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roller bearing block / triple / lashing / max. rope ø 6 mm
roller bearing block
KBO1

Working load: 350 kg
Breaking load: 700 kg

The KBO blocks are our mainstream range of lashing block. The KBO blocks are available in simple, double and triple up to the KBO8. From the KBO1 to the KBO8, the blocks ...

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Karver Systems
roller bearing block / triple / lashing / max. rope ø 8 mm
roller bearing block
KBO2

Working load: 450 kg
Breaking load: 900 kg

The KBO blocks are our mainstream range of lashing block. The KBO blocks are available in simple, double and triple up to the KBO8. From the KBO1 to the KBO8, the blocks ...

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Karver Systems
roller bearing block / triple / lashing / max. rope ø 8 mm
roller bearing block
KBO4

Working load: 900 kg
Breaking load: 1,800 kg

The KBO blocks are our mainstream range of lashing block. The KBO blocks are available in simple, double and triple up to the KBO8. From the KBO1 to the KBO8, the blocks ...

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Karver Systems
plain bearing block / triple / with swivel / with shackle
plain bearing block
HTX

Working load: 1,100, 2,000, 800, 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 / triple
fiddle block

Working load: 2,200 kg
Breaking load: 4,400 kg

Lewmar 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 ...

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Lewmar
plain bearing block / mast foot / triple / with swivel
plain bearing block
Synchro

Working load: 800, 450, 1,100, 2,000 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 / triple / with swivel / max. rope ø 12 mm
plain bearing block
PBB 50

Working load: 700 kg
Breaking load: 1,400 kg

... working load: 700 kg Breaking load: 1400 kg Max line size: 12 mm Pin diam: 5 mm Shackle diam: 5 mm System: PBB50 Block type: triple

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Seldén Mast AB
cam cleat block / plain bearing / triple / with becket
cam cleat block
PBB 50

Working load: 700 kg
Breaking load: 1,400 kg

... Safe working load: 700 kg Breaking load: 1400 kg Max line size: 12 mm Pin diam: 5 mm Shackle diam: 5 mm System: PBB50 Block type: tripleBecketCam

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Seldén Mast AB
plain bearing block / triple / with swivel / with becket
plain bearing block
PBB 60

Working load: 1,100 kg
Breaking load: 2,200 kg

... working load: 1100 kg Breaking load: 2200 kg Max line size: 14 mm Pin diam: 6 mm Shackle diam: 6 mm System: PBB60 Block type: tripleBecket

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Seldén Mast AB
roller bearing block / triple / with swivel / max. rope ø 10 mm
roller bearing block
94305

Working load: 480 kg
Breaking load: 1,200 kg

Commentary Complete range of blocks Excellent high-speed low load and high-function load characteristics Interchangeable head fastening systems for multiple attachment methods Protection of the sheave ...

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Wichard
roller bearing block / triple / with swivel / with becket
roller bearing block
94306

Working load: 480 kg
Breaking load: 1,200 kg

Commentary Complete range of blocks Excellent high-speed low load and high-function load characteristics Interchangeable head fastening systems for multiple attachment methods Protection of the sheave ...

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Wichard
cam cleat block / triple / with swivel / with cleat
cam cleat block
94307

Working load: 480 kg
Breaking load: 1,200 kg

Commentary Complete range of blocks Excellent high-speed low load and high-function load characteristics Interchangeable head fastening systems for multiple attachment methods Protection of the sheave ...

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Wichard
plain bearing block / triple / with swivel / max. rope ø 8 mm
plain bearing block
B300381B

Working load: 450 kg
Breaking load: 850 kg

Triple block with spherical plain bearing and composite sides and sheaves

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Rutgerson
plain bearing block / triple / with swivel / max. rope ø 12 mm
plain bearing block
B300581B

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

Triple block with spherical plain bearing and composite sides and sheaves

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Rutgerson
plain bearing block / triple / with swiveling toggle / max. rope ø 14 mm
plain bearing block
B300681B

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

Triple block with spherical plain bearing and composite sides and sheaves

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Rutgerson
ball bearing block / triple / with fixed head / max. rope ø 19 mm
ball bearing block
19.86

Working load: 610 kg
Breaking load: 1,300 kg

Treble Ball Race Block with shackle Breaking load: 1300 kg Safe work load: 610 kg

ball bearing block / triple / with becket / max. rope ø 19 mm
ball bearing block
19.88

Working load: 610 kg
Breaking load: 1,300 kg

Treble Ball Race Block with shackle Breaking Load: 1300kg Work Load:610kg

roller bearing block / triple / with swivel / max. rope ø 6 mm
roller bearing block
HT92534

Working load: 300 kg
Breaking load: 600 kg

... Material: Acetal resin 316 stainless steel straps Axle: 316 stainless steel Line size:2.5 - 6mm USAGE Control Lines Lead Blocks Vang Cascades Cunningham Systems Halyard Leads Rig Tension Systems - (Boat Breakers)

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Holt
ball bearing block / triple / with fixed head / max. rope ø 5 mm
ball bearing block
408

Working load: 318 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.

