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Harken, Inc.

Harken 45mm Single Black Magic Aluminum Block with Swivel - 3391

Harken 45mm Single Black Magic Aluminum Block with Swivel - 3391

45mm Swivel Single Roller Bearing Pulley

SKU:H3391

MSRP $235.75 USD
Regular price $187.16 USD
Regular price MSRP:$235.75 USD Sale price $187.16 USD
Sale Available to Order - Contact for Lead Time
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  • Quantities are subject to availability. We will confirm stock before processing your order. If an item is unavailable, we may suggest a substitute or drop ship the product to you. You are welcome to cancel at no charge if substitution/drop shipping does not suit your needs.

Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Ideal for Tackle Shops & Offshore Fishing Pros
The Black Magic Single Pulley has a central Torlon Roller Bearing. The ultimate in reduced friction.There are Delrin Ball Bearing race for side loads. Anodized aluminum side plates and sheave provide durability
Sheave ⌀ : 1-3/4”   (45 mm)
Weight: 2.8 oz   (79 g)
Max Line ⌀ : 3/8”   (10 mm)
Max Working Load: 1653 lbs   (750 kgs)
Breaking Load: 3306 lbs   (1500 kgs)
Shackle Pin ⌀ : 3/16”   (5 mm)
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