Harken 64mm Extra Wide Sheave

Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of hardcoat-anodized, PTFE-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. Delrin is a registered trademark of E. I. du Pont de Nemours and Company or its affiliates. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Technical Description

Sheave Ø (mm)	64 mm
Sheave Ø (in)	2 1/2 in
Width (mm)	35 mm
Width (in)	1 3/8 in
Weight (g)	198 g
Weight (oz)	7 oz
Maximum line Ø (mm)	12 mm
Maximum line Ø (in)	1/2 in
Fasteners (mm)	8 mm
Fasteners (in)	5/16 in
Center pin Ø (mm)	8.1 mm
Center pin Ø (in)	5/16 in
Maximum working load (kg)	1361 kg
Maximum working load (lb)	3000 lb
Breaking load (kg)	2721 kg
Breaking load (lb)	6000 lb

Complementary Hardware

Harken Flush Mounted White Hand Hold

Harken 38mm Eyestrap - Double Fastener

Harken 5mm Stainless Stamped Shackle

Harken 5mm Snap Shackle for 3/8 (standard) Posts

Harken 6mm Snap Shackle for 15/32 (heavy duty) Posts

Harken 64mm Extra Wide Sheave

Harken Torlon Ball Bearings for Midrange Cars (bag of 25)

Harken 51mm Aluminum Midrange Self Contained Sheave

Harken 51mm Midrange Self Contained Sheave (Delrin)

Harken 6mm Stamped Shackle

Harken Delrin Ball Bearings for Midrange Cars (bag of 25)

Harken 8mm Midrange Snap Shackle