Description
Harken 60mm Single Block Mastbase w/Swivel | Boat Supply Store
Securely manage lines at your mastbase with this Harken 60mm Single Element Block, engineered for demanding applications. It supports lines up to 14mm and boasts a robust 1100kg (2425lbs) maximum working load, ensuring reliability in harsh marine conditions. Constructed with hardcoat-anodized forged aluminum sideplates and a durable composite sheave, this block offers exceptional corrosion resistance and longevity for cruising sailboats or performance dinghies.
Key Features
- Robust 60mm sheave diameter for efficient line handling
- High Capacity accommodates lines up to 14mm (9/16")
- Heavy Duty maximum working load of 1100kg (2425lbs)
- Durable Construction forged aluminum and compound curve sideplates ensure strength
- Smooth Operation journal bearing minimizes friction under load
- Corrosion Resistant hardcoat-anodized sideplates prevent degradation
- Long Service Life tough composite bearing sheave withstands wear
- Versatile Rigging swiveling mastbase allows for optimal line angle
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 60mm |
| Maximum Line Diameter | 14mm (9/16") |
| Maximum Working Load | 1100kg (2425lbs) |
| Sideplate Material | Forged Aluminum |
| Sheave Material | Composite |
| Bearing Type | Journal Bearing |
Who This Is For
Sailors and boat owners requiring a robust, corrosion-resistant, and high-load capacity single block for mastbase applications. This block is ideal for those seeking a balance of performance and value in their rigging components.
How It Compares
| Feature | Harken 60mm Single Block Mastbase w/Swivel | Ronstan Series 40 Single Block with Swivel Head |
|---|---|---|
| Sheave Diameter | 60mm | — |
| Max Line Diameter | 14mm (9/16") | — |
| Max Working Load | 1100kg (2425lbs) | — |
| Sideplate Material | Forged Aluminum | Composite |
| Sheave Material | Composite | Composite |
| Bearing Type | Journal Bearing | Plain Bearing |
Common Concerns Answered
What if I need an extremely low-friction block for high-speed applications?
While the journal bearing in this Harken block provides smooth operation and excellent durability for most mastbase applications, users requiring ultra-low friction for exceptionally high-speed or critical performance scenarios might consider blocks specifically featuring ball bearings. However, for its intended use, the journal bearing is highly effective and standard for this class.
Is the price of this block a significant investment?
The Harken 60mm Single Element Block Mastbase w/Swivel is priced competitively for the quality and performance it offers, falling within a reasonable range for premium marine hardware. Customers generally find the robust construction and longevity justify the investment for demanding marine environments.
How does the strength of this block compare to others?
This Harken block features a substantial maximum working load of 1100kg (2425lbs), exceeding many comparable blocks in its size class. The forged aluminum sideplates contribute significantly to its impressive strength-to-weight ratio.
Frequently Asked Questions
What is the maximum line diameter this Harken block can accommodate?
This Harken 60mm Single Element Block Mastbase w/Swivel is designed to accommodate lines with a maximum diameter of 14mm (9/16").
What is the working load limit for the Harken 60mm Single Element Block Mastbase?
The maximum working load for this Harken block is 1100kg (2425lbs).
What materials are used in the construction of this Harken block?
The block is constructed with forged aluminum and compound curve sideplates that are hardcoat-anodized for corrosion resistance, and features a tough composite bearing sheave.
Is this block suitable for offshore sailing applications?
Yes, the robust construction with hardcoat-anodized forged aluminum sideplates and a high working load makes this block highly suitable for demanding offshore sailing applications.
What is the sheave diameter of the Harken 6220 block?
The sheave diameter of the Harken 6220 block (SKU CWR86594) is 60mm.
