Blocks

53 companies | 1,209 products
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high-resistance block / ball bearing / single / lashing
high-resistance block
KB6

Working load: 220 kg
Breaking load: 440 kg

The KB blocks feature roller bearing. For high load requirements, we recommend using our KBC range (featuring a self lubricated plain bearing).

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Karver Systems
high-resistance block / roller bearing / single / lashing
high-resistance block
KB8

Working load: 600 kg
Breaking load: 1,200 kg

The KB blocks feature roller bearing. For high load requirements, we recommend using our KBC range (featuring a self lubricated plain bearing).

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Karver Systems
high-resistance block / roller bearing / single / lashing
high-resistance block
KB10

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

The KB blocks feature roller bearing. For high load requirements, we recommend using our KBC range (featuring a self lubricated plain bearing).

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Karver Systems
plain bearing block / single / with fixed head / max. rope ø 6 mm
plain bearing 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

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Seldén Mast AB
plain bearing block / single / with fixed head / max. rope ø 6 mm
plain bearing 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

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Seldén Mast AB
plain bearing block / single / with fixed head / max. rope ø 6 mm
plain bearing 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

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Seldén Mast AB
snatch block / friction / mast foot / single
snatch block
21104

Working load: 800 kg
Breaking load: 2,000 kg

... soft block - for max rope size 10 mm Wichard is proud to present the MXLEvo: a soft block solution designed for all yachtsmen, whether amateur or pro. Designed for heavy load applications (mast foot, ...

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Wichard
snatch block / friction / single / lashing
snatch block
21105

Working load: 1,600 kg
Breaking load: 3,800 kg

... soft block - for max rope size 12 mm Wichard is proud to present the MXLEvo: a soft block solution designed for all yachtsmen, whether amateur or pro. Designed for heavy load applications (mast foot, ...

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Wichard
snatch block / friction / single / lashing
snatch block
21106

Working load: 2,500 kg
Breaking load: 5,000 kg

... mast foot block, halyard tackle, barber hauler, block and tackle, sheet return, large sail foot, etc.). Lightweight, robust and highly compact: MXLEvo provides exceptional resistance for its weight. ...

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Wichard
plain bearing block / cheek / single / with swivel
plain bearing block
HTX

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
fiddle block / ratchet / ball bearing / single
fiddle block
Racing

Working load: 800 kg - 15,000 kg

Product Description 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 ...

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Lewmar
plain bearing block / mast foot / single / with swivel
plain bearing 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
plain bearing block / single / with swivel / max. rope ø 8 mm
plain bearing block
B300301B

Working load: 450 kg
Breaking load: 850 kg

Single block with spherical plain bearing and composite sides and sheave

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Rutgerson
plain bearing block / single / with swivel / max. rope ø 12 mm
plain bearing block
B300501B

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

Single block with spherical plain bearing and composite sides and sheave

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Rutgerson
plain bearing block / single / with swivel / max. rope ø 14 mm
plain bearing block
B300601B

Working load: 1,150 kg
Breaking load: 2,100 kg

Single block with spherical plain bearing and composite sides and sheave

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Rutgerson
swivel block / single / with swivel / for sailboats
swivel block
GS314

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

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GMTmarine
swivel block / double / with swivel / for sailboats
swivel block
GS315

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

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GMTmarine
swivel block / single / with swivel / for sailboats
swivel block
GS3141

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

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GMTmarine
single block / with swivel / for sailboats
single block
8369

Working load: 300, 500 kg

double block / with swivel / for sailboats
double block
8390

Working load: 300, 500 kg

ball bearing block / single / max. rope ø 16 mm / for sailboats
ball bearing block
801

Working load: 3,100 kg
Breaking load: 6,200 kg

The 6082 T6 aluminum body, the torlon ball bearing system and the AISI316 CrNi stainless steel parts are designed for very high loads

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Admiral Marine Equipment
ball bearing block / single / with becket / max. rope ø 16 mm
ball bearing block
802

Working load: 3,100 kg
Breaking load: 6,200 kg

The 6082 T6 aluminum body, the torlon ball bearing system and the AISI316 CrNi stainless steel parts are designed for very high loads

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Admiral Marine Equipment
ball bearing block / single / max. rope ø 16 mm / for sailboats
ball bearing block

Working load: 3,100 kg
Breaking load: 6,200 kg

The 6082 T6 aluminum body, the torlon ball bearing system and the AISI316 CrNi stainless steel parts are designed for very high loads

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Admiral Marine Equipment
mast foot block / single / for sailboats
mast foot 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 ...

ball bearing block / single / lashing / max. rope ø 8 mm
ball bearing block
RF35109HL

Working load: 550 kg
Breaking load: 1,650 kg

... and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible. Multi-sheave ...

