Sailboat blocks

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single block
single block
2190

Working load: 115 kg
Breaking load: 340 kg
Weight: 23 g

... and stop each other. The result is the most efficient small boat block Harken has ever made. Zircon blocks are available in 40- and 57-mm sheaves in single and double blocks, with or without beckets.

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Harken
single block
single block
RBB series

Seldén has expanded their range of Roller Bearing Blocks with larger singles and single/stand-ups in series ø100 and a ø130 mm. “- Boatbuilders call for these blocks and we are pleased to provide the ...

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Seldén Mast AB
single block
single block
402-001-01

Working load: 70 kg
Breaking load: 140 kg
Weight: 7 g

SINGLE STRAP 402-001-01 Purchase: 2 Mounting: 90

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Seldén Mast AB
single block
single block
401-001-01

Working load: 70 kg
Breaking load: 140 kg

SINGLE COMPOSITE 401-001-01 Purchase: 2 Comment:

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Seldén Mast AB
single block
single block
KB6

Working load: 220 kg
Breaking load: 440 kg
Thickness: 17 mm

Grey KB6 round lashing block The KB is Karver’s iconic round block. It is one of the first products that we have designed and it is a concentrate of our DNA : Performance, Innovation and Design. It is ...

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Karver Systems
single block
single block
KB8

Working load: 600 kg
Breaking load: 1,200 kg
Thickness: 23 mm

KB6 round lashing block The KB is Karver’s iconic round block. It is one of the first products that we have designed and it is a concentrate of our DNA : Performance, Innovation and Design. It is timeless, ...

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Karver Systems
single block
single block
KB10

Working load: 1,000 kg
Breaking load: 2,000 kg
Thickness: 22 mm

Grey KB8 round lashing block The KB is Karver’s iconic round block. It is one of the first products that we have designed and it is a concentrate of our DNA : Performance, Innovation and Design. It is ...

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Karver Systems
single block
single block
RF25109

Working load: 250 kg
Breaking load: 550 kg
Weight: 9 g

... incredible Series 20 Orbit Block™ is capable of loads up to 250kg (550lb) while weighing a mere 9 grams. It’s so light that it needs to be lashed down! Series 20 BB Orbit Block™ Lashing Head User Instructions N.B. ...

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Ronstan
single block
single block
BRS/50

Working load: 160 kg

This jammer block is for situations where a fixed foot block cant help: peeling spinnakers, or changing a sheet winch Controlled spinnaker handling Attached with webbing strop, positioned on a toe ...

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Spinlock
single block
single block
HTX series

Working load: 800, 1,100, 2,000, 3,500 kg

... Lewmar HTX Hardware Range. Drawing upon the design of the Racing Range, the HTX blocks are constructed simply from high quality materials, providing enhanced reliability. HTX blocks are ideal for frequently ...

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Lewmar
single block
single block
Racing

Working load: 800 kg - 15,000 kg

Lewmar's Racing Blocks represent the pinnacle of our standard block range. Manufactured from the best materials, they offer incredible strength to weight ratios. Features Lockable head pin Highly ...

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Lewmar
single block
single block
Synchro

Working load: 2,000, 450, 1,100, 800 kg

... swivel locking mechanism Applications Plain bearing blocks are typically used for heavy and static loads in: Halyard tuning Mainsheet systems Mast foot blocks Mast head blocks ...

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Lewmar
single block
single block
HT2020

Working load: 125 kg
Breaking load: 750 kg
Weight: 11 g

... filled nylon with 316 stainless Steel straps Axle: - 316 stainless Steel Line size:2.5 - 6mm USAGER Control Lines Lead Blocks Vang Cascades Cunningham Systems Halyard Leads

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Holt
triple block
triple block
60313

Working load: 480 kg
Breaking load: 900 kg
Thickness: 42 mm

... removed for maintenance Applications For dinghies and catamarans applications: genoa sheets, boom vang, footmast block, masthead block… For larger yachts: barber-hauler, cunnigham, various, control ...

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Wichard
single block
single block
LL1060

Working load: 1,000 kg
Center diameter: 60 mm
Weight: 95 g

<p>Looper series, single block, sheave Ø 60, SWL 1000 kg</p> Looper is an ultralight one-piece-frame block provided with a dyneema Snap-Loop for fast, easy and safe connections. Characteristics: ...

