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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 / 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
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 / 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 / for sailboats
plain bearing block
NEX 2.5 / 5.0

General description The halyard block is an optional accessory to be used with Profurl flying sails furlers. Integrated into the top swivel, it allows to optimize the luff length. The sheave box stands half of the load ...

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 / 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
swivel block / single / with swivel / for sailboats
swivel block
GS3141NL

Description: Swivel Single Nylon 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

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
plain bearing block / single / with becket / for classic sailboats
plain bearing block

These custom-made blocks feature a Canadian penny and are available with or without a becket.$95.00 USD

ratchet block / single / with swivel / max. rope ø 10 mm
ratchet block
2625.HTE

Working load: 227 kg
Breaking load: 907 kg

... high-threshold engage) version of the 57 mm Carbo Ratchamatic blocks was made stiffer to delay the point where the ratchet engages, allowing the block to run free more of the time. The ratchet function ...

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Harken
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
plain bearing block / single / lashing / max. rope ø 6 mm
plain bearing block
RF25109

Working load: 250 kg
Breaking load: 550 kg

Features Integrated stainless steel hub to accept lashing attachment and through-sheave becket Suits up to 4mm (5/32”) lashing Includes 750 mm (30") x 1.7mm (1/16") diam lashing

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Ronstan
plain bearing block / single / hook / for sailing dinghies
plain bearing block
EX1340

Optimist hook-in block red Optiparts This plain bearing aluminium sheave block is perfect to use on the Silver Optimist mast. Round fiberglass filled nylon case designed to fit correctly on the round ...

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Optiparts - Windesign
ratchet block / single / with swivel / max. rope ø 12 mm
ratchet block
A2160

Working load: 275 kg
Breaking load: 1,000 kg

AutoRatchet The Allen AutoRatchet Blocks were the first of their kind on the market some 200 years ago. Years of constant development, with the world's top sailors, has lead us to the release our new generation X2 ...

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Allen Brothers
plain bearing block / single / base plate / boat
plain bearing block
622ST-10ALNB

Edson’s Articu-Lock Sheaves – Ideal for performance sailboats, cruising/racing catamarans and high-tech cruising yachts above 27 feet. Edson engineers have designed this new sheave to be lightweight, strong and extremely easy to align ...

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Edson International
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
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 ...

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RWO
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

How to choose this product

single-block

A single block has only one sheave. Models differ in size, sturdiness, attachment and bearing systems.

Applications

Such blocks can be used in two-line block and tackle, as an intermediary pulley in multi-block tackle or as a line lead block.

Technologies

Each of the many different attachment systems is appropriate for a particular type of block. There are two main bearing configurations. In blocks with mechanical or plastic ball bearings, two sets of bearings support the load in races on either side of the sheave.

Roller bearings sit in pairs between the races within the sheave. While sometimes found in small blocks, they are more often used in large-diameter models, as they can support higher loads and wear more slowly.

How to choose

Line diameter and working load will be the main choice criteria. Manufacturers include detailed technical information in their catalogs.