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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
Karver Systems
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
Karver Systems
Weight - 0.096 kg Boat size - 10 to 110 ft Workload - 1,00 T Breaking load - 2,00 T
Karver Systems
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 ...
Ronstan
Working load: 70 kg
Breaking load: 140 kg
Weight: 7 g
SINGLE STRAP 402-001-01 Purchase: 2 Mounting: 90
Seldén Mast AB
Working load: 70 kg
Breaking load: 140 kg
SINGLE COMPOSITE 401-001-01 Purchase: 2 Comment:
Seldén Mast AB
Working load: 100 kg
Breaking load: 200 kg
Weight: 10 g
SINGLE BRASS 401-001-02 Purchase: 2 Comment :
Seldén Mast AB
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 ...
Spinlock
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 ...
Lewmar
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 ...
Lewmar
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 ...
Lewmar
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 ...
Harken
Working load: 500 kg
Breaking load: 2,000 kg
The sheave assemblies are made from anodized aluminium. Sheaves are fitted with a ball bearing system.
Working load: 380 kg - 2,000 kg
– These blocks are made of a material GVX, designed from high resistance fiberglass.- Hooked with a toggle, an articulated toggle, or a shackle
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
Rutgerson
Working load: 700 kg
Breaking load: 1,250 kg
Weight: 115 g
Single block with spherical plain bearing and composite sides and sheave
Rutgerson
Working load: 1,150 kg
Breaking load: 2,100 kg
Weight: 205 g
Single block with spherical plain bearing and composite sides and sheave
Rutgerson
Ball bearing 57mm ratchet Optimist mainsheet block. Most economic ratchet block available.
Optiparts - Windesign
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 Steel D shackle ...
Schaefer
Working load: 450 kg
Breaking load: 900 kg
Block for Barberhaul Art. 8773 Subject to errors and changes
BSI A/S
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 ...
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 ...
Swivel Double Sheave Block With Bridge Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished) Swivel Double Sheave Block With Bridge are compact and lightweight multi-purpose ...
Swivel Single Sheave Block With Bridge Material: SS304/SS316 Size:25mm/32mm/50mm Surface Treatment:"EP" (Electro Polished) Swivel Single Sheave Block With Bridge are compact and lightweight multi-purpose ...
Center diameter: 20, 25, 28, 30 mm
Stanchion block.For stanchion diam. 20 mm to 25 mm Ball bearing sheave diam. 30 mm
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 ...
ASANO GLOBAL CO. LTD.
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 ...
ASANO GLOBAL CO. LTD.
Enough width of the sheave allows ropes and knotting to pass through. The bearings inside the sheave facilitate smooth rotation. The edges of the sheave are designed to fit into the main body to prevent ropes from getting tangled. Improved ...
ASANO GLOBAL CO. LTD.
Articulated pulley which will facilitate the tension of the sail attached to the adjustment ring
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 ...
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
UBI MAIOR ITALIA
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 ...
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 ...
Working load: 3,500 kg
Weight: 438 g
Looper series, single block, sheave Ø100, SWL 3500 kg, with snap-loop
Antal
Working load: 480 kg
Breaking load: 900 kg
Thickness: 42 mm
... removed for maintenance Applications For dinghies and catamarans applications: genoa sheets, boom vang, footmast block, masthead block… For larger yachts: barber-hauler, cunnigham, various, control ...
Wichard
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
Holt
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. ...
Your suggestions for improvement:
A block comprises a sheave, or wheel held between two cheeks and a fitting to attach the unit to a fixed point. Its use multiplies mechanical advantage and reduces wear on the lines that run through it.
ApplicationsBlocks are used to make up block and tackle to increase purchase, as well as for halyard, sheet and other leads. Thus, they are typically found on sailboats, but may be used on any type of boat or ship, even if only for hoisting a flag or for davit operation.
TechnologiesBlock sheaves can be single, double, triple or even more. Most are of aluminum, stainless steel or titanium, though wood is often used on traditional sailboats. Cable blocks usually have a metal sheave. In friction blocks, the sheave is in direct contact with the axle, while other types have ball bearings or rollers.
Ratchet blocks have internal springs and a toothed mechanism to keep tension on the line between two pulls. They are most common in dinghy sailing. Block anchoring is via a shackle, a swivel or snap shackle, a fork or another system, which will depend on the rotational or torsional freedom of movement required.
Roller models are probably the most efficient, combining the friction reduction of ball bearings and the superior sturdiness of the roller. Each block's rated operational and breaking load must be respected, as well as the maximum line diameter it can handle.
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