Sailboat blocks

51 companies | 1295 products
Blocks
  • What’s new?
    Submit
  • Number of sheaves
    Submit
  • Type
    Submit
  • Configuration
    Submit
  • Application domain
    Submit
  • Materials
    Submit
  • Applications
    Submit
  • Maximum line diameter
    Submit
  • Maximum wire rope diameter
    Submit

19mm carbon fibre cheeked ball race blocks

Light weight, high load carrying capacity blocks
Reliable race proven designs
High wear resistant cheek material extends life if miss-lead occurs
Freewheeling...

ingle Ball Race Block with becket,19mm
19mm carbon fibre cheeked ball race blocks

. Light weight, high load carrying capacity blocks
. Reliable race proven designs
. High wear resistant cheek material...

Treble Ball Race Block with shackle,19mm

19mm carbon fibre cheeked ball race blocks

. Light weight, high load carrying capacity blocks
. Reliable race proven designs
. High wear resistant cheek material...

The addition of a triple jammer to the ball race blocks...

25mm Double Block with Shackle

The high strength to weight ratio and simple construction of the "00" range of blocks gives years of trouble free service. Electro- polished 316 stainless...

{{productDetail[21834]}}
{{productDetail[24844]}}

STAINLESS STEEL BLOCKS WITH SINGLE WHEEL AND SWIVEL

Code 1479-25 , Dimensions...

STAINLESS STEEL BLOCKS WITH DOUBLE WHEELS AND SWIVEL

Code 1476-25 , Dimensions...

{{productDetail[23586]}}

Light anodised alloy and stailess steel AISI 316 with derling sheave....

Light anodised alloy and stailess steel AISI 316 with derling sheave....

{{productDetail[23572]}}
{{productDetail[38156]}}

Nylon pulleys with brass support

Specifications

Art. ...

Nylon pulleys with brass support

Specifications

Art. ...

{{productDetail[30300]}}

To complement Sparcrafts mast production, a large range of quality hardware is also available...

{{productDetail[23442]}}

ANDERSEN's polished stainless steel Turning Blocks provide the perfect finishing touch...

{{productDetail[22021]}}

How to choose this product

sailboat-block

A sailboat block consists of one or more sheaves held between two cheeks or chocks. It increases mechanical advantage and can be used to alter the direction of lines running through it.

Applications

These devices have multiple uses on board including mainsail block and tackle, spinnaker sheet guide, barber hauler, hell block, deck block and downhaul tackle, among others.

Technologies

The great majority of cruising sailboat blocks are aluminum or stainless steel. Titanium blocks now can be found on some racing boats, while traditional craft have beautiful wooden blocks. Single, double and even triple blocks are used in block and tackle to increase mechanical advantage, as on a mainsail sheet.

Blocks can be attached via a becket, a swivel, a rotating tower with a jam or cam cleat, a fork, a fabric strop or be screwed to the deck or attached to another fitting. Blocks with narrow metal sheaves are used with cable or wire rope. Sheaves can ride on ball bearings, rollers or a simple friction axle. Ratchet blocks have internal teeth so that the sheave turns in one direction only, making it easier to keep tension on the line.

How to choose

Choice will depend on specific application, line diameter and the possible need for an integrated cleat. Blocks with rollers are generally the most efficient due to reduced friction and increased sturdiness.

Subscribe to our newsletter
Thank you for subscribing
There was a problem with your request
Invalid email address

Receive updates on this section every two weeks.

With NauticExpo you can: Find a nearby distributor | Contact the manufacturer to get an estimate or a price Examine product characteristics and technical specifications | View PDF catalogs and other online documentation