Harken Complimentary Hardware
Harken Accessories are designed to make standard blocks more versatile or fill a special need.
Harken Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of Hard Lube-anodized, 6061-T6 aluminum, Harken Big Boat sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection. Select sheaves based on load-carrying capability. Installation requires clamping or securing inner race.
Harken High-load sheaves are offered as replacement parts or for use in special applications. Their bearing system combines sideload-carrying balls with a PTFE composite bushing to carry radial loads. While not as free-rolling as the standard Harken® ball/roller bearing system, this compact bearing system is extremely durable and perfect for carrying high loads in a restricted diameter.
Harken Narrow high-load sheaves in mastheads improve sail handling, speed sail changes, and allow the use of smaller, lighter halyard winches. Used in steering systems, these sheaves return “feel” to wheel-steered boats. Sheaves combine sideload-carrying balls with a PTFE composite bushing for radial loads. These durable sheaves are made of 6061-T6 aluminum and are well-suited for masthead and steering installations.
Harken Self-contained sheaves are designed for sailors to use in custom applications. The Micro, Bullet, and Big Bullet sheaves are Delrin® with Delrin® ball bearings. They are scored for rope. 16 mm AirBlock® sheaves are Delrin® and feature stainless ball bearings that ride in a grooved race. Midrange sheaves come in either Delrin® or aluminum for wire. Wire sheaves are Hard Lube-anodized aluminum that ride on high-load composite bearings. Ball bearings in the 11/2 in (38 mm) and 2 in (51 mm) sheaves minimize friction. The 1 in (25 mm) wire sheave uses low-friction washers for this purpose.
Harken Eyestraps are useful accessories. They form light-duty mounting bases for blocks, serve as lash-down points, and can be used for fairleads. Available in all different sizes.
Harken Folding Padeyes keep your deck and passageways clear. They’re ready when you need to attach a snatch block or fender, but fold safely out of the way when you don’t.
Harken Padeyes are great for mounting blocks and are also used as attachment points for staysails, reefing blocks, and hundreds of other items.
Harken® Spinnaker Pole Cars feature recirculating ball bearings to permit adjustment under load. They roll freely on low-beam traveler track to allow crew to adjust for optimal sail shape. Machined aluminum hardkote-anodized races permit Torlon bearings to transition smoothly from active to return race for smooth trimming or easing.
Harken LOUPS are ready-made soft attachments that replace heavy stainless steel shackles on racing and cruising boats. Weight savings on large offshore boats can be as much as 200 lb (91 kg).
Harken Tiller Extension transmit subtle boat and rudder movements, allowing you to steer by the feel of the helm. The simple and lightweight design has no unnecessary frills—every aspect contributes to its strength, stiffness, or comfort. The universal joint and nonslip foam grip are UV-protected and perfect for full dagger-grip and fingertip steering.
Harken Bolt-Down Fairleads are used as shallow-angle line deflectors on boats 6 to 15 m (20 to 50 ft). These weight-saving fairleads are built of 6061-T6 Hard Lube-anodized aluminum for durability. Smooth surfaces and radiused center holes minimize line wear.