Sailboat blocks

46 companies | 1,064 products
{{#pushedProductsPlacement4.length}} {{#each pushedProductsPlacement4}}
{{product.productLabel}}
{{#if product.activeRequestButton}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}}
{{/each}} {{/pushedProductsPlacement4.length}}
{{#pushedProductsPlacement5.length}} {{#each pushedProductsPlacement5}}
{{product.productLabel}}
{{#if product.activeRequestButton}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}}
{{/each}} {{/pushedProductsPlacement5.length}}
single block
single block
60120

Working load: 240 kg
Breaking load: 500 kg
Thickness: 14 mm

Single plainl bearing block - Sheave 18 - cheek block Complete range of plain bearing blocks Modern design > Withstand high loads Ideal for static operations The sheave runs on ...

See the other products
Wichard
double block
double block
60213

Working load: 320 kg
Breaking load: 700 kg
Thickness: 28 mm

Double plain bearing block - Sheave 18 - Fixed eye Complete range of plain bearing blocks Modern design > Withstand high loads Ideal for static operations The sheave runs on the stainless steel ...

See the other products
Wichard
triple block
triple block
60313

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

Triple plain bearing block - Sheave 18 - Fixed eye Complete range of plain bearing blocks Modern design > Withstand high loads Ideal for static operations The sheave runs on the stainless steel ...

See the other products
Wichard
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 ...

See the other products
Spinlock
single block
single block
376

Working load: 113 kg
Breaking load: 544 kg

The 16 mm is Harkens® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 ...

See the other products
Harken
single block
single block
HT925 series

Working load: 120 kg - 300 kg
Breaking load: 550, 350, 400, 600 kg

20MM MININOX BLOCKS STAINLESS CHEEKS Large window to reduce weight and allow easy rinsing ROLLER BEARING SYSTEM Delrin needle bearing enables high static load applications TECHNICAL Sheave: Diameter ...

See the other products
Holt
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 ...

See the other products
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, ...

See the other products
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 ...

See the other products
Karver Systems
single block
single block
LL1060

Working load: 1,000 kg

<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: ...

See the other products
Antal
single block
single block
402-001-01

Working load: 70 kg
Breaking load: 140 kg

SPECIFICATIONS Weight: 6.00 g Safe working Load: 70 kg Breaking Load: 140 kg Max line size: 6 mm Purchase: 2 Mounting: 90

See the other products
Seldén Mast AB
single block
single block
401-001-01

Working load: 70 kg
Breaking load: 140 kg

SPECIFICATIONS Weight: 6.00 g Safe working Load: 70 kg Breaking Load: 140 kg Max line size: 6 mm Purchase: 2 Mounting: 90 0

See the other products
Seldén Mast AB
single block
single block
401-001-02

Working load: 100 kg
Breaking load: 200 kg

SPECIFICATIONS Weight: 10.00 g Safe working Load: 100 kg Breaking Load: 200 kg Max line size: 6 mm Purchase: 2 Mounting: 90 0

See the other products
Seldén Mast AB
single block
single block
RF50100

Working load: 500 kg
Breaking load: 1,500 kg

SERIES 50 RF50100 FEATURES Low friction, 2-stage ball bearing system High static and dynamic load capacity Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled ...

See the other products
Ronstan
single block
single block
90500

Working load: 300 kg
Breaking load: 1,200 kg

Ratchet Blocks The new Barton Ratchet Block is designed to be used on mainsheet systems and spinnaker sheets on dinghies and keelboats, and for small yachts up to 30 feet. Combining high performance ...

See the other products
Barton Marine
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 ...

double block
double block
A2032P / A2033P

Breaking load: 1,250 kg

... A2032P is a plain bearing version of our A2032 dynamic cheek block. The A2032P is made using 100% recycled plastics and the well-known Allen UltraStrap. Ideal for elastic take up systems. This block looks ...

See the other products
Allen Brothers
single block
single block
3526550200

Versatile cheek block for 12 mm rope with easy running stainless steel ball bearing. Further advantages at a glance: side parts and pulley made of UV-resistant, glass-fibre reinforced plastic no sharp ridges ...

See the other products
SPRENGER
single block
single block
1692 series

Working load: 1,200, 1,650, 3,000 kg

Rutgerson’s Clewblocks have a 60mm, 80mm or 100mm removable acetal sheave and are available in both silver and black anodized cheek plates. The webbing slots are smoothly rounded in order to prevent chafe for maximum durability, and the ...

