace or configure control-line hardware with a Ronstan Series 20 ball bearing block.

Key Features:

• Feature: Low-friction operation — Precision-molded Acetal sheave and ball-bearing construction support smooth control-line movement.
• Feature: Load capacity — Designed for high static and dynamic load capacity in suitable sailing control applications.
• Feature: Lightweight construction — Helps provide practical hardware for dinghy and small-craft rigging systems.
• Feature: Stand-up loop top — Provides a single-block configuration for compatible attachment and control-line layouts.
• Feature: Marine-oriented materials — Includes stainless steel, UV-stabilized Acetal, and impact- and UV-resistant fiber-reinforced Nylon components.

Product Details:

• Brand: Ronstan
• Model: RF20141
• Product type: Series 20 single ball bearing block
• Top style: Stand-up loop top
• Sheave: Precision-molded UV-stabilized Acetal
• Bearings: Stainless steel ball bearings
• Load strap and head fitting: Grade 316 stainless steel
• Cheeks: Impact- and UV-resistant, fiber-reinforced Nylon
• Applications: Dinghy control lines, dinghy vangs, Cunninghams, and traveler controls

Choose the Ronstan RF20141 Series 20 block for purpose-built, low-friction control-line hardware in dinghy and small-craft sailing applications.

SEO Meta Description: Shop the Ronstan RF20141 Series 20 single ball bearing block with stand-up loop top for low-friction dinghy and small-craft control lines.

Features:

• Low-friction operation — Precision-molded Acetal sheave and ball-bearing construction support smooth control-line movement.

• High static and dynamic load capacity — Designed for suitable dinghy and small-craft sailing control applications.

• Lightweight construction — Practical for dinghy control lines, vangs, Cunninghams, and traveler controls.

• Stand-up loop top — Single-block configuration for compatible sailing hardware and rigging layouts.

• Marine-oriented materials — UV-stabilized Acetal, Grade 316 stainless steel, and fiber-reinforced Nylon components.