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Allen 50 mm Quad Dynamic Block with Becket

SKU: ALL-A2057  |  Manuf. Code: A2057
$202.00 USD

Description

50mm Quad Dynamic Block With Becket.

The A2057 is a high performing ball bearing block, designed to eliminate friction and allow rope to run at great speeds.

Ideal for use on Keelboats and Catamarans for a range of applications from jib sheet to mainsheet systems, to backstay tensioning systems and everything in between. The 50mm quad is a great choice for systems which require a larger purchase system with minimal friction.

Our Part # ALL-A2057 | Mfr. Part # A2057

Features

  • Bearings: Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems available on the market.
  • Swivel Lock: The A2056 comes with a removable swivel lock moulding. When installed, the shackle can be locked in 90-degree orientations. When removed, the attachment shackle can spin freely.
  • Becket:Â A large central hole not only reduces the overall weight of the block but also offers a rope friendly attachment, perfect as a tie-off point when being used in a cascade system.

Technical Information

DescriptionImperialMetric
Breaking load1764.0 lbs.950.0 kg
Length5 1/3 in136.0 mm
Maximum line diameter3/8 in10.0 mm
Maximum working load1036.35 lbs.470.0 kg
Weight9.66 oz274.0 g
Shackle pin3/16 in5.0 mm