6 items are in this product group
7/16" (11mm) Line
Harken Hexaratchets® grip loaded sheets with up to 15:1 holding power, yet allow lines to be eased instantly with complete control. A switch can be used to turn the ratchet off in light air. Clockwise and counterclockwise ratchets are paired on spinnaker and jib sheets where ratchets must rotate in opposite directions and on⁄off switches need to face up.• Engage ratchet for up to 15:1 holding power • Ball bearings for free-rolling when ...
19 items are in this product group
3/8" (10mm) Line
Use the 40 mm carbo block for jib and mainsheet systems on high performance dinghies. These blocks are also ideal for highly loaded control lines on small keelboats.• The double and triple swivel blocks can lock in two directions or swivel• Long glass fiber injection molded• Use for main⁄jib sheets and control lines
16 items are in this product group
7/32" (5mm) Line
The 16mm classic block offer very high working loads in an extremely small, lightweight block. They are perfect for the new, smaller synthetic control lines found on high-tech dinghies and are the choice for competitve racers.• These diminutive blocks feature a patented bearing system using stainless balls in a captive, grooved race• Stainless steel sideplates • Use for dinghy control lines, spinnaker pole trip lines, big boat leech lines, ...
1/4" (6mm) Line
Micro Blocks are small, lightweight, free running blocks. Compact self-cleating tackles can be made using the Micro fiddle with smoothly rounded V-Jam to protect line, or the triples with cams. • Shackle pin diameter: 3/16"• Stainless steel sideplates and Delrin ball bearings• Use for cunninghams, outhauls, vangs, traveler controls, barberhaulers, flag halyards, leech cords and lead car return tackles
26 items are in this product group
5/16" (8mm) Line
Use Bullet™ blocks to lead control lines with a minumum of friction. A wide range of variations let these blocks adapt to almost all control line situations.• Wire blocks use roller bearings which will carry a higher load than ball bearings but do not roll as freely• Classic blocks feature stainless steel sideplates and Delrin® ball bearings• Wire blocks feature a Teflon impregnated Hardkote anodized aluminum sheave• ...
Big Bullet™ blocks are ideal for main, jib and spinnaker sheets on small dinghies in addition to control line applications on larger boats.• Their large 1-1/2" sheaves allow the use of 3/8" line and make big bullets exceptionally free rolling blocks• Feature stainless steel sideplates and Delrin ball bearings• Shackle pin diameter: 3/16"• Use for outhauls, vangs, cunninghams, traveler controls, furling lines and ...
9 items are in this product group
Dinghy blocks are lightweight, low-profile blocks designed for use on dinghies and extensively as control lines on larger boats, particularly for traveler controls and cunninghams. • In-head shackle system keeps the length of the dinghy blocks very short• These light duty blocks are not meant for use on heavy course racing keel boats or on scows and catamarans• Sheave dia: 1-3/4"• Stainless steel sideplates and Derlin® ...
10 items are in this product group
7/16" (12mm) Line
2.25" classic blocks are still the most popular block in Harken's line. Used on dinghies, beachcats and iceboats as well as small off-shore racers and cruisers.• Removable beckets to allow attachment of spliced line• Exceptionally free-running blocks• Three-way head on the single block• Use for main and jib sheets, spinnaker halyards and control lines
4 items are in this product group
The 3.00" block offers all the same great features of the 2.25" blocks. In addition, the single block is available in high load and low load configurations. The wire version features Hardkot-anodized, Teflon®-impregnated sheaves for applications such as wire halyards or control lines.• Large diameter sheaves reduce the friction caused by bending line over a small sheave• When using single blocks on keel boats and offshore boats and other ...
15 items are in this product group
Wire blocks are lightweight with low friction designed to carry wire halyards and control lines. The polished stainless steel sideplates are light and strong. They offer superb chafe resistance with wire halyards and controls. • Hardkote®-anodized, Teflon®-impregnated aluminum protects and extends sheave life• Flared stainless steel sideplates prevent line chafe and friction when leads are unfair• Sideplates rotate open to insert ...
Extremely lightweight, Lewmar's 30mm Synchro blocks maintain high performance with less effort. The sheave uses metal replacement technology which, combined with the stainless steel central race and balls, deliver the ultimate efficiency and weight advantage. • Higher efficiency for faster sail handling and less rope wear• Optimized sheave to rope ratio• High load bearing capability• Cheeks use long fiber technology giving ...
12 items are in this product group
3/16" (5mm) to 5/16" (8mm) Line
Stainless steel cheeks and UV stabilized acetal sheaves ensure long service life with virtually no maintenance required.• V-jam blocks allow fast, sure cleating of control lines• Lightweight with durable construction• Blocks with hollow rivet heads accept fixing screws, shackles or can be used as a becket for extra purchase • Max line diameter 5/16" for 1-1/8" diameter sheave• Max line diameter 3/16" for ...