See the other products
Rutgerson
single block
single block
B300301B

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

Single block with spherical plain bearing and composite sides and sheave

See the other products
Rutgerson
single block
single block
B300501B

Working load: 700 kg
Breaking load: 1,250 kg

Single block with spherical plain bearing and composite sides and sheave

See the other products
Rutgerson
single block
single block
MB 3 High Load

Working load: 1,000 kg
Breaking load: 2,000 kg

... semi-static applications such as: mast base lead blocks, halyard blocks, runners and highly loaded lines. High Performance bearings are ideal for demanding applications such as sheets and control lines ...

See the other products
MORFRAC
single block
single block
MB 6 High Load

Working load: 4,500 kg
Breaking load: 9,000 kg

... semi-static applications such as: mast base lead blocks, halyard blocks, runners and highly loaded lines. High Performance bearings are ideal for demanding applications such as sheets and control lines ...

See the other products
MORFRAC
single block
single block
MB 1XL High Load

Working load: 1,200 kg
Breaking load: 2,400 kg

... semi-static applications such as: mast base lead blocks, halyard blocks, runners and highly loaded lines. High Performance bearings are ideal for demanding applications such as sheets and control lines ...

See the other products
MORFRAC
single block
single block
PO

Breaking load: 400, 500, 700 kg

... and safe adjustment. The T® shackle is a textile shackle specially designed for a lashing block. + USE - Universal textile fastener for lashing block - Easy to use ¬ Closure ¬ Cape knot® ¬ Quick ...

See the other products
NODUS FACTORY
single block
single block
30/40

Breaking load: 500, 700 kg

... - For the GV hoist on the textile trousers. Data sheet - Friction ring D ¬ Hardened anodized Duralumin ring ¬ black - Block® ring, clamping and holding ring, made of soft Thermoplastic TPE. - Composite pulley body; ...

See the other products
NODUS FACTORY
single block
single block
Spi 4 Nub®

Breaking load: 3,000 kg

Spi 4®, is a Nub pulley on an adjustable “tie” strap allowing the fixation of the spi stack on the bowsprit. Adjustable fastening thanks to the Nodex® lashing. + Use - Spi pulley for bowsprit. - You can adjust the tack position ...

See the other products
NODUS FACTORY
single block
single block
AK S

... pin: SUS316 *Working load limit does not apply to the becket. *Safety working load is set variously in each country. Our blocks safety working load is decided around from 1/8 to 1/10 of their breaking load. *AK1625(Size ...

See the other products
ASANO GLOBAL CO. LTD.
double block
double block
AK S

Working load: 300 kg

... pin: SUS316 *Working load limit does not apply to the becket. *Safety working load is set variously in each country. Our blocks safety working load is decided around from 1/8 to 1/10 of their breaking load. *AK1625(Size ...

See the other products
ASANO GLOBAL CO. LTD.
single block
single block
Mini-Block

*Materials: SUS304, Sheave: Nylon *Safety working load is set variously in each country. Our blocks safety working load is decided around from 1/8 to 1/10 of their breaking load. *Actual sheave size of a size 40 is 42.

See the other products
ASANO GLOBAL CO. LTD.
single block
single block
2250

Working load: 410 kg
Breaking load: 1,000 kg

» Aluminum material with high strength, delicacy appearance, longer block life » Preservative treatment » Delrins balls » Stainless steel accessories. Use for: Sheets Main/jib sheets Control lines Head can ...

See the other products
Blue Shark Marine Ltd.
single block
single block
2310

Working load: 500 kg
Breaking load: 1,600 kg

» Aluminum material with high strength, delicacy appearance, longer block life » Preservative treatment » Delrins balls » Stainless steel accessories. Use for: Mainsheet fine-tune Main/jib sheets Control lines Vangs Outhauls Delrin ...

See the other products
Blue Shark Marine Ltd.
single block
single block
2770

Working load: 2,000 kg
Breaking load: 4,000 kg

» Aluminum material with high strength, delicacy appearance, longer block life » Preservative treatment » Stainless steel accessories. Use for: Mainsheet fine-tune Main/jib sheets Control lines Vangs Outhauls Head ...

See the other products
Blue Shark Marine Ltd.
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
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

single block
single block

Working load: 1,800, 3,000, 4,000 kg
Breaking load: 3,600, 6,000, 8,000 kg

Our Carbon Blocks are produced with emphasis on design and strength. The blocks have aluminium ball bearing sheaves and are bolted together with allen screws for easy disassembling if needed.

See the other products
OH MARINE EQUIPMENT
double block
double block
GS3151 series

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

single block
single block
GS3141 series

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

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
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

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
YC50M

Working load: 750 kg
Breaking load: 1,500 kg

sheave: 50mm shackle: 6mm max Ø line: 10mm bl: 1500Kg mwl: 750g lenght: 98mm weight: 105g Description: stand-up/aluminum/delrin/ball bearing/shackle

See the other products
UBI MAIOR ITALIA
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.