Harken 4.5 in. Sheave

Harken 4.5 in. Sheave

Product Details

Product Description

Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of Hardkote-anodized, Teflon® impregnated 6061-T6 aluminum, sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection. Select sheaves based on load-carrying capability.

Installation requires clamping or securing inner race.

Use for:
Mainsheets, Spinnaker sheets, Afterguy/foreguy and Footblocks.

Part Number: 518

Imperial Metric
Sheave Dia. 4 1/2" 114 mm
Width 1" 25 mm
Weight 16 oz 454 gr
Center Pin Dia. 3/4" 19.10 mm
Fasteners 3/8" 10 mm
Fastener Circle 1 3/8" 35 mm
Max Line Dia. 3/4" 18 mm
Maximum Working Load 7500 lbs 3401 kg
Breaking Load 15000 lbs 6803 kg