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and Aluminum cheeks and Delrin(tm) ball bearing sheaves (506 series)
This block is stainless steel with UV-protected Delrin™ sheaves
making them a great choice for a multitude of water sports
Commonly used for spinnaker sheets
we suggest the following brands: Samson Amsteel blue
HARKEN 51mm Midrange Self-Contained Sheave, 1533 Shackles/Snaps/Fittings_Shackles and Aluminum cheeks and Delrin(tm)Self contained sheaves are designed for sailors to use in custom applications. Big Boat and high load sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Narrow high load sheaves in mastheads improve sail handling, and speed sail changes, and allow the use of smaller, lighter halyard winches. High load titanium V sheaves feature the same incredibly efficient bearing set of angled titanium rollers as