21 items are in this product group
Series 20 blocks are the perfect choice for all types of dinghy control line applications. Their light weight and high load ratings make them ideal for use in powerful, efficient purchase systems for boom vangs, outhauls, cunninghams and traveller controls. • Precision molded 3/4" acetal sheaves for up to 1/4" line• Grade 316 stainless steel ball bearings and 304 stainless steel load straps and head fittings• UV stabilized acetal ...
17 items are in this product group
Series 40 blocks provide low friction, two stage ball bearing system for consistant performance over the full load range. Ideal for mainsheet and halyard applications as well as vang and spinnaker control lines on off-the-beach catamarans, one design classes and sprotsboats up to 26'. • Impact modified, fiber reinforced, and UV stabilized 1-3/16" Zytel® cheeks• High load versions offer self-lubricating Nylatron® sheaves with Trolon® ...
11 items are in this product group
These all purpose blocks are used for mainsheet and halyard applications as well as vang and spinnaker control lines on off-the-beach boats and samll keelboats up to 26'.• Self-lubricating Acetal polymer sheave • High static and dynamic load capacity• Impact modified, fiber reinforced and UV stabilized• 316 stainless steel load straps and head fittings
1/2" (12mm) Line
Typically use Series 50 blocks for main and spinnaker sheets, halyards and other primary functions on boats up to 33'.• Self-lubricating Acetal polymer sheaves ensures low friction and extreme durability• Exceptionally high working loads• Removable becket pins• Captive Lock™ universal head fitting• Sheave diameter: 2" (50mm)
8 items are in this product group
9/16" (14mm) Line
The robust construction of the Midrange series make them a good choice to handle the high loads found on medium and large offshore boats. Perfect for spinnaker sheet blocks on boats to 35 feet. Use them as mastbase halyard lead blocks, mainsheets, spinnaker sheets, and control lines on boats to 39 feet.• Carbon-black Delrin® ball bearings • High-load versions have Torlon® bearings • Aluminum sheave versions accept wire • ...
5 items are in this product group
1/2" (12mm)
Series 60 blocks are designed for primary applications on boats up to 45' including mainsheet, halyard, spinnaker sheet and control line applications.• Acetal sheaves and a solid bearing system provide consistent performance under high loads• Load straps are in 316 stainless steel• Black stainless steel cheeks are flared at rope entry and exit points to minimize chafing• Sheave diameter: 2-3/8"
5/8" (15mm) Line
100mm Black Magic ® Air Blocks® are used on offshore boats where weight and performance are critical. They feature free-rolling, large diameter aluminum sheaves with Torlon® roller bearings housed in a unique center cage. UV-resistant, carbon-black Delrin® balls carry sideloads. Corrosion is minimized by isolating dissimilar metals.• Hardkote-anodized, aluminum sideplates• Thin-profile, deep-groove aluminum sheaves• ...
7 items are in this product group
7/16" (11mm) to 5/8" (15mm)
Footblocks carry some of the highest loads imposed by running rigging. The Torlon rollers on these lightweight, free-running blocks are housed in a center cage, with no contact between bearings. • UV resistant carbon black Delrin balls handle side loads• Recessed mounting fasteners may be either metric or imperial flathead fasteners• use for genoas and spinnakers
1 item is in this product group
Opening footblocks features a spring-loaded back for fast one-hand sheet changes on boats from 20' to 50'. • Housings are hard-anodized aluminum• Large diameter sheaves protect sheets and reduce friction• Can be dismantled while attached to the deck• Sheave diameter: 3-15/16"• Use for spinnaker deflector blocks and genoas
3/8" (10mm) to 9/16" (14mm) Line
Optimized block geometry and a revolutionary free-spin bearing combine to reduce friction and improve efficiency over conventional blocks. The result is performance nearly matching that of a pro racing ball and roller bearing block, but at a fraction of the cost.
3/4" (19mm) Line
Schaefer's foot blocks are computer machined to provide the strength needed in high-stress applications. Low friction, universal circuit sheaves contain a Nomex⁄Teflon® self-lubricating bushing for high strength and easy turning under load, and races of ball bearings for smooth running and the ability to handle variations in sheet lead.• "Strip-from-the-Top" design allows complete disassembly without removal of the deck mounted base plate
5/16" (8mm) to 7/16" (11mm) Line
Unique curved base plate fits up to 2" diameter spar section for easy mounting. Excellent for control line leads on dinghies and small daysailors. All modles have white Delrin sheaves.
