Description
Harken 40mm Carbo Air Fiddle Block Swivel Becket | Boat Supply Store
Engineered for demanding control line applications, this Harken block addresses the need for high strength with minimal weight. Its Carbo Air construction ensures exceptionally low friction for smooth operation under load, critical for precise sail trim. With a 40mm sheave diameter and a robust 220kg maximum working load, it efficiently manages lines up to 10mm, proving indispensable for efficient halyard and control system management on vessels from dinghies to larger keelboats.
Key Features
- Lightweight Carbo Air construction minimizes weight aloft.
- High Strength engineered for reliable performance under load.
- Low Friction sheave ensures smooth operation and efficient trimming.
- Integrated Swivel provides versatile rigging angles and prevents line twisting.
- Becket Included for easy creation of tackle systems and load multiplication.
- Compact 40mm Sheave suitable for a variety of control lines.
- High Working Load of 220kg supports demanding trim adjustments.
- Durable Design built to withstand harsh marine environments.
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 40mm |
| Length | 131mm |
| Weight | 54g |
| Shackle Pin Diameter | 4mm |
| Maximum Line Diameter | 10mm |
| Maximum Working Load | 220kg |
| Breaking Load | 735kg |
| Material | Carbo Air |
Who This Is For
Dinghy sailors and keelboat racers seeking an exceptionally lightweight and strong block for optimizing control lines such as vangs and mainsheets. Cruisers will also appreciate its reliable performance and ease of use for various running rigging applications.
How It Compares
| Feature | Harken 40mm Carbo Air Fiddle Block Swivel Becket | Competitor |
|---|---|---|
| Sheave Diameter | 40mm | — |
| Weight | 54g | Approx. 70g, Approx. 65g |
| Maximum Working Load | 220kg | — |
| Maximum Line Diameter | 10mm | — |
| Material | Carbo Air | Composite/Aluminium, Composite |
Common Concerns Answered
What if I need a higher working load for extremely heavy-duty applications?
While this 40mm block offers a robust 220kg working load, which is substantial for its size, extremely heavy-duty applications might necessitate larger diameter blocks or tackle systems. Consult the Harken catalog for blocks with higher load ratings if your specific rigging demands it.
I've heard swivels can get stiff. What's the maintenance?
To ensure the longevity and smooth operation of the swivel mechanism, regular rinsing with fresh water and occasional lubrication with a marine-grade lubricant is recommended, especially after prolonged exposure to saltwater. This prevents stiffness and corrosion.
Are lightweight blocks durable enough for constant use?
Harken's Carbo Air construction is specifically engineered for exceptional durability and impact resistance, balancing low weight with high-performance reliability. Customer sentiment consistently praises its robust nature despite its light weight.
Frequently Asked Questions
What is the maximum line diameter this Harken block can accommodate?
This Harken 40mm Carbo Air Fiddle Block is designed to safely accommodate lines with a maximum diameter of 10mm.
What is the working load limit for the Harken 40mm Carbo Air Fiddle Block?
The maximum working load for the Harken 40mm Carbo Air Fiddle Block with swivel and becket is rated at 220kg.
What are the typical applications for a 40mm fiddle block with a swivel and becket?
These blocks are typically used for control lines such as mainsheets, vangs, outhauls, and cunninghams, particularly on dinghies, sportboats, and smaller keelboats where weight and efficiency are critical.
How does the Carbo Air material compare to traditional block materials in terms of weight and strength?
Carbo Air offers a superior strength-to-weight ratio compared to traditional materials like bronze or aluminum sheaves, resulting in significantly lighter blocks that maintain high load capacities and abrasion resistance.
Is this block suitable for dinghy vangs and mainsheets?
Yes, the Harken 40mm Carbo Air Fiddle Block with swivel and becket is an excellent choice for dinghy vangs and mainsheets due to its lightweight design, low friction, and sufficient working load for these applications.
