Harken Block - Black Magic 57mm Double - Swivel
Harken Block - Black Magic 57mm Double - Swivel is backordered and will ship as soon as it is back in stock.
Description
Description
The Black Magic 57mm Double - Swivel #3217 is perfect for those who want reliable performance in their sailing adventures. Known for being lightweight and easy to handle, this double block is a top choice among big boat racers and cruisers. With its unique swivel action, it helps keep your lines from getting tangled, making your sailing smoother and more efficient.
Features & Benefits
- Lightweight design for easy handling
- Swivel feature prevents line twisting
- Torlon® roller bearings for reduced friction
- Ideal for mainsheet, runner, halyard, and spinnaker systems
Crafted with a center cage to keep Torlon® roller bearings separated and parallel, this block minimizes friction for efficient operation. Specifically designed for big boats, it is a perfect match for various sail controls. The block is well-suited for demanding environments, offering durability and reliability when you need it most.
Usage
Best used in scenarios requiring frequent line adjustments, such as racing or cruising. Ideal for controlling mainsheet, runner, halyard, and spinnaker systems efficiently.
Technical Information
Technical Information
Description | Imperial | Metric |
---|---|---|
Sheave | 2 1/4 in. | 57.00 mm. |
Length | 5 1/5 in. | 132.00 mm. |
Weight | 11.85 oz. | 336.00 gr. |
Maximum Line | 1/2 in. | 12.00 mm. |
Maximum Working Load | 3600.00 lb. | 1633.00 kg. |
Breaking Load | 7203.74 lb. | 3267.00 kg. |
Shackle Pin | 1/3 in. | 8.00 mm. |