100mm Black Magic® Block, Single Loop Block

Model # 14136204 Mfg # 3245
3.6 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
100mm Black Magic® Block, Single Loop Block
Model # 14136204 Mfg # 3245
3.6 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
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Harken 100mm Black Magic® single loop Block with a removable dead-end post for attachment to a padeye.

The entire line of Black Magic® AirBlocks® offer a sleek and polished look. Their unique performance engineering 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.

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
  • Soft-attachment Loop block has a removable deadend post for attachment to a padeye
  • Sheaves have radiused edges to protect today’s high-tech line
  • Sheave Diameter: 3 15/16" (100 mm)
  • Max. Line Diameter: 5/8" (16 mm)
  • Max. Working Load (MWL): 7500 lb. (3402 kg) 
  • Breaking Load: 15000 lb. (6804 kg)  
  • Weight: 13.09 oz. (371 g)
  • Length: 5 1/16" (128 mm)

Ball Bearings Torlon
Becket No Becket
Diameter 5/8 Inch or 16 mm
Direction Any
Integral Cleat No Integral Cleat
Length 5 1/16 Inches
Mount Type Fixed Lashing Eye
Ratchet Non Ratcheting
Safe Working Load 7500 Pounds
Type Single
Weight 13.06 Ounces
Sheave Diameter 100 mm

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