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

Working load: 250 kg
Breaking load: 500 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 ...

roller bearing block / double / lashing / max. rope ø 8 mm
roller bearing block
KBO2

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 ...

roller bearing block / double / lashing / max. rope ø 8 mm
roller bearing block
KBO4

Working load: 650 kg
Breaking load: 1,300 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 ...

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

Working load: 950 kg
Breaking load: 1,900 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 ...

roller bearing block / double / lashing / max. rope ø 12 mm
roller bearing block
KBO8

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 ...

roller bearing block / double / with fixed head / max. rope ø 10 mm
roller bearing block
93205

Working load: 320 kg
Breaking load: 900 kg

... hard anodised aluminium Forged shackle (316L) Delrin rollers Linked products Fastening systems for roller blocks: fixed head, swivel fork, snap shackle, webbing

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Wichard
roller bearing block / double / with swivel / max. rope ø 10 mm
roller bearing block
94205

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 / double / with swivel / with becket
roller bearing block
94206

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 / double / with swivel / max. rope ø 12 mm
roller bearing block
95205

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
roller bearing block / double / with swivel / with becket
roller bearing block
95206

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 / double / 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: double

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

... 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: doubleBecket

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Seldén Mast AB
cam cleat block / flat / cheek / plain bearing
cam cleat block
PBB 60

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

Specifications Weight: 404.00 g Breaking load: 2200 kg Safe working load: 1100 kg System: PBB60 Max line size: 14 mm Upper breaking load: 11.00 kN Upper safe working load: 5.50 kN Mounting: 3xM6

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

Working load: 2,000 kg
Breaking load: 4,000 kg

... 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: doubleBecket

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Seldén Mast AB
flat block / cheek / double / with fork
flat block
PBB80

Working load: 2,000 kg
Breaking load: 4,000 kg

Specifications Weight: 628.00 g Breaking Load: 4000 kg Safe working Load: 2000 kg System: PBB80 Max line size: 16 mm Upper breaking load: 20.00 kN Upper safe working load: 10.00 kN Mounting: 3xM8

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Seldén Mast AB
plain bearing block / ball bearing / double / with swivel
plain bearing block
HTX

Working load: 800, 3,500, 1,100, 2,000 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 / double
fiddle block
Racing

Working load: 1,440, 1,800 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
plain bearing block / double / with swivel / with shackle
plain bearing block
Synchro

Working load: 800, 450 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 / double / with shackle / max. rope ø 10 mm
ball bearing block
Control

Working load: 480, 300 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
ball bearing block / double / with becket / with shackle
ball bearing block
Control

Working load: 480, 300 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
plain bearing block / mast foot / double / max. rope ø 18 mm
plain bearing block
B309082

Working load: 2,980 kg
Breaking load: 4,200 kg

Foot block with double sheaves, spherical plain bearings and silver anodized aluminum sides. *The upper block has half the Safe working load and Breaking load.

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Rutgerson
plain bearing block / mast foot / double / max. rope ø 14 mm
plain bearing block
B300062

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

Grey double Foot Block with Composite sides and sheves. This model have been discontinued and we will only sell them as long as stock lasts.

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Rutgerson
plain bearing block / double / with swivel / max. rope ø 8 mm
plain bearing block
B300371B

Working load: 450 kg
Breaking load: 850 kg

Double block with spherical plain bearing and composite sides and sheaves

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Rutgerson
plain bearing block / double / with swivel / max. rope ø 12 mm
plain bearing block
B300571B

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

Double block with spherical plain bearing and composite sides and sheaves

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Rutgerson
plain bearing block / double / with swivel / max. rope ø 14 mm
plain bearing block
B300671B

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

Double block with spherical plain bearing and composite sides and sheaves

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Rutgerson
ball bearing block / double / with swivel / max. rope ø 8 mm
ball bearing block
YC40D

Working load: 500 kg
Breaking load: 1,000 kg

sheave: 40mmshackle: 5mmmax Ø line: 8mmbl: 1000Kgmwl: 500glenght: 72mmweight: 100gDescription: double/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / double / with shackle / max. rope ø 10 mm
ball bearing block
YC50DA

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

sheave: 50mm shackle: 6mm max Ø line: 10mm bl: 1500Kg mwl: 750g lenght: 118mm weight: 192g Description: double/becket/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / double / with swivel / max. rope ø 10 mm
ball bearing block
YC50D

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

sheave: 50mm shackle: 6mm max Ø line: 10mm bl: 1500Kg mwl: 750g lenght: 95mm weight: 170g Description: double/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / double / with swivel / max. rope ø 14 mm
ball bearing block
YC60D

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: 275g Description: double/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
ball bearing block / double / with swivel / with becket
ball bearing block
YC60DA

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: 300g Description: double/becket/aluminum/delrin/ball bearing/shackle

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UBI MAIOR ITALIA
double block / with swivel / for sailboats
double block
8390

Working load: 500, 300 kg

swivel block / double / with swivel / for sailboats
swivel block
GS315

Description: Swivel Block With Double Wheel Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished)

swivel block / double / with swivel / for sailboats
swivel block
GS3151

Description: Swivel Double Sheave Block With Bridge Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished)

ball bearing block / double / max. rope ø 5 mm / for sailboats
ball bearing block
RF15202

