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Harken 2136 57mm Carbo Ratchet Block with Swivel and Becket

Manufacturer

Harken

<h3>About Harken: Performance Marine Hardware Since 1967</h3><p>Harken, Inc. is an international manufacturer specializing in performance sailing hardware, headquartered in Pewaukee, Wisconsin. The company was founded in 1967 by brothers Peter Harken and Olaf Harken. What began as a scrappy operation in a 60-foot trailer has grown into one of the most recognized names in marine hardware worldwide.</p><p>Starting with the invention of the plastic recirculating ball bearing block and the development of Olympic sailboats, Harken is now the brand of choice for most leading sailing teams, designers, and builders. Harken hardware has been a dominant force in the racing segment for many years, making its Olympic and America's Cup debuts in 1976 and 1977, respectively.</p><p>Harken works hard to be the technological leader in sailboat blocks, deck hardware, winches, and hydraulics, as well as safety and rescue equipment and services. The company is employee-owned and has factories in Pewaukee, WI, USA and Limido Comasco, Italy, with distribution in 48 countries and group offices in 9 countries.</p><h3>Harken Winches &amp; Winch Handles</h3><p>At the heart of any serious sailboat's control system is the winch, and Harken's reputation here is second to none. Harken winches — including self-tailing and electric options — are known for their power, durability, and smooth operation. Harken's innovative Radial Line winches deliver a perfect balance of power, grip, and control, designed for smooth line handling under load. Their compact design and durable build make them ideal for both new installations and upgrades to existing systems. Browse our full selection of <a href="/14853-harken-winches-winch-handles-201186">Harken Winches &amp; Winch Handles</a> to find the right fit for your boat.</p><h3>Harken Cleats</h3><p>Line management is critical on any vessel, and Harken's cleats are legendary among sailors for their engineering precision. Multiple rows of high-load ball bearings and a precise V-shape reduce friction, allowing Harken cam cleats to activate with the snap of a wrist. No need for draw-through cleating: a downward flick snaps the sheet into the cam and stays exactly where you put it — flick up and the cleat releases instantly, even under high loads. Harken cleats are the only cleats that engage under maximum line tension. Explore our range of <a href="/14853-harken-cleats-200268">Harken Cleats</a> for options suited to racers and cruisers alike.</p><h3>Harken Blocks</h3><p>A company that started with only making ball bearing blocks turned into a well-known brand of blocks, travelers, deck hardware, winches, and more. Today, Harken's block lineup spans everything from lightweight dinghy hardware to mega-yacht systems. Harken blocks are famous for their ball-bearing technology, which ensures sheaves spin freely even under extreme tension. Harken sailboat components, including blocks, are designed for use aboard any boat from dinghies to mega-yachts. Discover the full range of Harken Blocks for every point of sail and every size of boat.</p><h3>Harken Non-Skid Tape &amp; Pads</h3><p>Safety aboard starts with secure footing, and Harken addresses this with their Marine Grip non-skid solutions. The cost-effective, non-skid grip tape is easy to install and clean, remains in place without peeling, sheds water and grime, and won't burn feet. Testing proves Marine Grip performs at least 40% more effectively than competitive products or wax. Shop Harken Non-Skid Tape &amp; Pads to keep your crew sure-footed in all conditions.</p><h3>Why Sailors Trust Harken</h3><p>Harken is an industry leader and routinely dominates major sailing events worldwide, including the America's Cup, the Volvo Ocean Race, and the Olympics. Harken Marine products are high strength with minimal weight and size, making them a great choice for high-load management systems. From weekend cruisers to professional racing teams, Harken's commitment to low friction and maximum strength has made it the go-to hardware brand for sailors around the globe.</p>

Part Number

2136
09/12/2036 11:19 AM
Sale Price

$84.67

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Harken 2136 57mm Carbo Ratchet Block with Becket is a high-performance sailing block designed to allow sailors to hand-hold loaded lines while maintaining an ideal balance between holding power and controlled easing. Featuring a swivel base and integrated becket, this block is well-suited for mainsheet systems, jib sheets, spinnaker sheets, traveler controls, and foreguys on dinghies and keelboats alike.

Key Features:

  • On/Off Switchable Ratchet: Provides precise control with accessible, easy-to-operate switches on both sides of the block — switch the ratchet on when you need holding power, off when you want a free-running line
  • Up to 10:1 Additional Holding Power: The 57mm ratchet sheave with eight facets grips the line securely under load, dramatically reducing hand fatigue
  • Glass-Fiber Reinforced Nylon Sideplates: Densely packed long-glass fibers replace traditional stainless steel reinforcing straps, delivering a compact block with an outstanding strength-to-weight ratio
  • Hardkote Anodized Machined Aluminum Sheave: Provides superior strength and long-term corrosion resistance in harsh marine environments
  • UV-Stabilized Components: Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection against sun degradation
  • Free-Rolling Ball Bearings: Ensure smooth, efficient line movement when the ratchet is disengaged
  • Swivel Base with Becket: Allows multi-directional lead angles and provides an attachment point for additional purchase systems

Specifications:

  • Sheave Diameter: 2-1/4 in (57 mm)
  • Block Length: 4-15/16 in (125 mm)
  • Weight with Shackle: 3.3 oz (94 g)
  • Maximum Line Diameter: 3/8 in (10 mm)
  • Shackle Pin Diameter: 3/16 in (5 mm)
  • Maximum Working Load: 500 lb (227 kg)
  • Breaking Load: 2,000 lb (907 kg)

For the ultimate mainsheet system, pair this switchable ratchet block in the cockpit with a boom-mounted Harken Ratchamatic® directly above — delivering double holding power in heavy air and a free-running mainsheet in light conditions. Manufacturer Part Number: 2136.

Products specifications

Type

Single

Diameter

3/8 Inch or 10 mm

Length

4 15/16 Inches

Mount Type

Swivel Shackle

Weight

0.21

Ball Bearings

Plastic

Becket

Becket

Direction

Any

Integral Cleat

No Integral Cleat

Ratchet

Ratcheting

Safe Working Load

500 Pounds

Sheave Diameter

57 mm

Tank arrived on time and undamaged.

Your system showed delivery three days before it was delivered. Caused of concern.

Tires were as advertised, quick delivery overall great experience

Painless order at a couple hundred dollars less than other online suppliers.

WAS VERY EASY TO PLACE AN ORDER, WILL WAIT FOR DELIVERY!

It was delivered when it said it was supposed to haven't opened it yet but look forward to seeing it

WE have not done the install yet. We will let you know if we have any issues. Thank you

Great service and shipping!

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