Single blocks

42 companies | 767 products
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ball bearing block
ball bearing block
RF35109HL

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

... 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
plain bearing block
60600

Working load: 120 kg
Breaking load: 300 kg

Single plain bearing block - Stainless steel sheave 12 - Fixed eye Description Complete range of plain bearing blocks Modern design Withstand high loads Ideal for static operations The ...

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Wichard
plain bearing block
plain bearing block
60113

Working load: 240 kg
Breaking load: 500 kg

Single plain bearing block - Sheave 18 - Fixed eye Description Complete range of plain bearing blocks Modern design > Withstand high loads Ideal for static operations The sheave ...

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Wichard
cheek block
cheek block
60120

Working load: 240 kg
Breaking load: 500 kg

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

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Wichard
plain bearing block
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
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
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
plain bearing block
plain bearing block
HT961 series

Working load: 2,100, 1,000, 5,000, 3,400 kg
Breaking load: 4,000, 2,000, 10,000, 7,000 kg

... Anodised Aluminium Cheeks : Hard Anodised Aluminium Axle : Hard Anodised Aluminium USAGE Runner Blocks Mainsheet Genoa Lead Mast Foot Blocks

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Holt
ball bearing block
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
ball bearing block
ball bearing block
391

Working load: 113 kg
Breaking load: 181 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
ball bearing block
ball bearing block
405

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
plain bearing 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
fiddle block
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
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
plain bearing 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
high-resistance block
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
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
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
plain bearing block
S0701

Working load: 1,500 kg

TECHNICAL CHARACTERISTICS ATTRIBUTE VALUE Ø sheave (D) 75 mm Side bearing Delrin balls Radial bearing composite fibre Weight 0,39 kg Ø max line 14 mm SWL 1500 kg Material S.steel Sheave material Plastic Shackle Mod. 008SS

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Antal
cheek block
cheek 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 ...

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Rutgerson
plain bearing block
plain bearing block
B300301BT

Working load: 380 kg - 1,430 kg
Breaking load: 700, 1,250, 1,540, 2,600 kg

... Toggle-head blocks have the same design with a spherical plain bearing and high-tech composite material as the standard blocks but with a swiveling toggle-head and clevis pin instead of a shackle. These ...

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Rutgerson
friction block
friction block
B409081

Working load: 2,500 kg

The latest member of our popular ROC Block family is an assortment of extremely strong and durable deck blocks in aluminum. They have the same innovative roller-bearing system as our reliable ROC Blocks, ...

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Rutgerson
single block
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 ...

friction block
friction block
MB 1XL High Load

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

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Morfrac
friction block
friction block
MB 5XL Ti

Working load: 5,000 kg
Breaking load: 10,000 kg

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Morfrac
high-resistance block
high-resistance block
MB 5W

Working load: 5,000 kg
Breaking load: 1,000 kg

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Morfrac
swivel block
swivel 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
8369

Working load: 300, 500 kg

ball bearing block
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
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
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
friction block
friction block
U4

Working load: 4,000 kg
Breaking load: 8,000 kg

Light weight low friction block. Best for sheetlines, runners or mast based halyard blocks for the boats more than 40ft SWL: 4000kg MBL: 8000kg RTM Carbon Frame Dyneema teflon covered loop

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Ropeye Llc
cam cleat block
cam cleat block
82999

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

High Load Blocks manufactured from marine grade aluminium and 'Spectro' grey anodised for high UV stability and durability. Sheaves are precision urned from solid 'Ertalyte' bar with a profile that is kind to modern ...

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Barton Marine
ball bearing block
ball bearing 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.

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OH MARINE EQUIPMENT
plain bearing block
plain bearing block
A2030P / A2031P

Breaking load: 750 kg

... well as improving the overall performance. This block looks very similar to the 30mm Dynamic version. To differentiate we have changed the sheave colour to grey. Plain Bearing Multi-Function Single

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Allen Brothers
ball bearing block
ball bearing 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 ...

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Schaefer
plain bearing block
plain bearing 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 ...

built-in block
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
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
friction block
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
vertical block
vertical block

Working load: 5 kg - 12,000 kg
Breaking load: 17,000 kg

TURKEY THE FIRST CARBON POLE Bodrum İçmeler prop shipyard since 2004 in manufacturing aluminum pole today, deck and rigging hardware service providers Velenamast, Turkey' s produced has signed the first carbon mast. Velenamast has produced ...

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.