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Harken
fiddle block / triple / with shackle / for sailboats
fiddle block
40-01 US

Working load: 2,800 lb

length:8width:3-7/8 weight:18 OZshackle:5/16 sheave diameter: 2-5/8 Comes with set screw to make it fixed shackle. Safe working load is 2800 lbs.

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Garhauer Marine
cam cleat block / ratchet / triple / with swivel
cam cleat block
3537671055

Working load: 225 kg
Breaking load: 900 kg

Ratchet block (right ratcheting) for 6-10 mm rope with a special coated aluminium pulley. The swivel can be rotated 360°, but can be fixed by tightening the screws on both sides. The shape-retaining stainless steel tab ...

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SPRENGER
ball bearing block / triple / with swivel / for sailboats
ball bearing block
505-90

Working load: 795 kg

Triple block with Stainless Steel cheeks. Works with 505-93 for a powerful 6:1 purchase. Swivel head may be locked in place with the adjustment of an set screw. Delrin(tm) sheaves ensure smooth operation ...

ball bearing block / triple / with fixed head / max. rope ø 6 mm
ball bearing block
A2024

Working load: 300 kg
Breaking load: 650 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
plain bearing block / triple / with swivel / hook
plain bearing block
R8540

Breaking load: 300 kg

Description:18mm Micro Triple & Hook Category:Blocks Subcategory:17 Block Series Series:Stainless Block Type:Hook Blocks Bearing Type:Plain Weight (grm):44 Sheave ...

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RWO
plain bearing block / triple / with becket / for sailboats
plain bearing block
S210E3

ball bearing block / triple / with swivel / for sailboats
ball bearing block
HT 2024

PRODUCT DESCRIPTION SPECIAL FEATURES OF THESE BLOCKS: STAINLESS STEEL BALLS RUNNING OVER STAINLESS STEEL RAILS RESULT IN A HIGH CAPACITY AND PERFORMANCE FOR A SUCH A COMPACT PRODUCT.COLD FORGED RADIUSED HEAD INCREASE ...

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Nautos
ball bearing block / triple / with fixed head / for sailing dinghies
ball bearing block
SB-1605F

Working load: 120 kg
Breaking load: 550 kg

Master's smallest block, 16mm is designed for small synthetic control lines found on dinghies. Stainless Steel Ball Bearing provides the good and smooth rotation and polished 316 L Stainless Steel sideplates give optimal ...

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Master
ball bearing block / triple / with swivel / max. rope ø 30 mm
ball bearing block
711319

Working load: 9,000 kg
Breaking load: 18,000 kg

Our High Performance blocks are developed 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. The ...

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OH MARINE EQUIPMENT
ball bearing block / triple / with swivel / max. rope ø 10 mm
ball bearing block
YC50T

Working load: 750 kg
Breaking load: 1,500 kg

sheave: 50mm shackle: 6mm max Ø line: 10mm bl: 1500Kg mwl: 750g lenght: 95mm weight: 230g Description: triple/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / triple / with fixed head / max. rope ø 8 mm
ball bearing block
2102

Working load: 700 kg
Breaking load: 1,200 kg

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BlueShark Yacht Co., Ltd.
plain bearing block / triple / with fixed head / for sailboats
plain bearing block
S0308

plain bearing block / triple / for classic sailboats
plain bearing block
EYTXX Series

Working load: 300 kg - 1,000 kg

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Esprit Yachting
plain bearing block / triple / with fixed head / for classic sailboats
plain bearing block
SISTERHOOKS

Wood: elm or teak Bindings: stainless steel Sheave: delrin Constuction: solid wood Finishing treatment: elm finish gloss

How to choose this product

triple-block

A triple block has three sheaves, sometimes with metal or plastic ball bearings.

Applications

Such blocks can be part of six- or seven-line tackle. This degree of mechanical advantage is particularly useful on downhauls, running backstays and wherever loads are especially heavy.

Technologies

The manner in which the lines are passed through the sheaves is essential. They must cross at the right place to avoid rubbing against each other. The final line must run over the middle sheave, which is aligned with the block's attachment point to ensure the most efficient distribution of the effort.

How to choose

The line type and diameter, and the working load will determine the choice of block.