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Harken Block - Black Magic 75mm Single - Swivel (3231)

SKU: HAR3231  |  Manuf. Code: 3231
List Price:  $611.85 USD
$485.00 USD

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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.

Usage

Perfect 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

KNOWLEDGE BASE

TECHNICAL INFORMATION

DescriptionImperialMetric
Sheave 2 15/16 in75.0 mm
Length5 1/8 in129.0 mm
Weight11.68 oz331.0 g
Maximum line 9/16 in14.0 mm
Maximum working load5000.0 lb2268.0 kg
Breaking load10000.0 lb4536.0 kg
Shackle pin 5/16 in8.0 mm