Nautos low friction ring: high strength marine grade aluminum 20mm, for 4mm rope.
Suitable for a wide range of applications. They are ideal for slight changes in the direction of the listening. They minimize friction or when high static loads would cause pulley breakage or ball bearing deformation.
| For Bout | Inner diameter | Outer Diameter | Workload | Rupture Charge |
| 4 mm | 08mm | 20mm | 600kg | 1200kg |