Harken self-contained sheaves are designed for sailors to use in custom applications.
Micro, Bullet and Big Bullet sheaves are Delrin® sheaves with Delrin® ball bearings and are scored for rope. 16mm AirBlock® sheave is a Delrin® sheave and features stainless steel ball bearings that ride in a grooved race. Midrange sheave is a Delrin® sheave.
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