Skip to product information
1 of 1

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 $599.85 USD
Regular price $475.16 USD
Regular price MSRP:$599.85 USD Sale price $475.16 USD
Sale Available to Order - Contact for Lead Time
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.

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 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)
View full details