Description
Harken 45mm Double Block w/Swivel & Becket | Boat Supply Store
Engineered for demanding sail control applications, this Harken block provides superior load handling and durability in harsh marine environments. It reliably manages lines up to 12mm in diameter with a maximum working load of 875kg, making it ideal for mainsheets, vang systems, or cascading reefing on coastal cruisers or offshore racers. The robust construction features forged aluminum sideplates and a hardcoat-anodized finish for exceptional corrosion resistance, ensuring longevity even in saltwater conditions.
Key Features
- Forged aluminum sideplates for superior strength and rigidity.
- Journal bearing engineered for smooth, efficient operation under load.
- Hardcoat-anodized finish provides exceptional corrosion and abrasion resistance.
- Composite bearing sheave ensures long service life and reduced friction.
- Integrated swivel offers versatile rigging angles and prevents line twist.
- Becket facilitates attachment of additional lines or hardware for multi-purchase systems.
- Optimized design delivers Harken quality at an accessible price point.
- High working load of 875kg accommodates substantial forces on control lines.
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 45mm |
| Length | 127mm |
| Weight | 195g |
| Shackle Pin Diameter | 6mm |
| Maximum Line Diameter | 12mm |
| Maximum Working Load (WLL) | 875kg |
| Breaking Load | 1750kg |
| Sideplate Material | Forged Aluminum / Compound Curve |
| Bearing Type | Journal Bearing |
| Sheave Material | Composite Bearing |
Who This Is For
Sailors and boaters requiring a dependable, corrosion-resistant, and cost-effective block for critical sail control. Ideal for mainsheets, vang systems, and control lines where swivel and becket functionality are beneficial.
How It Compares
| Feature | Harken 45mm Double Block w/Swivel & Becket | Competitor |
|---|---|---|
| Sheave Diameter | 45mm | — |
| Maximum Working Load | 875kg | — |
| Maximum Line Diameter | 12mm | — |
| Sideplate Material | Forged Aluminum | Nylon, Composite |
| Bearing Type | Journal Bearing | Plain Bearing, Plain Bearing |
Common Concerns Answered
Is the journal bearing as effective as a ball bearing for all sailing applications?
The robust journal bearing in this Harken block is designed for optimal performance in its intended applications, providing smooth operation and excellent durability. While ball bearings excel in extremely high-speed or very low-load scenarios, the journal bearing offers a highly reliable and cost-effective solution for typical mainsheet, vang, and control line use.
How does the 'Element' series compare in durability to Harken's premium block lines?
The Element series is constructed with a focus on optimized material usage and robust engineering, delivering Harken's signature quality and durability. While premium lines may incorporate advanced bearing technologies or lighter alloys, this block's forged aluminum sideplates and hardcoat-anodized finish ensure it stands up to demanding use, offering exceptional long-term value.
Some users note the swivel isn't as free-moving as more expensive blocks. Is this a functional concern?
The integrated swivel is designed for reliable functionality and strength, ensuring proper line lead in various configurations. While ultra-high-end blocks might feature a more articulated swivel, the design in this Element series provides secure and effective articulation essential for the block's intended sailing applications.
Frequently Asked Questions
What is the maximum line diameter this block can accommodate?
This Harken 45mm Double Element Block can accommodate a maximum line diameter of 12mm.
What is the working load limit for the Harken 45mm Double Element Block?
The maximum working load limit for this block is 875kg.
What materials are used in the construction of this block?
The block features forged aluminum and compound curve sideplates, a journal bearing, hardcoat-anodized finish, and a composite bearing sheave.
Is this block suitable for saltwater environments?
Yes, the hardcoat-anodized finish on the forged aluminum sideplates provides excellent corrosion resistance, making this block highly suitable for saltwater environments.
What is the purpose of the becket on this block?
The becket is a loop or eye integrated into the block's structure, designed for attaching additional lines, shackles, or hardware. This allows for creating multi-purchase systems, such as cascading vang systems or multi-part mainsheets, to increase mechanical advantage.
