Single 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
single block
single block
RBB series

Seldén has expanded their range of Roller Bearing Blocks with larger singles and single/stand-ups in series ø100 and a ø130 mm. “- Boatbuilders call for these blocks ...

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Seldén Mast AB
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
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
RF25109

Working load: 250 kg
Breaking load: 550 kg
Weight: 9 g

... incredible Series 20 Orbit Block™ is capable of loads up to 250kg (550lb) while weighing a mere 9 grams. It’s so light that it needs to be lashed down! Series 20 BB Orbit Block™ Lashing Head User Instructions N.B. ...

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Ronstan
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
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
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
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
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
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 ...

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 ...

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
AK10202

Working load: 1,000 kg
Weight: 2,700 g

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

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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
single block
single block
70113

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

... removed for maintenance Applications For dinghies and catamarans applications: genoa sheets, boom vang, footmast block, masthead block… For larger yachts: barber-hauler, various, control lines… Materials ...

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Wichard
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. ...

single block
single block
3567029000

Working load: 300 kg
Breaking load: 600 kg
Weight: 120 g

optimized rope guidance by specially formed cheek parts and trap of stainless steel for more security and stability wobble riveting avoids sharp burrs on the rivet head marking of the maximum rope Ø in the enhancing strap cheek of ...

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SPRENGER
single block
single block
A2020

Working load: 115 kg
Breaking load: 540 kg

... bearing blocks on the market. The range is available with different types of accessories including lacing eyes, hooks, swivels and cleats. The range also features a central rivet that provides great options as a tie on ...

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Allen Brothers
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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.