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Antal
single block
single block
3565340100

Working load: 360 kg
Breaking load: 900 kg
Weight: 102 g

... removable becket Versatile 10 mm block with swivel and becket. The sturdy stainless steel tab shows the type of bearing used and the maximum rope thickness at a glance - a practical feature of all articles in the ...

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SPRENGER
single block
single block
3567029000

Working load: 300 kg
Breaking load: 600 kg
Weight: 120 g

optimized rope guidance by specially formed cheek parts and trap of stainless steel for more security and stability wobble riveting avoids sharp burrs on the rivet head marking of the maximum rope Ø in the enhancing strap cheek of ...

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SPRENGER
single block
single block
3565045155

Working load: 360 kg
Weight: 98 g

... removable becket Versatile 10 mm block with u-shaped swivel. The sturdy stainless steel tab shows the type of bearing used and the maximum rope thickness at a glance - a practical feature of all articles in the ...

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SPRENGER
double block
double block
A2032A

Working load: 280 kg
Breaking load: 1,250 kg

Articulating Double Block. This block is very similar to the standard double (A2032) except the central rivet and spacing mouldings have been removed. The blocks can now articulate freely ...

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Allen Brothers
single block
single block
A2030PLZ / A2036P

Breaking load: 500 kg

... performance. This block looks very similar to the 30mm dynamic version. To differentiate we have changed the sheave colour to grey. Plain Bearing Cheek Block The A2036P is a plain bearing version ...

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Allen Brothers
single block
single block
A1375

Working load: 200 kg
Breaking load: 700 kg

Allen Snatch Blocks feature the same Dynamic bearing technology as our 30 and 40mm Dynamic ranges. Our snatch blocks have an easy to use mechanism for opening and closing the cheeks making them the perfect ...

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Allen Brothers
single block
single block
B300301B

Working load: 450 kg
Breaking load: 850, 3,600, 1,250 kg
Weight: 50 g

Single block with spherical plain bearing and composite sides and sheave

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Rutgerson
single block
single block
B300501B

Working load: 700 kg
Breaking load: 1,250 kg
Weight: 115 g

Single block with spherical plain bearing and composite sides and sheave

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Rutgerson
single block
single block
B300601B

Working load: 1,150 kg
Breaking load: 2,100 kg
Weight: 205 g

Single block with spherical plain bearing and composite sides and sheave

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Rutgerson
single block
single block
EX1327

Plain bearing block with nylon cheeks and acetal sheaves with EX1372 snap shackle. Lightweight, very strong and affordable. This mainsheet block is designed for Optimists and other small dinghies and ...

single block
single block
P-Tech & C-Tech hooks

Working load: 200 kg - 1,500 kg
Breaking load: 3,000, 2,500, 2,000, 800, 400 kg
Center diameter: 14, 10, 8, 6 mm

... etc) + DATA SHEET - Nodus Factory opening friction ring made of Self-lubricating technical plastic resin ¬ black - Block®, clamping and holding ring, made of technical PA, which can lock and quickly fix a textile ...

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NODUS FACTORY
double block
double block
Sleek®

Working load: 300 kg
Breaking load: 600 kg
Center diameter: 6 mm

The Sleek® low-friction P-Tech® carbon pulley, Nodus Factory™ is very light, reliable and highly resistant to friction for dynamic use. It can be used in many applications with all types of non-abrasive ropes. An ultra-light, compact ...

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NODUS FACTORY
single block
single block
BF-D®

Working load: 750 kg - 2,500 kg
Breaking load: 5,000, 1,800, 1,500 kg
Center diameter: 14, 10, 6 mm

BF®, Block-Friction® fiddle ring with FrD- duralumin friction ring has an exceptional weight to strength ratio (10 times lighter than a pulley), designed for high static loads. Block Friction® is used ...

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NODUS FACTORY
single block
single block
7385M

Center diameter: 25 mm

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NENUPHAR
single block
single block
31330

Working load: 200 kg
Breaking load: 420 kg
Weight: 45 g

Ball bearing sheave diam: 40 mm Max. rope diam. : 10 mm Breaking load: 420 kg

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NENUPHAR
single block
single block
7392

Center diameter: 20, 25, 28, 30 mm

Stanchion block.For stanchion diam. 20 mm to 25 mm Ball bearing sheave diam. 30 mm

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NENUPHAR
single block
single block
81460922

Articulated pulley which will facilitate the tension of the sail attached to the adjustment ring

single block
single block
PB

Working load: 600, 1,000, 400 kg

The design of the sheave mounting prevents the rope from easily snagging. The bolt used at the swivel joint section is a size larger as compared with the former one and strengthened. *Materials: SCS14 (equivalent to SUS316), Swivel/Swivel ...

