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Harken, Inc.
Harken 75mm Singel Black Magic Aluminum Block with Swivel - 3231
Harken 75mm Singel Black Magic Aluminum Block with Swivel - 3231
75mm Swivel Single Roller Bearing Pulley (High-Load)
SKU:H3231
MSRP
Regular price
$527.95 USD
Regular price
MSRP:$599.85 USD
Sale price
$527.95 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 as well as a Torlon Ball Bearing race for side loads. Anodized aluminum side plates and sheave provide durability. High load capacity
Sheave ⌀ : 2-15/16”
(75 mm)
Weight: 11.7 oz (331 g)
Max Line ⌀ : 9/16” (14 mm)
Max Working Load: 5000 lbs (2268 kgs)
Breaking Load: 10000 lbs (4536 kgs)
Shackle Pin ⌀ : 5/16” (8 mm)
Weight: 11.7 oz (331 g)
Max Line ⌀ : 9/16” (14 mm)
Max Working Load: 5000 lbs (2268 kgs)
Breaking Load: 10000 lbs (4536 kgs)
Shackle Pin ⌀ : 5/16” (8 mm)
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