DMM Revolver Screwgate Carabiners $34.95 A272 It features the same friction reducing pulley as the wiregate version, but this model will be fully certified as both a carabiner and pulley. This will make it ideal for use in hauling or rescue systems where complete safety and legislative compliance is required.
The Revolver was the reason for I-Beam technology being concieved because this process crucially allows the body to deal with the stresses involved in placing a pulley into a carabiner while remaining light enough for general use.
The 7075 series pulley runs on a dry lube "IGUS" bearing, which is seated on a high tensile stainless sleeve and spindle. This will continue to rotate with loads up to 11Kn before any deformation occurs.In the unlikely event that the pulley does deform - and we have not seen one case yet - the biner still acts as a full strength (24Kn) carabiner.
It has been anodised for protection against the elements, especially coastal and rigouirous mountain enviroments.
Lubrication: The 'IGUS' bearing will run without lubrication; however, like all gates and barrels, a periodic clean and oil will prolong the units life.
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