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Working load: 230 kg
Breaking load: 680 kg
Weight: 45 g
... and stop each other. The result is the most efficient small boat block Harken has ever made. Zircon blocks are available in 40- and 57-mm sheaves in single and double blocks, ...
Harken
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 ...
Lewmar
Working load: 1,800, 1,440 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 ...
Lewmar
Working load: 800, 1,100, 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 ...
Lewmar
Working load: 650 kg
Breaking load: 1,300 kg
Weight: 228 g
PLAIN BEARING BLOCK DOUBLE 405-001-05 Purchase: 4 Pin diam: 5 mm
Seldén Mast AB
Working load: 1,000 kg
Breaking load: 2,000 kg
Weight: 378 g
PLAIN BEARING BLOCK DOUBLE BECKET 406-001-06 Comment: Becket can be opened
Seldén Mast AB
Working load: 1,000 kg
Breaking load: 2,000 kg
Weight: 380 g
PLAIN BEARING BLOCK Comment: Screw Length= 3x MFT M6, L=53
Seldén Mast AB
Working load: 250 kg
Breaking load: 500 kg
Thickness: 23 mm
... KBO50 = flanges in aluminum K TIPS – If you want to use a KBO block as a replacement for a competing block, check the working load of the block you are replacing. – Our blocks ...
Karver Systems
Working load: 350 kg
Breaking load: 700 kg
Thickness: 34 mm
... KBO50 = flanges in aluminum K TIPS – If you want to use a KBO block as a replacement for a competing block, check the working load of the block you are replacing. – Our blocks ...
Karver Systems
Working load: 650 kg
Breaking load: 1,300 kg
Thickness: 34 mm
KBO4 double block with textile shackle The KBO is our range of versatile blocks. All models are fixed with textile shackles (supplied except KBO50). The KBO is available in single, double ...
Karver Systems
Working load: 1,600 kg
Breaking load: 4,000 kg
Thickness: 57 mm
Complete range of blocks for yachts and mega yachts High working and breaking loads Excellent high-speed low load and high-function load characteristics Alloy sheaves design to suit modern ropes Protection of the ...
Working load: 240 kg
Breaking load: 700 kg
Weight: 23 g
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 an ...
Working load: 200, 400 kg
Breaking load: 600, 650 kg
Weight: 98 g
... Cheeks: Glass filled nylon Axle: Aluminium Dyn Axle: 316 Stainless Line size:5 -12vmm USAGE 40MM RANGE Sheet Blocks Foot Blocks / Leads Backstay systems
Holt
Working load: 450 kg
Breaking load: 850 kg
Weight: 91 g
Double block with spherical plain bearing and composite sides and sheaves
Rutgerson
Working load: 700 kg
Breaking load: 1,250 kg
Weight: 226 g
Double block with spherical plain bearing and composite sides and sheaves
Rutgerson
Working load: 1,150 kg
Breaking load: 2,100 kg
Weight: 350 g
Double block with spherical plain bearing and composite sides and sheaves
Rutgerson
A becket unique to this model is used. This has been designed for safety and is stronger than beckets used for existing models. The design of the sheave pin socket has been widened to improve the strength of the main body. The bearings ...
Working load: 300 kg
... pin: SUS316 *Working load limit does not apply to the becket. *Safety working load is set variously in each country. Our blocks safety working load is decided around from 1/8 to 1/10 of their breaking load. *AK1625(Size ...
Working load: 200, 300 kg
Fixed Pulley Type TR Vertical Double Sheave PAT. *Materials: SCS13 (equivalent to SUS304) Sheave pin: SUS304 *TR-B contains bearings.
Working load: 1,300, 1,800 kg
Breaking load: 2,600, 3,600 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 ...
OH MARINE EQUIPMENT
Swivel Double Sheave Block With Bridge Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished)
Breaking load: 1,940, 690, 1,160 kg
"00" Double Block with Becket SKU: 00.23 25mm Double Block with Becket Category: 25mm blocks RRP: £16.74
Working load: 600 kg
Breaking load: 900 kg
Center diameter: 5 mm
... body features “ears” at the top of the block. These are to be used when attaching the block and stop the block from capsizing when under load. Sheave – The stainless-steel sheave allows ...
Allen Brothers
Working load: 600 kg
Breaking load: 900 kg
Center diameter: 5 mm
... features “ears” at the top of the block. These are to be used when attaching the block and stop the block from capsizing when under load. Sheave – The stainless-steel sheave allows ...
Allen Brothers
Working load: 200 kg
Breaking load: 500 kg
Articulating double block. This block is very similar to the standard double (A2022) except the central rivet and spacing mouldings have been removed. The blocks ...
Allen Brothers
Versatile Micro XS cheek block for 6 mm rope, which is characterised by its particularly low weight. The cage and bearing shells are made of robust stainless steel, the cover plates are made of black, UV-resistant ...
SPRENGER
Functional upright block for 8 mm rope, with four boreholes for secure mounting on board. The pulley has a smooth running ball bearing. Further advantages at a glance: pulley made of UV-resistant, glass-fibre reinforced ...
SPRENGER
Working load: 175 kg
Breaking load: 700 kg
Plain bearing block for 6 mm rope with stainless steel side parts. The hook can be dismantled - all you have to do is remove the bolt with the split ring. Further advantages at a glance: pulleys made of UV-resistant, ...
SPRENGER
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)
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″
Working load: 300 lb
Breaking load: 1,850 lb
Description CONVENTIONAL BALL BEARING DESIGN WITH LONG LASTING CHARACTERISTICS. OPTIONAL WITH ALUMINUM SHEAVE ON ROLLER BEARINGS FOR HIGHER LOADS. WORKING LOAD 300 LBS BREAKING LOAD 1850 LBS LINE UP TO 10 MM / 3/8″ SHEAVE DIAMETER ...
Hvalpsund Net offers a wide range of miscellanious, high quality steel goods. Take a look at our products:
Breaking load: 225 kg
Weight: 15 g
Series 17 double block with loop top and 17mm Acetal sheave and stainless steel sided plates for general purpose use.Ideal for small marine and industrial rope applications
RWO
Working load: 730 kg
Breaking load: 1,300 kg
Weight: 160 g
» Aluminum material with high strength, delicacy appearance, longer block life » Preservative treatment » Delrins balls » Stainless steel accessories. Use for: Sheets Main/jib sheets Control lines Stainless ...
Blue Shark Marine Ltd.
MAME BLOCK, DOUBLE WHEELS, WITH RING WELDED, STAINLESS 304, STAINLESS SHEAVE WITH BRASS BUSHING.
Working load: 160 kg - 540 kg
Our wooden blocks are specifically designed for traditional boats. Its are commonly called "Havraise blocks". Its are ash, copper riveted. The sheave is Céloron, the handle and shaft are in stainless ...
Esprit Yachting
SB woodenblocks
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.
ApplicationsCombined with a becket block, these devices can be used to make efficient five-line tackle.
TechnologiesThe 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 chooseThe diameter of the lines and the working loads will be the main elements to consider.
- Multiples purchase by four or five
- Requires a becket for maximum efficiency
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