Masthead sheave upgrade

Maintaining, repairing, upgrading, commissioning, decommissioning topics.

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Masthead sheave upgrade

Post by Mvallus » Sat Feb 10, 2018 6:20 pm

Has anyone upgraded their masthead sheaves from the original delrin (I think) sheave? I ordered the aluminum version from RigRite, but they are much heavier and I really do not want 10X more the weight aloft. This was the closest I could find via Harken: ... &taxid=396

Original: FM2C Masthead Sheave w/ 12mm ID - Aluminum: NG2-3AB12 ... 5_mast.php

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Re: Masthead sheave upgrade

Post by j30_rhapsody » Sat Feb 10, 2018 7:29 pm

I replaced mine with black delrin last year. Make sure to use stopper balls on the halyards to prevent shackles from damaging the sheaves.

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