Specifications for Tylaska FR4 - Aluminium Low Friction Ring
| Total width (mm) | 6.4 |
| Recommended line - Max Ø (mm) | 4 |
| Inside Ø (mm) | 6.4 |
| Outside Ø (mm) | 15.7 |
| Outside line max Ø (mm) | 4 |
| SWL (kg) | 275 |
| NBL (kg) | 550 |
| A (mm) | 6.4 |
| B (mm) | 4.4 |
| C (mm) | 15.7 |
| D (mm) | 6.4 |
| E (mm) | 3.1 |
| Weight (g) | 2 |
Tylaska Ring Ferrules are lighter and smaller than a conventional pulley block and have become a popular alternative for many applications where traditional blocks once ruled. Instead of rolling on a pulley sheave, the active line with a ferrule merely slides on the inside smooth surface of the ring. Another line is spliced around the ferrule for attaching it. 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. Ferrules are ideal for applications such as barber haulers, spinnaker twings or other uses that have small turning angles and little line movement.
Specifications
| Total width (mm) | 6.4 |
| Recommended line - Max Ø (mm) | 4 |
| Inside Ø (mm) | 6.4 |
| Outside Ø (mm) | 15.7 |
| Outside line max Ø (mm) | 4 |
| SWL (kg) | 275 |
| NBL (kg) | 550 |
| A (mm) | 6.4 |
| B (mm) | 4.4 |
| C (mm) | 15.7 |
| D (mm) | 6.4 |
| E (mm) | 3.1 |
| Weight (g) | 2 |
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