Blocks

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single block
single block
KBS5

Working load: 500 kg
Breaking load: 1 t
Weight: 113 g

Weight - 0.113 kg Boat size - 10 to 110 ft Workload - 0,50 T Breaking load - 1,00 T

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Karver Systems
single block
single block
KBS10

Working load: 1 t
Breaking load: 2 t
Weight: 174 g

Weight - 0.174 kg Boat size - 10 to 110 ft Workload - 1,00 T Breaking load - 2,00 T

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Karver Systems
single block
single block
KBS10

Weight - 0.096 kg Boat size - 10 to 110 ft Workload - 1,00 T Breaking load - 2,00 T

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Karver Systems
double block
double block
RF15202

Working load: 240 kg
Breaking load: 700 kg
Weight: 23 g

Smallest and lightest ball bearing block available Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an ...

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Ronstan
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
401-001-02

Working load: 100 kg
Breaking load: 200 kg
Weight: 10 g

SINGLE BRASS 401-001-02 Purchase: 2 Comment :

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Seldén Mast AB
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
376

Working load: 113 kg
Breaking load: 544 kg
Weight: 11 g

The 16 mm is Harken’s 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 ...

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Harken
single block
single block
106886

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

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

single block
single block

Working load: 380 kg - 2,000 kg

– These blocks are made of a material GVX, designed from high resistance fiberglass.- Hooked with a toggle, an articulated toggle, or a shackle

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
ratchet block
ratchet block
EX1299

Ball bearing 57mm ratchet Optimist mainsheet block. Most economic ratchet block available.

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Optiparts - Windesign
single block
single block
10-05-UC

Working load: 1,750 kg

10 Series Single Block with Stainless Steel cheeks and Aluminum "universal circuit" ball bearing sheave. Aluminum sheave run on Delrin(tm) ball bearings for a very strong yet low-friction sheave. Stainless Steel D shackle ...

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Schaefer
single block
single block
93130A

Working load: 450 kg
Breaking load: 900 kg

Block for Barberhaul Art. 8773 Subject to errors and changes

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BSI A/S
single block
single block
SB20T-30-SF4

Working load: 20 t

... has led marine and industrial engineering, delivering reliable equipment for demanding environments. The Petec 20-Ton Snatch Block, specifically designed for the commercial fishing industry, combines exceptional durability ...

single block
single block

When it comes to versatile lifting operations, our SP Snatch Block offer a wide variety of options. We provide snatch blocks designed to meet your specific requirements, ensuring efficient and safe lifting ...

double block
double block
GS3151 series

Swivel Double Sheave Block With Bridge Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished) Swivel Double Sheave Block With Bridge are compact and lightweight multi-purpose ...

single block
single block
GS3141 series

Swivel Single Sheave Block With Bridge Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished) Swivel Single Sheave Block With Bridge are compact and lightweight multi-purpose ...

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

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
AK10207

Working load: 1,000 kg
Weight: 3 kg

This block features a ball bearing for stabler sheave rotation compared to our existing snatch blocks that use bushing (AK Snatch Block Type Ⅲ-A). The hook type snatch enables smooth ...

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ASANO GLOBAL CO. LTD.
single block
single block
AK10083

Enough width of the sheave allows ropes and knotting to pass through. The bearings inside the sheave facilitate smooth rotation. The edges of the sheave are designed to fit into the main body to prevent ropes from getting tangled. Improved ...

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ASANO GLOBAL CO. LTD.
single block
single block
81460922

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

single block
single block

Marco supplies various models of purse and tow blocks for tuna vessels of all sizes. Their lightweight, compact design reduces wear in sheaves and lines. Characteristics - These blocks stand ...

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
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
LS1100

Working load: 3,500 kg
Weight: 438 g

Looper series, single block, sheave Ø100, SWL 3500 kg, with snap-loop

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Antal
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
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
single block
single block
EZ

The TurboSwing EZ Pulley™ is designed to provide smooth pulls every time. Featuring a self-lubricating Delrin roller, the EZ Pulley helps reduce friction on the rider by allowing a smooth lateral transition along the TurboSwing tow bar. ...

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How to choose this product
block

A block comprises a sheave, or wheel held between two cheeks and a fitting to attach the unit to a fixed point. Its use multiplies mechanical advantage and reduces wear on the lines that run through it.

Applications

Blocks are used to make up block and tackle to increase purchase, as well as for halyard, sheet and other leads. Thus, they are typically found on sailboats, but may be used on any type of boat or ship, even if only for hoisting a flag or for davit operation.

Technologies

Block sheaves can be single, double, triple or even more. Most are of aluminum, stainless steel or titanium, though wood is often used on traditional sailboats. Cable blocks usually have a metal sheave. In friction blocks, the sheave is in direct contact with the axle, while other types have ball bearings or rollers.

Ratchet blocks have internal springs and a toothed mechanism to keep tension on the line between two pulls. They are most common in dinghy sailing. Block anchoring is via a shackle, a swivel or snap shackle, a fork or another system, which will depend on the rotational or torsional freedom of movement required.

How to choose

Roller models are probably the most efficient, combining the friction reduction of ball bearings and the superior sturdiness of the roller. Each block's rated operational and breaking load must be respected, as well as the maximum line diameter it can handle.