Description

The Harken Carbo Air 40mm Triple Swivel Block with Becket (2641) is a high-performance marine pulley designed to deliver smooth, efficient rope handling in demanding sailing and rigging applications.

Featuring three low-friction ball-bearing sheaves, a versatile swivel attachment and an integrated becket, this block provides excellent flexibility for multi-part purchase systems. Its lightweight, fibre-reinforced composite construction offers an impressive strength-to-weight ratio, making it ideal for highly loaded control lines on performance dinghies and small keelboats.

The swivel head can lock in two directions or rotate freely, allowing the block to align with the direction of the load for efficient line handling.

Key Features & Benefits

• Triple Sheave Design: Three sheaves provide efficient rope routing for multi-part purchase systems.
• Swivel Attachment: Allows the block to rotate or lock in position for flexible rigging arrangements.
• Integrated Becket: Provides an additional rope attachment point for cascading and purchase systems.
• Low-Friction Ball Bearings: Help deliver smooth sheave rotation and easier trimming.
• Fibre-Reinforced Construction: Provides excellent strength while keeping weight to a minimum.
• UV-Stabilised Components: Designed to withstand exposure to sunlight and marine conditions.
• Open Carbo Air Design: Reduces unnecessary weight without compromising performance.

Technical Specifications

• Brand: Harken
• Product: Carbo Air Triple Swivel Block with Becket
• Manufacturer Part Number: 2641
• Sheave Diameter: 40mm (1 9/16 inches)
• Overall Length: 110mm (4 5/16 inches)
• Weight: 122g (4.7oz)
• Maximum Line Diameter: 10mm (3/8 inch)
• Shackle Pin Diameter: 5mm (3/16 inch)
• Maximum Working Load: 660kg (1,455lb)
• Breaking Load: 1,383kg (3,050lb)
• Configuration: Triple sheave, swivel and becket
• Construction: Fibre-reinforced composite
• Bearings: UV-stabilised ball bearings