Description
Harken 80mm Mastbase Block | Boat Supply Store
This Harken 80mm Element Block mastbase is engineered for demanding mastbase applications, providing a cost-effective yet highly reliable solution for mainsail halyards and control lines. It efficiently handles lines up to 16mm in diameter with a substantial maximum working load of 2200kg, ensuring secure operation in diverse sailing conditions. Constructed with a forged aluminum and composite sideplate design featuring hardcoat-anodized finishes, this block offers superior strength and corrosion resistance for long-term performance on your vessel.
Key Features
- Robust 80mm sheave diameter for efficient line handling
- Versatile accommodates lines up to 16mm (5/8") diameter
- High-Capacity maximum working load of 2200kg (4850lbs)
- Durable forged aluminum and compound curve sideplates ensure structural integrity
- Corrosion-Resistant hardcoat-anodized sideplates extend service life
- Smooth Operation features a tough composite bearing sheave and journal bearing
- Flexible Rigging integrated swiveling mastbase for optimal line lead
- Value-Driven Harken engineering at an accessible price point
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 80mm |
| Max Line Diameter | 16mm |
| Max Working Load | 2200kg |
| Sideplate Material | Forged Aluminum/Composite |
| Bearing Type | Journal Bearing |
| Swivel Mastbase | Yes |
| Hardcoat-anodized sideplates | Yes |
| Composite bearing sheave | Yes |
Who This Is For
This block is designed for performance-oriented sailors, racers, and cruising yachtsmen who require a durable and cost-effective mastbase block. It is particularly suitable for mainsail halyards or control lines where a swiveling function enhances rigging versatility.
How It Compares
| Feature | Harken 80mm Mastbase Block | Competitor |
|---|---|---|
| Sheave Diameter | 80mm | — |
| Max Line Diameter | 16mm | — |
| Max Working Load | 2200kg | — |
| Sideplate Material | Forged Aluminum | Composite, Aluminum |
| Bearing Type | Journal Bearing | Ball Bearing, Ball Bearing |
Common Concerns Answered
Is the journal bearing friction significant compared to ball bearings?
While ball bearings offer the absolute lowest friction for highly specialized, ultra-low-load applications, the journal bearing in this Harken Element block is engineered for exceptional robustness and efficiency, more than adequate for typical mainsail halyard and control line loads. Its durability and reliability are paramount for long-term use.
What makes the Element series more affordable than previous Harken premium blocks?
The Harken Element series achieves a more accessible price point through innovative design elements, such as its specific sideplate construction and the efficient journal bearing system, without compromising the core Harken commitment to strength and reliable performance.
Is availability ever an issue for Harken blocks?
Due to the high demand and consistent quality of Harken marine hardware, certain popular items can experience temporary stock fluctuations. We recommend checking current availability or pre-ordering to secure your required components.
Frequently Asked Questions
What is the maximum line diameter this Harken block can accommodate?
The Harken 80mm Single Element Block Mastbase is designed to accommodate lines with a maximum diameter of 16mm (5/8 inch).
What is the maximum working load for the Harken 80mm Single Element Block Mastbase?
This Harken block has a maximum working load rating of 2200kg (4850lbs).
What materials are used in the construction of the Harken 80mm Element Block?
The block features a construction of forged aluminum and composite materials for the sideplates, which are hardcoat-anodized for corrosion resistance. The sheave is made of a tough composite material.
Is this block suitable for offshore sailing applications?
Yes, the robust construction, hardcoat-anodized sideplates for corrosion resistance, and a high working load of 2200kg make this block suitable for demanding offshore sailing applications.
What is the sheave diameter of this Harken block?
The sheave diameter of this Harken block is 80mm.
