Leads external halyards, topping lifts and control line aft from mast base. Block is mounted to bisect halyard load angle for maximum tensile stregnth. Delrin sheaves, for line halyards, contain UV inhibiting additives to protect the sheave from the damaging ultraviolet rays of the sun.
|Ball Bearings||Plain Bearings|
|Diameter||7/16 Inch or 11 mm|
|Integral Cleat||No Integral Cleat|
|Length||2 9/16 Inches|
|Mount Type||Mechanical Fasteners|
|Safe Working Load||1750 Pounds|
|Sheave Diameter||51 mm|
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