Harken 57mm Airblocks

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57 mm Black Magic® AirBlocks®

harken 57mm airblocks

The entire line of Black Magic® AirBlocks® has been redesigned with a sleek new look. Their unique, performance-packed engineering remains exactly the same.

Used on offshore boats, these strong, lightweight blocks feature Torlon® roller bearings for strength and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion.

Low-load blocks use Torlon® rollers and 316 stainless steel shackles. Standard blocks have 17-4PH stainless headposts.

Like all AirBlocks®, the three-way head swivels/locks in front/side positions. Blocks are easily disassembled with a single hex wrench.

The 3214 soft-attachment Loop block has a removable dead-end post for attachment to a padeye. Lashings can also be used.

Part No.	Description (Click to view & order)	Price
har3226		$
har3229		$
har3228		$
har3219		$
har3215		$
har3216		$
har3217		$
har3218		$
har3227		$
har3214		$

harken 57mm airblock specs

Pyacht.com
Performance Yacht Systems
919 Bay Ridge Road
Annapolis, MD 21403

Toll free: 1-877-379-2248
Local: (410) 267-8681


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