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

The Ronstan Series 20 Ball Bearing Block with stand-up loop top delivers high-performance, low-friction line control for dinghies and small sailboats. This single-sheave block features precision-molded Acetal sheaves running on stainless steel ball bearings, providing exceptional efficiency and durability in demanding marine environments.

Key Features:

• Low-friction ball bearing design for smooth line operation
• High static and dynamic load capacity despite lightweight construction
• Stand-up loop top attachment for versatile rigging options
• Precision-molded UV-stabilized Acetal sheave
• Stainless steel ball bearings for long-lasting performance

Construction Materials:

• Grade 316 stainless steel load strap and head fitting for corrosion resistance
• Impact and UV-resistant fiber-reinforced Nylon cheeks
• UV-stabilized Acetal sheave for durability
• Stainless steel ball bearings

Ideal Applications:

• Dinghy control lines and mainsheet systems
• Dinghy vangs and cunninghams
• Traveler controls
• Small sailboat running rigging

Ronstan's Series 20 blocks are engineered for sailors who demand reliable performance and smooth operation in compact, lightweight packages.