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Craftinsure 2023 LEADERBOARD

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Allen Brothers

Allen Extreme High Load Block

Allen Extreme High Load Block

Single Extreme High Load Block


The XHL range has been designed to deal with extremely high loads without compromising on low load dynamic performance.

This has been achieved by combining the Allen dynamic bearing technology – twin rows of stainless-steel ball bearings running on a stainless-steel axle – with a plain bearing peek washer.

The result is a bearing system which can take extreme static loads without damaging the dynamic performance of the ball bearings.  

Ideal for use in vang cascades or halyard turning points where static loads can be extremely high but low load dynamic performance is required.



  • CNC machined aluminium side cheeks.
  • Precision turned stainless-steel sheave.
  • XHL Bearing Technology.
  • 1250Kg breaking load.