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Harken 1540 76mm Midrange Single Block with Swivel

Manufacturer

Harken

<h3>About Harken: Performance Marine Hardware Since 1967</h3><p><strong>Harken</strong> is one of the most recognized names in performance marine hardware, with a legacy stretching back to 1967. <a href="/14853-harken">Harken</a> was founded in a 60-foot trailer by brothers Peter Harken and Olaf Harken, who set out to engineer better sailboat hardware than anything the market had to offer. Their early breakthrough — the plastic recirculating ball bearing block — redefined how sailors managed lines under load and launched a brand that would go on to dominate competitive sailing at the highest levels.</p><p>Headquartered in Pewaukee, Wisconsin, and with a major manufacturing facility in Limido Comasco, Italy, Harken operates as an employee-owned company with distribution spanning 48 countries. From club racing dinghies to grand prix offshore programs, Harken hardware has been aboard winning boats for decades — making its Olympic and America's Cup debuts in 1976 and 1977, respectively.</p><h3>A Full Range of Marine Hardware</h3><p>Harken's product lineup is broad by design. The company works hard to be the technological leader in sailboat blocks, deck hardware, winches, and hydraulics, as well as safety and rescue equipment and services. Their marine catalog includes small boat and big boat blocks, travelers and genoa leads, mainsail and headsail handling systems, winches, hydraulics, mooring solutions, and a robust line of spare parts and accessories.</p><p>At the core of it all are Harken's renowned <a href="/14853-harken-pulleys-blocks-200822">Pulleys &amp; Blocks</a> — the product category that started it all. Whether you're outfitting a high-tech racing dinghy or a bluewater cruising yacht, Harken blocks are engineered for high-load capacity, corrosion resistance, and the smoothest possible operation. The lineup spans sheave sizes from 16 mm all the way to 75 mm, with single, double, triple, fiddle, and soft-attach configurations to cover virtually every application on deck.</p><p>Beyond sailing, Harken also produces a dedicated line of sportfishing <a href="/14853-harken-pulleys-blocks-202394">Pulleys &amp; Blocks</a> engineered for the unique demands of offshore fishing. These compact, high-load pulleys are built for outrigger systems, dredge rigging, and heavy-duty line management — bringing the same patented bearing technology that excels on race courses to the rigors of the fishing cockpit.</p><h3>Why Sailors Trust Harken</h3><p>What sets Harken apart is a relentless commitment to engineering. Each product category is developed with input from top sailors, sailmakers, and boat designers — and the results speak for themselves on race courses worldwide. Harken hardware is a consistent fixture on America's Cup campaigns, Volvo Ocean Race fleets, Olympic classes, and everything in between. For cruisers, that race-proven performance translates into gear that is more reliable, longer-lasting, and more responsive than the alternatives.</p><ul><li>Employee-owned company with decades of marine engineering expertise</li><li>Manufacturing in the USA and Italy, with global distribution in 48 countries</li><li>Patented bearing systems engineered for high loads and minimal friction</li><li>Product lines covering everything from small dinghies to superyachts</li><li>Trusted at the Olympic Games and America's Cup since the 1970s</li></ul>

Part Number

1540
06/24/2036 12:04 AM
Sale Price

$127.11

In Stock (8)

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Product Details

The Harken 1540 is a 76mm (3") Midrange Classic Single Block built for sailors who demand reliable, high-load performance on the water. Designed for medium to large offshore sailboats, this block delivers smooth, fast line handling in demanding conditions.

The sheave runs exclusively on a Delrin® ball bearing system, rolling on flat races with minimal friction for quick, effortless trim and release even under heavy load. UV-stabilized carbon-black Delrin® components in the ball bearings, sheave, and sideplates provide long-term protection against sun degradation. A corrosion-resistant stainless steel sidestrap wraps the block head, reinforcing overall strength and safety.

Key Specifications:

  • Sheave Diameter: 76mm (3")
  • Maximum Line Diameter: 14mm (9/16")
  • Maximum Working Load: 1,270 kg (2,800 lbs)
  • Attachment: Swivel shackle (set screw allows fixed or swivel operation)

Key Features:

  • Ball bearing sheave system for fast trim and release under any load
  • UV-stabilized carbon-black Delrin® bearings, sheave, and sideplates
  • Stainless steel reinforcing sidestrap for added strength and safety
  • Free-running ball bearings on flat races for minimal friction
  • Set screw allows shackle to be fixed or to swivel
  • Compact, robust construction suited for offshore sailing

Ideal for use as a mainsheet block, spinnaker sheet block, mastbase halyard lead, or general control line application on medium to large cruising and offshore racing sailboats. Part of Harken's trusted Midrange Classic block line, the 1540 combines timeless styling with proven marine-grade durability.

Products specifications

Type

Single

Diameter

9/16 Inch or 14 mm

Length

6 1/8 Inches

Mount Type

Swivel Shackle

Ball Bearings

Delrin

Becket

No Becket

Direction

Any

Integral Cleat

No Integral Cleat

Ratchet

Non Ratcheting

Safe Working Load

1800 Pounds

Sheave Diameter

75 mm

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