20MM DYNAMIC BLOCK, CHEEK BLOCK

The Allen A2026M 20mm Dynamic Composite Cheek Block is a lightweight, high-performance 20 mm dynamic bearing cheek block designed for applications requiring smooth, continuous sheave movement. Part of Allen’s renowned Dynamic Block range, the A2026M delivers exceptionally low friction and fast rolling performance, making it ideal for dinghies, skiffs, catamarans, and other performance sailing craft using smaller diameter control lines.

Designed to be mounted directly to a flat surface, the composite cheek block provides a simple, low-profile solution for leading control lines along decks, into cleats, or around corners. Allen’s patented Dynamic Bearing System utilizes twin rows of stainless-steel ball bearings running on stainless-steel races, providing superior load-carrying capacity, smoother operation, and significantly longer service life than conventional plastic bearing systems.

Technical Specifications

• Model: Allen A2026M
• Product Type: Dynamic composite cheek block
• Sheave Diameter: 20 mm
• Maximum Line Diameter: 6 mm
• Bearing Type: Dynamic stainless-steel ball bearing
• Number of Sheaves: Single
• Mounting Style: Composite cheek block
• Installation: Two-bolt deck mount
• Safe Working Load (SWL): 115 kg
• Breaking Load: 540 kg
• Construction: Glass fibre reinforced composite cheeks with stainless-steel bearing races
• Corrosion Resistance: Marine-grade materials throughout

Features

• Designed for deck, mast, or bulkhead mounting
• Compact, low-profile cheek block design
• Allen Dynamic Bearing System with twin stainless-steel ball bearing races
• Stainless-steel bearing races provide superior durability over plastic race designs
• Smooth, low-friction operation for continuously moving control lines
• Lightweight glass fibre reinforced composite construction
• Excellent strength-to-weight ratio
• Corrosion-resistant marine-grade materials

Typical Applications

• Leading control lines along decks
• Cunningham systems
• Outhaul controls
• Vang / kicker systems
• Reefing systems
• Mast and boom control lines
• Traveller controls
• General dinghy and keelboat rigging