Description
Harken 57mm Single Carbo Ratchet Block | Boat Supply Store
Manage loaded running rigging with controlled authority using the Harken 57mm Single Carbo Ratchet Cheek Block. This block offers significant holding power and precise easing capabilities, allowing tactile control over lines up to 10mm (3/8 inch) in diameter. Its robust Carbo construction ensures longevity under demanding conditions, supporting a maximum working load of 227 kg (500 lb), making it ideal for offshore cruising or competitive racing.
Key Features
- Secure Ratchet mechanism for reliable line holding
- Controlled Easing for precise adjustments
- Durable Lightweight Carbo block construction
- Versatile Accommodates lines up to 10mm (3/8")
- High Capacity 500 lb (227 kg) working load
- Efficient 57mm sheave diameter for smooth operation
- Ergonomic Cheek block design for easy handling
- Performance-Driven Engineered for demanding sail trim
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 57mm |
| Sheave Diameter (inches) | 2-1/4 inch |
| Maximum Line Diameter | 10mm |
| Maximum Line Diameter (inches) | 3/8 inch |
| Maximum Working Load | 227 kg |
| Maximum Working Load (lb) | 500 lb |
| Block Type | Cheek Block |
| Ratchet Mechanism | Yes |
| Single/Double | Single |
Who This Is For
Performance-oriented sailors, racers, and cruisers requiring precise control over loaded halyards and control lines. Ideal for those who need both secure holding power and the ability to ease lines smoothly by hand.
How It Compares
| Feature | Harken 57mm Single Carbo Ratchet Block | Competitor |
|---|---|---|
| Sheave Diameter | 57 mm | — |
| Maximum Line Diameter | 10 mm | — |
| Maximum Working Load (lb) | 500 lb | 330 lb, 440 lb |
| Ratchet Mechanism | Yes | Yes, Yes |
Common Concerns Answered
How does the ratchet mechanism on this Harken block perform under very light loads?
While generally praised for its holding power, some users report that the ratchet may not engage as smoothly on extremely light loads. This is typical for many ratchet mechanisms, which are optimized for significant line tension.
Can the ratchet on this block feel stiff initially?
Yes, some initial stiffness in the ratchet mechanism is noted by a few users. This typically resolves with use as the block breaks in, and it ensures robust engagement once tension is applied.
Is the Harken 57mm Single Carbo Ratchet Cheek Block expensive?
The price reflects its advanced Carbo construction and effective ratchet system, offering superior holding power and controlled easing compared to basic non-ratchet blocks. This advanced functionality justifies the investment for performance-critical applications.
Frequently Asked Questions
What is the maximum line diameter this Harken block can handle?
This Harken block is designed to handle lines with a maximum diameter of 10mm (3/8 inch).
What is the working load limit for the Harken 57mm Single Carbo Ratchet Cheek Block?
The maximum working load limit for this block is 227 kg, which is equivalent to 500 lb.
How does the ratchet mechanism on this block work?
The ratchet mechanism engages pawls that grip the sheave when load is applied, preventing the line from slipping. When easing, the mechanism disengages to allow controlled release.
What are the benefits of using a ratchet block compared to a standard block?
Ratchet blocks offer significant holding power, reducing the load on the crew for loaded lines, and allow for controlled easing. Standard blocks do not provide this self-holding capability.
Is this block suitable for offshore sailing or racing applications?
Yes, its robust Carbo construction, high working load, and reliable ratchet mechanism make it highly suitable for demanding offshore sailing and competitive racing environments where precise line control is essential.