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ASANO GLOBAL CO. LTD.
single block
single block
PB

Working load: 1.6, 700 t

Daruma Block type PB,Single Sheave (with Bearing) V sheave type PAT. Equipped with sheaves of V-shape that has been developed for using wire ropes. We have also U-type, 100mm diameter. *Material: SCS14 (equivalent ...

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ASANO GLOBAL CO. LTD.
single block
single block
AK1854

Working load: 2.5, 3 t

Heavy Duty Block Type-PB -Single Sheave The tough "Heavyduty Block" is reborn to be tougher. -Strength is improved by using a double arm for the top and a rib structure for the main body. Based ...

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ASANO GLOBAL CO. LTD.
double block
double block
GS3151 series

Swivel Double Sheave Block With Bridge Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished)

single block
single block
GS3141 series

Swivel Single Sheave Block With Bridge Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished)

single block
single block
YC40S

Working load: 500 kg
Breaking load: 1,000 kg
Weight: 60 g

Ø SHEAVE: 40mm SHACKLE: 5mm MAX Ø LINE: 8mm MAX WORKING LOAD: 500Kg BREAKING LOAD: 1000Kg LENGTH: 72mm WEIGHT: 60g

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UBI MAIOR ITALIA
single block
single block

Breaking load: 1,600 kg

Made entirely in anodised light alloy and AISI 316 stainless steel with delrin sheave. Suitable for genoa and spinnaker sheets. Code 198.332 For lines: Ø max 12 mm Black sheave length: 96 mm Breaking load: 1600 Kg, fixed by means ...

single block
single block
106886

Working load: 500 kg
Breaking load: 2,000 kg

The sheave assemblies are made out of anodized aluminium. Sheaves are fitted with a ball bearing system.

single block
single block
LB 2-to-1

Working load: 2, 3, 4, 7 t

The LB 2-to-1 snatch blocks are fitted with polymer bearing replaces the SB models (needle bearing). Facnor has designed this new stripped-down version made in aluminum for lighter, more simple and more attractive halyard ...

single block
single block
8369 series

Breaking load: 1,940, 1,240, 1,360 kg

double block
double block
8390 series

Breaking load: 1,940, 690, 1,160 kg

ratchet block
ratchet block

... the ATN SnapRatchet ATN now offers a SnapRatchet block to facilitate the dousing of the ATN spinnaker sleeve. The advantages of using the ATN SnapRatchet are threefold: The ATN SnapRatchet block ...

single block
single block
L-LB series

Working load: 1,500, 3,000, 2,000, 5,000 kg
Breaking load: 3,000, 6,000, 10,000 kg

LOOP® BLOCKS KOHLHOFF LOOP® Blocks are compact and lightweight multi-purpose snatch blocks fastened with a loop. The short standard loop minimizes damage to the deck, hull or superstructure. ...

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How to choose this product
sailboat-block

A sailboat block consists of one or more sheaves held between two cheeks or chocks. It increases mechanical advantage and can be used to alter the direction of lines running through it.

Applications

These devices have multiple uses on board including mainsail block and tackle, spinnaker sheet guide, barber hauler, hell block, deck block and downhaul tackle, among others.

Technologies

The great majority of cruising sailboat blocks are aluminum or stainless steel. Titanium blocks now can be found on some racing boats, while traditional craft have beautiful wooden blocks. Single, double and even triple blocks are used in block and tackle to increase mechanical advantage, as on a mainsail sheet.

Blocks can be attached via a becket, a swivel, a rotating tower with a jam or cam cleat, a fork, a fabric strop or be screwed to the deck or attached to another fitting. Blocks with narrow metal sheaves are used with cable or wire rope. Sheaves can ride on ball bearings, rollers or a simple friction axle. Ratchet blocks have internal teeth so that the sheave turns in one direction only, making it easier to keep tension on the line.

How to choose

Choice will depend on specific application, line diameter and the possible need for an integrated cleat. Blocks with rollers are generally the most efficient due to reduced friction and increased sturdiness.