Harken 40mm Carbo Air Block with Swivel, Lightweight, High-Load Performance

Experience exceptional strength and smooth operation with the Harken 40mm Carbo Air Block with Swivel. Engineered for demanding marine environments, this low-friction block combines a lightweight design with impressive working loads, making it ideal for efficient sail trimming. Its UV-stabilized components ensure long-term durability, providing reliable performance season after season. Upgrade your rigging for easier control and enhanced sailing efficiency today.

Key Features:

• Low-Friction Carbo Air Design: Utilizes free-running ball bearings on curved races to efficiently disperse loads, ensuring smooth and rapid line adjustments.
• Optimal Sheave Diameter: A 40mm (1-9/16in) sheave diameter is perfectly sized for diverse marine control applications.
• Ultra-Lightweight Construction: Weighing only 44g (1.6oz), this block is 30% lighter than traditional Classic blocks, reducing overall rigging weight without compromising strength.
• High Maximum Working Load: Supports up to 220kg (485lb), providing a 60% higher working load compared to Classic blocks for secure, heavy-duty trimming.
• Exceptional Breaking Load: Features a breaking load of 735kg (1620lb) for superior safety and reliability under extreme stress.
• Patented Swivel Shackle: The patented switch allows the shackle to lock in front or side positions, or swivel freely to prevent line twisting.
• Durable & UV-Stabilized: Ball bearings, sheave, and side plates are made from glass-filled nylon, reinforced with densely packed glass fibers and UV-stabilized with carbon black for maximum protection against sun and saltwater.

Specifications:

• Length: 86mm (3-3/8in)
• Shackle Pin Diameter: 4mm (5/32in)
• Maximum Line Diameter: 10mm (3/8in)

Versatile Applications:

• Main/Jib Sheets
• Mainsheet Fine-Tune
• Control Lines
• Vangs & Cunninghams
• Outhauls