75mm Black Magic® Footblock, Double Footblock with Lockoff

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SKU: 3237 Categories: ,
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Harken 75mm Double Footblock allows clean deck organization and 180° line angles. 

The entire line of Black Magic® AirBlocks® offer unique performance engineering which remains the staple of the Black Magic® line of blocks. These strong, lightweight blocks feature free-rolling, high-load Torlon® roller bearings for a high strength-to-weight ratio. Used for dynamic high-load sail controls including mainsheets, runners, halyards and spinnaker systems. Harken created the Black Magic® line of blocks for the high performance sailor in mind.

Air blocks are easy to clean and service. They have few parts and no loose balls or rollers to misplace. Unlike blocks that are riveted, fasteners allow quick disassembly with a single hex wrench.

Key Features

  • Lightweight blocks with high-load Torlon® roller bearings for a high strength-to-weight ratio
  • Ideal for sail controls including mainsheet, runner, halyard, and spinnaker systems
  • Center cage keeps Torlon® roller bearings separated and parallel to reduce friction
  • Sheaves have radius edges to protect today’s high-tech line
  • Footblocks with lockoffs temporarily secure sheets
  • Use to handle heavy loads associated with genoa and spinnaker sheets
  • Sheave Diameter: 2 15/16″ (75 mm)
  • Max. Line Diameter: 9/16″ (14 mm)
  • Max. Working Load (MWL): 3465 lb. (1572 kg) 
  • Breaking Load: 6930 lb. (3143 kg)  
  • Weight: 20.24 oz. (574 g)
  • Length: 4 3/8″ (111 mm)

Additional information

Sailboat Blocks

Foot Blocks

Ball Bearings Torlon
Becket No Becket
Diameter 9/16 Inch or 14 mm
Direction Any
Integral Cleat Integral Lockoff
Length 4 3/8 Inches
Mount Type Mechanical Fasteners
Ratchet Non Ratcheting
Safe Working Load 3465 Pounds
Type Double Cheek/Foot
Weight 20.7 Ounces
Sheave Diameter 75 mm
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