Difference between revisions of "Sheave"

Revision as of 10:17, 12 September 2007

A sheave (pronounced "shiv") is a wheel whose outer edge is usually a concave channel which is intended for running a line. It is the part of a block that turns. There are usually sheaves at the top of a mast, through which the halyards are run, although these are not called blocks because there is no frame.