Description

The Allen 20mm Double Dynamic Block (A2022) is a compact, lightweight double-sheave marine pulley designed for smooth, low-friction performance in sailing and boat rigging systems.

Part of Allen’s Dynamic range, this block is engineered for applications requiring constant sheave movement and efficient rope handling. Its patented Dynamic Bearing System features twin rows of stainless-steel ball bearings running on a stainless-steel rail, delivering smooth operation, strength and durability.

The block also incorporates Allen’s Ultra-Strap Technology for enhanced strength, durability and rope-friendly performance. An integrated becket provides an additional attachment point, making it particularly useful for cascade and multi-part purchase systems.

Key Features & Benefits

• Double-Sheave Design: Two sheaves provide efficient rope routing and load distribution.
• Dynamic Bearing System: Twin rows of stainless-steel ball bearings run on a stainless-steel rail for smooth, low-friction operation.
• Ultra-Strap Technology: Provides enhanced strength, durability and rope-friendly performance.
• Integrated Becket: Offers an additional attachment point for cascade systems.
• Lightweight Construction: Ideal for applications where reducing weight is important.
• Fast-Rolling Performance: Designed for systems requiring constant sheave movement.
• Compact Design: Suitable for smaller diameter control lines and space-conscious rigging systems.

Technical Specifications

• Brand: Allen
• Product: Double Dynamic Block
• Manufacturer Part Number: A2022
• Sheave Diameter: 20mm
• Overall Length: 48mm
• Width: 20mm
• Height: 12mm
• Weight: 32g
• Maximum Line Diameter: 6mm
• Maximum Working Load: 225kg
• Breaking Load: 600kg
• Configuration: Double sheave
• Bearing Type: Dynamic
• Bearing System: Twin rows of stainless-steel ball bearings running on a stainless-steel rail
• Additional Feature: Integrated becket