7/16" (11mm) to 5/8" (15mm) Line
Flat, stainless base plate distributes load to a larger surface area than other designs which place loads on mounting bolts only. Use on spars and decks to lead sheets, halyards, reefing gear, and any control line requiring a strong, clean lead.• All bases are polished stainless steel• All cheek plates are black anodized aluminum
3/8" (8mm) to 5/8" (15mm) Line
These blocks are designed for the true offshore sailor looking for the ultimate in rugged dependability. Constructed of polished stainless steel cheeks and load straps makes them an excellent choice for installation at the masthead or other hard to service areas. Ball bearing sheaves ensures that the line will run smoothly.
For Custom Applications
Self-contained sheaves are designed for sailors to use in custom applications. • Micro, Bullet and Big Bullet sheaves are made with Delrin ball bearings and scored to provide friction for rope• 16mm AirBlock sheaves are Delrin and feature stainless steel ball bearings that ride in a grooved race• Mid-Range sheaves come in either Delrin or aluminum for wire. • Wire sheaves ride on high load composite bearings and are Hardkote anodized ...
3/8" (10mm) - 7/16" (12mm) Line
These unique load sensing blocks shift seamlessly between ratchet and light air modes with no switches involved. They roll freely in both directions under low loads, but automatically engage the ratchet assist under higher loads. Best of all, the ratchet engagement point is adjustable to suit your muscle power and sailing style.• Perfect for main⁄jib sheets and asymmetric spinnakers• Adjustable ratchet engagement • Free release under ...
Harken's 29mm Carbo Blocks are great for use as a mainsheet on small dinghies such as the Optimist, or for low-friction control blocks on any size boat.• Works well with the new Micro Traveler system• Long glass fiber injection molded• Used for outhauls, traveler controls, barberhauls, flag halyards and cunninghams
7/16" (10mm) Line
The lightweight 57mm Carbo Blocks have a high load capacity and broad working range. Use for main and jib sheets on centerboard and keelboats like Lightnings, Dragons, Solings, J⁄24's and catamaran mainsheets.• 60% stronger and 30% lighter• Long glass fiber injection molded• Attachment applications and uses are limitless• Use for main⁄jib sheets, spinnaker halyards and control lines
3/8" (10mm) to 5/8" (15mm) Line
Designed to be mounted on spars or on deck, this low lead hinged block adjusts to variable halyard and control line angles to provide a proper lead. Narrow base plate allows mounting numerous blocks for multiple halyards or control leads.• BB version - low-friction Delrin® ball bearing sheaves allow for smooth operation under load• UC version features an aluminum universal circuit sheave which combines a low friction Teflon®-impregnated Nomex ...
Acetal Resin
• Features a large flared top and bottom for easy running of control lines• Stainless steel ferrules for leading wire or hard Terylene
Provides a Finished Look for Traveler Installations
• Use 173 & 174 end stops for small dinghies and low load situations• The 263 and 264 heavy duty end stops absorb the shock loads of unintentional jibes and are used on larger dinghies and small keelboats• Use 261 & 262 trim caps to finish track ends when using control block assemblies• #278 is a splice link for low-beam tracks
3 items are in this product group
Excellent for leading your furling line aft along stanchion bases to cockpit. • Contoured base and stainless brackets allow for easy, secure installation• Spring mounted pulpit version articulates to adjust to varying drum angles, for the final lead into furling system
This slider is made of hard black anodized aluminium and runs on low friction nylon inserts. The revolving upper structure (± 50°) is made of AISI 316 stainless steel; double spring keeps it in vertical position. The high resistance resin sheave has a double ball bearing; a wide shape is provided for two sheets.• The stop pin has a lock-up position• There is a becket for remote control line• Suitable for standard T-track
Adjusts Easily Under Full Sheet Loads
Harken adjustable genoa lead cars ride on recirculating Torlon® ball bearings, which adjust easily under full sheet loads. Sheaves feature ball⁄roller bearing with sideloads balls for easy tirmming and fore⁄aft adjustment. • Wide sheaves accommodate two sheets during sail changes• Carriers pivot to either side to accept changing lead angles
For Dinghies and Small Boats
Dinghy jib leads are for dinghies and small sport boats with jibs to 140 ft². The positive spring loaded pinstop is easy to adjust even with cold hands. Track pinstop hole spacing offers precise adjustments.• 450 pinstop lead has a removable bail to attach a spring and block• Use the 451 version when line defection is small• 452 models have a controlled pivot angle so the cleat is always with easy reach• Made for either ...
Harken slider genoa cars run on ball bearing track and the roller⁄ball-bearing sheaves pivot 60° for easy trimming. • Removable stop limits inboard pivoting so lead can mount near cabin side• Sheave carrier pivots to accept unfair leads• 1663 care uses polyslide material to help slide car; car can be towed or used as a pinstop car• 1995 sheave has roller bearings• 1613 and 1639 have axle bearings• ...
