Tylaska FR12 Low-Friction Ring Ferrule
Tylaska Ring Ferrules are ideal for applications such as barber haulers, spinnaker twings or other uses that have small turning angles and little line movement. They also work great for backstay adjusters when used in a high purchase cascade configuration.
Ferrules start having frictional heating and wear problems when there is significant line movement, so conventional pulleys are still better for applications such as mainsheet and halyard blocks. Tylaska's ferrule offerings from FR3 to FR26 cover an extreme range of working loads and line sizes that no other single manufacturer provides.
- Lighter, smaller than conventional pulley block
- A popular alternative for many applications where traditional blocks once ruled
- Instead of rolling on a pulley sheave, active line slides on inside smooth surface of ring
- Another line is spliced around ferrule for attaching it
- Attachment line is sometimes made as a loop that is luggage tagged onto a padeye or toe rail
- Frictional losses are not as big as one might think, especially when using low friction line such as Dyneema
- In addition to being lighter and less expensive than conventional blocks, ring ferrules are also less prone to failure since there are no pulleys to crack or bearings to foul