Product Description

High-load sheaves are offered as replacement parts or for use in special applications. Their bearing system combines sideload-carrying balls with a Teflon® composite bushing to carry radial loads. While not as free-rolling as the standard Harken® ball/roller bearing system, this compact bearing system is extremely durable and perfect for carrying high loads in a restricted diameter.

Installation requires clamping or securing inner race.

Use for:
Masts, Booms, Deck organizers and Through-the-transom running backstays.

Part Number: 712

Imperial Metric
Sheave Dia. 4" 102 mm
Width 7/8" 22 mm
Weight 10 oz 284 gr
Center Pin Dia. 11/16" 17.60 mm
Max Line Dia. 1/2" 12 mm
Max Wire Dia. 5/16" 8 mm
Maximum Working Load 12000 lbs 5443 kg
Breaking Load * 32000 lbs 14515 kg

* Based on use of solid 304 stainless shafts.
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Harken 4 in. High-Load Sheave
Original Price: $ 340.20
Price: $ 299.38

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