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Harken, Inc.
Harken 75mm Single Black Magic Aluminum Low-Load Block with Swivel - 3243
Harken 75mm Single Black Magic Aluminum Low-Load Block with Swivel - 3243
75mm Single Swivel Roller Bearing Pulley (Low-Load)
SKU:H3243
MSRP
Regular price
$398.66 USD
Regular price
MSRP:$502.70 USD
Sale price
$398.66 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. The low-load block has a red isolator. It uses Delrin® ball bearings, with a 17-4 PH stainless headpost and 316 stainless steel shackles. 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 Delrin Ball Bearing race for side loads. Anodized aluminum side plates and sheave provide durability.
Sheave ⌀ : 2-15/16”
(75 mm)
Weight: 11.8 oz (335 g)
Max Line ⌀ : 9/16” (14 mm)
Max Working Load: 3000 lbs (1361 kgs)
Breaking Load: 6000 lbs (2722 kgs)
Shackle Pin ⌀ : 5/16” (8 mm)
Weight: 11.8 oz (335 g)
Max Line ⌀ : 9/16” (14 mm)
Max Working Load: 3000 lbs (1361 kgs)
Breaking Load: 6000 lbs (2722 kgs)
Shackle Pin ⌀ : 5/16” (8 mm)
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