Description
Harken 40mm Carbo Ratchet Block w/ Swivel | Boat Supply Store
This Harken 40mm Carbo Single Ratchet Block with Swivel (MPN 2608) effectively manages loaded lines, reducing friction and minimizing fatigue during critical maneuvers. Engineered for demanding applications, it features a 40mm sheave and accommodates lines up to 10mm (3/8 inch) in diameter, with a robust 136 kg (300 lb) working load capacity. The integrated on/off ratchet switch provides immediate flexibility, allowing instant engagement for holding power or disengagement for effortless easing, making it an essential component for efficient sail trim on dinghies and small keelboats.
Key Features
- Lightweight Carbo construction for reduced weight aloft
- Reliable single ratchet mechanism for secure line holding
- Versatile on/off ratchet switch for immediate control adjustment
- Smooth running 40mm Carbo sheave for low friction
- Maneuverable swiveling block for optimal line lead
- High Strength with a 136 kg (300 lb) maximum working load
- Line Capacity up to 10mm (3/8 inch) for broad application
- Durable design engineered for marine environments
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 40mm (1-9/16 inch) |
| Max Line Diameter | 10mm (3/8 inch) |
| Max Working Load | 136 kg (300 lb) |
| Ratchet On/Off Switch | Yes |
| Swivel | Yes |
| Construction | Carbo |
Who This Is For
Sailors requiring precise and effortless control of loaded lines, particularly those operating dinghies, sportboats, or smaller keelboats. Ideal for individuals seeking a lightweight yet powerful block that offers adaptable holding power and smooth line management.
How It Compares
| Feature | Harken 40mm Carbo Ratchet Block w/ Swivel | Competitor |
|---|---|---|
| Sheave Diameter | 40 mm (1-9/16 in) | — |
| Max Line Diameter | 10 mm (3/8 in) | — |
| Max Working Load (kg) | 136 kg | — |
| Ratchet On/Off Switch | Yes | Yes, Yes |
| Swivel | Yes | Yes, Yes |
Common Concerns Answered
Is the ratchet mechanism difficult to engage or disengage?
While some users report the ratchet mechanism can feel stiff when new, this is typical for high-performance blocks designed for secure engagement. With use and proper maintenance, the mechanism should become smoother. The on/off switch provides distinct modes for holding or easing.
What happens if the swivel mechanism becomes stiff?
Occasional reports of the swivel mechanism stiffening over time are often due to a lack of routine maintenance. Periodically rinsing the block with fresh water and applying a marine-grade lubricant will ensure smooth swiveling operation.
Is a ratchet block necessary for my type of sailing?
A ratchet block is highly beneficial for applications involving significant loads or when precise tension adjustments are frequently required, such as on dinghies, small keelboats, or for mainsheet systems. The ability to hold line tension without constant manual effort significantly improves sail trim efficiency and reduces physical strain.
Frequently Asked Questions
What is the maximum line diameter this Harken block can handle?
The Harken 40mm Carbo Single Ratchet Block with Swivel can accommodate a maximum line diameter of 10mm (3/8 inch).
What is the working load limit for the Harken 40mm Carbo Ratchet Block?
The maximum working load limit for this Harken block is 136 kg (300 lb).
Does this Harken block have an on/off switch for the ratchet mechanism?
Yes, the Harken 40mm Carbo Single Ratchet Block (MPN 2608) features an on/off switch for the ratchet mechanism, allowing you to choose between holding power and free-running for easing.
What are the benefits of a Carbo Ratchet block?
Harken Carbo Ratchet blocks offer a combination of lightweight strength, superior grip on loaded lines, and the convenience of an adjustable ratchet function. The Carbo construction minimizes weight, while the ratchet provides secure holding power, reducing load on the crew.
What is the sheave diameter of the Harken 2608 block?
The sheave diameter of the Harken 2608 block is 40mm (1-9/16 inch).
