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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
Regular price
$207.95 USD
Regular price
MSRP:$235.75 USD
Sale price
$207.95 USD
Unit price
/
per
Shipping calculated at checkout.
- 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.
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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.
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)
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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