Harken Block - Black Magic 75mm Single - Swivel
DESCRIPTION
DESCRIPTION
The Black Magic 75mm Single - Swivel #3231 is a go-to for big boat racers and cruisers who demand performance. These blocks are fantastic for keeping your sail controls smooth and easy, whether you're dealing with mainsheets, runners, or spinnaker systems. With a center cage that reduces friction, it’s built for smooth sailing.
Benefits
- Lightweight design for easy handling
- Free-running performance for efficient sail control
- Swivel feature to prevent line twisting
- Durable Torlon® roller bearings
Crafted with Torlon® roller bearings, this block is designed to handle high loads with minimal friction. The center cage keeps bearings separated and parallel, enhancing performance. Ideal for sailboats, it fits seamlessly into mainsheet, runner, halyard, and spinnaker systems, ensuring reliable operation.
UsagePerfect for competitive racing and long-distance cruising where gear efficiency and reliability are crucial. This block excels in high-action scenarios, delivering dependable performance every time.
Our Part # HAR3231 | Mfr. Part # 3231
FEATURES
FEATURES
- 75mm composite sheave.
- Single block with swivel head.
- High-strength, low-friction design.
- Optimized for smooth line handling.
- Durable construction for marine environments.
TECHNICAL INFORMATION
TECHNICAL INFORMATION
| Description | Imperial | Metric |
|---|---|---|
| Sheave | 2 15/16 in | 75.0 mm |
| Length | 5 1/8 in | 129.0 mm |
| Weight | 11.68 oz | 331.0 g |
| Maximum line | 9/16 in | 14.0 mm |
| Maximum working load | 5000.0 lb | 2268.0 kg |
| Breaking load | 10000.0 lb | 4536.0 kg |
| Shackle pin | 5/16 in | 8.0 mm |