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Ronstan
plain bearing block / cam cleat / cheek / single
plain bearing block
BRS Series

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
cam cleat block / cheek / vertical / built-in
cam cleat block
HT925XX Serie

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 ...

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Holt
high-resistance block / single / lashing / max. rope ø 10 mm
high-resistance block
LL1060

Working load: 1,000 kg

TECHNICAL CHARACTERISTICS ATTRIBUTE VALUE Ø sheave (D) 60 mm Side bearing Delrin balls Radial bearing composite fibre Weight 95 gr Ø max line 10 mm SWL 1000 kg Material Aluminum Sheave material Plastic

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Antal
ball bearing block / single / with fixed head / max. rope ø 5 mm
ball bearing 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 ...

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Harken
plain bearing block / single / with fixed head / max. rope ø 8 mm
plain bearing block
A2030P / A2031P

Breaking load: 750 kg

... This combination results in a 20% weight saving over the existing range as well as improving the overall performance. This block looks very similar to the 30mm Dynamic version. To differentiate we have changed the sheave ...

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Allen Brothers
plain bearing block / single / with fixed head / max. rope ø 6 mm
plain bearing block
01-02

Working load: 340 kg

Sheave Dia. Thickness 3/4" (19mm), Thickness 15/32" (12mm), Width7/8" (22mm), Length 1 13/32" (35mm), SWL 750 lbs (340kg), Weight 1 oz. (28g) Max Line 1/4" (6mm)

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Schaefer
ratchet block / with swivel / for sailing dinghies / plastic
ratchet block
EX1299

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

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Optiparts - Windesign
built-in block / single / with fork / max. rope ø 12 mm
built-in 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 ...

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SPRENGER
ball bearing block / single / with becket / with fixed head
ball bearing block
R1242

Description:15mm Hi-Per Single & Bkt Category:Blocks Subcategory:15 Block Series Series:High Performance Block Type:Single Bearing Type:Ball Sheave Diameter (mm):15 Sheave Material:Stainless ...

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RWO
roller bearing block / with fixed head / for classic sailboats / wooden
roller bearing block

From over 20 years Solimar produces wooden, tuphnol, stainless steel blocks bronze fittings for classical boats. All the fittings are made with outer original shape by using modern technologies. Many versions and type ...

single block / steering system guide / aluminum
single block
ICW / IPW

The Jefa cross wire and parallel wire idlers are made of high strength aluminium plating for the ultimate in strength and durability. All parts are CNC machined to the final dimensions. The cross wire idler is used in a conventional idler ...

ball bearing block / single / with fork / for sailboats
ball bearing block

Special pulley made to split the backstay. The s.s. pulley’s race is shaped in order to be compatible with multi-strand steel wires, thus granting long duration.

cheek block / vertical / single / max. rope ø 20 mm
cheek block
00 160 / 10 160

Working load: 275 kg
Breaking load: 550 kg

This month, we are launching the brand new Series 0 Cheek Blocks, which are ideal for use on dinghies and dayboats. Featuring both plain bearing and ball bearing options, this new design is perfect for horizontal or vertical ...

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Barton Marine
friction block / single / lashing / max. rope ø 12 mm
friction block
CSS41 / CSS42 / CSS43

These lightweight aluminum blocks can be used for low movement applications like split backstays, running backs, or for setting up your own purchase system for an adjustable Backstay or Boomvang. Great for Inhaulers too! ...

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Colligo Marine
plain bearing block / double / for aquaculture
plain bearing block

Hvalpsund Net offers a wide range of miscellanious, high quality steel goods. Take a look at our products:

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.