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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
roller bearing block / triple / lashing / max. rope ø 10 mm
roller bearing block
KBO6

Working load: 1,300 kg
Breaking load: 2,600 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 12 mm
roller bearing block
KBO8

Working load: 1,800 kg
Breaking load: 3,600 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 / 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
cam cleat block / triple / with swivel / with becket
cam cleat block
94308

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 / for sailboats
roller bearing block
95305

Working load: 600 kg
Breaking load: 1,500 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 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
cam cleat block / plain bearing / triple / with cleat
cam cleat block
PBB 60

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

... Safe working load: 600 kg Breaking load: 1200 kg Max line size: 12 mm Pin diam: 6 mm Shackle diam: 6 mm System: PBB60 Block type: tripleCam

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Seldén Mast AB
plain bearing block / triple / with swivel / with becket
plain bearing block
PBB 80

... working load: 2000 kg Breaking load: 4000 kg Max line size: 16 mm Pin diam: 10 mm Shackle diam: 8 mm System: PBB80 Block type: TripleBecket

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Seldén Mast AB
plain bearing block / triple / with swivel / with shackle
plain bearing block
HTX

Working load: 2,000, 1,100, 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
ball bearing block / triple / with swivel / with shackle
ball bearing block
Racing

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 / triple / with swivel / with shackle
plain bearing block
Synchro

Working load: 450, 2,000, 800, 1,100 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
ball bearing block / triple / with shackle / max. rope ø 10 mm
ball bearing block
Control

Working load: 720, 500 kg

Ideal for use with hand-held loads, Lewmar’s Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls provide a weight advantage, ...

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Lewmar
cam cleat block / ratchet / triple / with becket
cam cleat block
Control

Working load: 1,000 kg

Product Description Ideal for use with hand-held loads, Lewmar’s Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls ...

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Lewmar
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
plain bearing block / triple / with swivel / with becket
plain bearing block
B300382B

Working load: 450 kg
Breaking load: 850 kg

... Rutgerson block assortment is unique in its design and functionallity. The entire production chain takes place at our premises in Marstrand. In-house sailing experience together with advanced engineering ensures that ...

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Rutgerson
plain bearing block / triple / with swivel / with becket
plain bearing block
B300582B

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

... Rutgerson block assortment is unique in its design and functionallity. The entire production chain takes place at our premises in Marstrand. In-house sailing experience together with advanced engineering ensures that ...

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Rutgerson
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 swivel / with becket
ball bearing block
YC50TAL

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

sheave: 50mm shackle: 6mm max Ø line: 10mm bl: 1500Kg mwl: 750g lenght: 118mm weight: 249g Description: triple/becket/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / triple / with swivel / with becket
ball bearing block
YC50TAC

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

sheave: 50mm shackle: 6mm max Ø line: 10mm bl: 1500Kg mwl: 750g lenght: 118mm weight: 249g Description: triple/becket/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / triple / with swivel / max. rope ø 14 mm
ball bearing block
YC60T

Working load: 1,250 kg
Breaking load: 2,500 kg

sheave: 60mm shackle: 8mm max Ø line: 12mm bl: 2500Kg mwl: 1250g lenght: 112mm weight: 375g Description: triple/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / triple / with swivel / with becket
ball bearing block
YC60TAL

Working load: 1,250 kg
Breaking load: 2,500 kg

sheave: 60mm shackle: 8mm max Ø line: 12mm bl: 2500Kg mwl: 1250g lenght: 140mm weight: 405g Description: triple/becket/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / triple / max. rope ø 5 mm / for sailboats
ball bearing block
RF15302

Working load: 360 kg
Breaking load: 850 kg

FEATURESSmallest and lightest ball bearing block availablePrecision moulded acetal sheave running on stainless steel ball bearings provide high performance & low frictionSingle loop head blocks include ...

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Ronstan
ball bearing block / triple / with becket / max. rope ø 5 mm
ball bearing block
RF15312

Working load: 360 kg
Breaking load: 850 kg

FEATURES Smallest and lightest ball bearing block available Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include ...

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Ronstan
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
ball bearing block / triple / with fixed head / with becket
ball bearing block
409

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
roller bearing block / triple / with swivel / max. rope ø 6 mm
roller bearing block
HT 92534

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
roller bearing block / triple / with swivel / with becket
roller bearing block
HT 92535

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 8 mm
ball bearing block
2102

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

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BlueShark Yacht Co., Ltd.
ball bearing block / triple / with becket / with fixed head
ball bearing block
2105

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

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BlueShark Yacht Co., Ltd.
plain bearing block / triple / with fixed head / max. rope ø 6 mm
plain bearing block
3507001055

Working load: 175 kg
Breaking load: 700 kg

Advantages: sliding bearing strongly loadable cheek parts stainless steel wobble riveting: avoids sharp burrs at the rivet head sheaves 25 x 9,2 mm of high quality UV-resistant plastic easy fixing of bows and swivels by means of bolts and ...

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SPRENGER
plain bearing block / triple / with becket / with fixed head
plain bearing block
3507101055

Working load: 175 kg
Breaking load: 700 kg

Your advantages: sliding bearing strongly loadable cheek parts stainless steel wobble riveting: avoids sharp burrs at the rivet head sheaves 25 x9,2 mm of high quakity UV-resistant plastic easy fixing of bows and swivels by means of bolts ...

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SPRENGER
cam cleat block / triple / with swivel / with cleat
cam cleat block
R5113

Description:19 Mx Triple & Cam Block Category:Blocks Subcategory:19 Block Series Series:Macro Block Type:Cleat Block Bearing Type:Ball Weight ...

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RWO
cam cleat block / triple / with swivel / with becket
cam cleat block
R5114

Code: R5114 Description:19 Mx Triple & Bkt & Cam Category:Blocks Subcategory:19 Block Series Series:Macro Block Type:Cleat Block Bearing Type:Ball Weight ...

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RWO
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 ...

plain bearing block / triple / with fixed head / for sailboats
plain bearing block
S0308

cam cleat block / triple / with fixed head / with becket
cam cleat block
HT 2027

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 ARTICULATION ...

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

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 ARTICULATION ...

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Nautos
ball bearing block / triple / with fixed head / for sailboats
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 / for sailboats
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

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

Breaking load: 650 kg

... rows of .316 stainless steel ball bearings all held together with a meticulously designed .316 stainless steel jacket, our blocks are the strongest and best available on the market.

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Allen Brothers
ball bearing block / triple / with becket / max. rope ø 6 mm
ball bearing block
A2025

Breaking load: 650 kg

... rows of .316 stainless steel ball bearings all held together with a meticulously designed .316 stainless steel jacket, our blocks are the strongest and best available on the market.

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Allen Brothers
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 becket / for sailing dinghies
ball bearing block
SB-1606F

Working load: 120 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
plain bearing block / triple / with becket / for sailboats
plain bearing block
S210-E3

Field of application Heavy blocks are designed for heavy duty jobs. Choose between single, double or triple sheave.

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

Working load: 300 kg - 1,000 kg

plain bearing block / triple / with becket / for classic sailboats
plain bearing block
EYTRXX Series

Working load: 300 kg - 1,000 kg

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.