Editing Coupling (section)

=== Highly flexible ===
[[File:Highly flexible coupling installed on board.jpg|alt=Highly flexible coupling installed on board|thumb|Highly flexible coupling]]
Highly flexible couplings are installed when resonance or torsional vibration might be an issue, since they are designed to eliminate torsional vibration problems and to balance out shock impacts.

They are used in installations where the systems require a high level of torsional flexibility and misalignment capacity. This type of coupling provides an effective damping of torsional vibrations, and high displacement capacity, which protects the drive. The design of the highly flexible elastic couplings makes assembly easier. These couplings also compensate shaft displacements (radial, axial and angular) and the torque is transmitted in shear.<ref>{{Cite web|title=RATO S|url=https://www.vulkan.com/en-us/drivetech/products/highly-flexible-couplings/rato-s|access-date=2021-04-05|website=www.vulkan.com|language=en|archive-date=2022-06-28|archive-url=https://web.archive.org/web/20220628211935/https://www.vulkan.com/en-us/drivetech/products/highly-flexible-couplings/rato-s|url-status=dead}}</ref> Depending on the size and stiffness of the coupling, the flexible part may be single- or multi-row.<ref>{{Cite web|title=Transmitting solutions for tougher applications|url=https://www.rivieramm.com/news-content-hub/news-content-hub/transmitting-solutions-for-tougher-applications-46934|access-date=2021-04-20|website=Riviera|language=En}}</ref>