Description
Description
The Harken Block - Black Magic 45mm Single #3391 is a favorite among big boat racers and cruisers for its lightweight design and smooth performance. It's a reliable choice for demanding sail controls such as mainsheet, runner, halyard, and spinnaker systems. Built with precision, it ensures seamless sailing without unnecessary bulk.
Benefits
- Lightweight and efficient design
- Low friction with Torlon roller bearings
- Soft-attachment Loop block with removable deadend post
- Compatible with lashings and padeye attachments
This lightweight block features a center cage that keeps the Torlon roller bearings aligned, reducing friction and enhancing performance. The sheave center carries the primary load, allowing for a smaller and lighter block. Additionally, it includes a soft-attachment Loop block that can be easily connected to a padeye, while lashings offer versatile attachment options.
Usage
Ideal for mainsheet, runner, halyard, and spinnaker systems, making it perfect for performance racing and cruising scenarios.
Technical Information
Technical Information
Description | Imperial | Metric |
---|---|---|
Sheave Ø | 1 3/4 in | 45.0 mm |
Lenght Ø | 3 15/16 in | 10.0 cm |
Weight | 2.79 oz | 79.0 g |
Shackle pin | 3/16 in | 5.0 mm |
Maximum line Ø | 3/8 in | 10.0 mm |
Maximum working load | 1653.0 lb | 750.0 kg |
Breaking load | 3306.0 lb | 1500.0 kg |