Harken 57mm Triple Block (HK3219)

Harken 57mm Triple Block

Harken
SKU:
HK3219
|
UPC:
97653264613
$1,263.56
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Description

Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.

Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Part  no. 3219: 57mm Aluminum Triple Block - Swivel

Specifications

  • Sheave Ø (mm) 57 mm
  • Sheave Ø (in) 2 1/4 in
  • Length (mm) 132 mm
  • Length (in) 5 3/16 in
  • Weight (g) 378 g
  • Weight (oz) 13.34 oz
  • Shackle pin Ø (mm) 8 mm
  • Shackle pin Ø (in) 5/16 in
  • Maximum line Ø (mm) 12 mm
  • Maximum line Ø (in) 7/16 in
  • Maximum working load (kg) 2200 kg
  • Maximum working load (lb) 4850 lb
  • Breaking load (kg) 4400 kg
  • Breaking load (lb) 9700 lb

 

Resources/References