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Allen Brothers  |  SKU: ALNA20401H

Allen Brothers 40mm Dynamic Block with Hook

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Sale price $55.80 Regular price $58.58

Pickup available at 1830 East Interstate 30

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DELIVERY AND RETURN INFO

Allen Brothers 40mm Dynamic Block with Hook

40mm Single Dynamic Swivel Hook Block

The 40mm Single Dynamic Swivel Hook Block is a high-performance pulley designed for keelboats and dinghies. Manufactured from durable, lightweight glass-loaded nylon and featuring Allen's advanced Dynamic Bearing Technology, it delivers smooth, efficient line handling for mainsheets, jib sheets, spinnaker sheets, and control line systems.

The 360° swivel hook head allows for quick attachment and removal, making it ideal for applications where blocks need to be rigged or removed rapidly.

Features

  • Single-sheave design for smooth and efficient line handling
  • Manufactured from durable, lightweight glass-loaded nylon
  • Ideal for mainsheet, jib sheet, spinnaker sheet, and keelboat control line applications
  • Patented Dynamic Bearing System featuring twin rows of stainless-steel ball bearings running on a stainless-steel rail
  • Caged ball bearings for reduced friction and enhanced rolling performance
  • Superior load-carrying capability and long service life
  • 360° Swivelling Hook Head for quick attachment and removal
  • Ideal for lightweight control systems where fast rigging changes are required
  • Large Central Becket Hole for use as a tie-off point in purchase systems
  • Specific becket variations are also available
  • Low-friction, fast-rolling performance for smooth operation under load
  • Designed for reliable performance in demanding marine environments
  • Suitable for applications requiring efficient line management and flexible attachment options

Technical Description

Accessories Swivel, Hook
Bearing Type Dynamic
Configuration Single
Length 109 mm
Maximum Line Diameter 10 mm
Breaking Load 540 kg
Maximum Working Load 250 kg
Height 110 mm
Weight 73 g
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