Working load: 240 kg
Breaking load: 700 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 / double / with becket / max. rope ø 5 mm
ball bearing block
RF15212

Working load: 240 kg
Breaking load: 700 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 / double / with fixed head / max. rope ø 5 mm
ball bearing block
406

Working load: 204 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 / double / with fixed head / with becket
ball bearing block
407

Working load: 204 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 / double / with fixed head / max. rope ø 6 mm
roller bearing block
HT 92524

Working load: 220 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 / double / with swivel / with becket
roller bearing block
HT 92525

Working load: 240 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 / double / with fixed head / max. rope ø 8 mm
ball bearing block
2101

Working load: 550 kg
Breaking load: 980 kg

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BlueShark Yacht Co., Ltd.
ball bearing block / double / with becket / with fixed head
ball bearing block
2104

Working load: 550 kg
Breaking load: 980 kg

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BlueShark Yacht Co., Ltd.
plain bearing block / double / with becket / with fixed head
plain bearing block
3506901055

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
plain bearing block / double / with fixed head / max. rope ø 6 mm
plain bearing block
3506701055

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
plain bearing block / double / with fixed head / max. rope ø 6 mm
plain bearing block
R1570

Description:Block Micro Double Category:Blocks Subcategory:17 Block Series Series:Stainless Block Type:Double Bearing Type:Plain Weight ...

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RWO
built-in block / double / with fork / max. rope ø 6 mm
built-in block
R1640

Description:Block Micro Double Box Category:Blocks Subcategory:17 Block Series Series:Stainless Block Type:Double Bearing Type:Plain Weight ...

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RWO
plain bearing block / double / with shackle / max. rope ø 8 mm
plain bearing block
02-23

Working load: 410 kg

Double block with plain bearing sheaves works well where "static" sheave loads are occurring. Smooth rolling delrin(tm) sheaves ensure smooth operation. Sheave Dia. 1 1/16" (27mm), Thickness 1 1/8" ...

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Schaefer
plain bearing block / double / with becket / with shackle
plain bearing block
02-33

Double Block with Front Side Shackle and Becket. Use with either 02-23 or 02-24 for a strong 4:1 purchase. Length = 4 5/32" (106mm), Width = 1 3/16" (30mm), Thickness 1 1/8" (28mm), Weight = 3 oz. (85g)

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Schaefer
plain bearing block / double / max. rope ø 10 mm / max. wire rope ø 10 mm
plain bearing block
MR1001-0225

Double Sheave Swivel Eye Block / Stainless Steel AISI316

plain bearing block / double / with swivel / max. rope ø 10 mm
plain bearing block
MR1007-0225

Swivel Pulley Block Double Sheave / Stainless Steel AISI304 / AISI316

plain bearing block / double / with swivel / for sailboats
plain bearing block
S315A

plain bearing block / double / with swivel / with becket
plain bearing block
S315A-B

plain bearing block / double / with swivel / for ships
plain bearing block
B2

Working load: 4 t

B2 is a standard double sheaved lifting block where the block housing is casted. SWL: 4 tons Wire Diameter: 10 – ...

plain bearing block / double / for ships
plain bearing block
F2

Working load: 12 t - 50 t

F2 is our standard double sheaved block made ​​of plates which continues from the B1 series. SWL: 12 – 50 tons Wire Diameter: 14 – ...

ball bearing block / double / with becket / for sailboats
ball bearing block
HT 2023

... 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 , IS KIND TO ROPE END SUPER ...

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Nautos
cam cleat block / double / with becket / with fixed head
cam cleat block
92427

Working load: 550 lb
Breaking load: 2,000 lb

Description CONVENTIONAL BALL BEARING DESIGN WITH LONG LASTING CHARACTERISTICS. OPTIONAL ALUMINUM SHEAVE ON ROLLER BEARINGS FOR HIGHER LOADS. WORKING LOAD 550 LBS BREAKING LOAD 2000 LBS WEIGHT 4 OZ. MAX LINE 5/16″

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Nautos
ball bearing block / double / with becket / with shackle
ball bearing block
19.84

Working load: 475 kg
Breaking load: 1,000 kg

Double Ball Race Block shackle & becket Breaking Load:1000kg Safe work load:475kg

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Sea Sure
plain bearing block / double / with swivel / for sailboats
plain bearing block
00.20

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Sea Sure

How to choose this product

double-block

A double block contains two sheaves. It is very widely employed because it can be used to create four- or five-line tackle, considerably increasing mechanical advantage.

Applications

Combined with a becket block, these devices can be used to make efficient five-line tackle.

Technologies

The axis of effort will be determined, in part, by the block's attachment method. Careful mounting will avoid overly large angles. Usually equipped with a ring, the block must be attached with a shackle. This should be chosen carefully to ensure that the tackle is oriented to reduce friction to a minimum.

How to choose

The diameter of the lines and the working loads will be the main elements to consider.

Advantages

- Multiples purchase by four or five

Disadvantages

- Requires a becket for maximum efficiency