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Allen Brothers  |  SKU: ALNA20401S

Allen Brothers 40mm Dynamic Single With Ultra-Strap

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Sale price $43.20 Regular price $45.33

Pickup available at 1830 East Interstate 30

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DELIVERY AND RETURN INFO

Allen Brothers 40mm Dynamic Single With Ultra-Strap

40mm Single Dynamic Ultra-Strap Block

The 40mm Single Dynamic Ultra-Strap 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 Ultra-Strap attachment provides exceptional strength and durability while remaining rope-friendly, making it an excellent choice for dinghy jib and mainsheet systems.

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
  • Ultra-Strap Technology provides exceptional strength, durability, and rope-friendly performance
  • Coined Ultra-Strap construction improves reliability and wear resistance compared to conventional strap designs
  • Ideal for dinghy jib and mainsheet systems
  • 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 efficient control line management
  • Designed for reliable performance in demanding marine environments

Technical Description

Accessories Strap
Bearing type Dynamic
Configuration Single
Breaking Load 700 kg
Height 65 mm
Length 64.5 mm
Maximum Line Diameter 10 mm
Maximum Working Load 240 kg
Weight 41 g
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