A COUPLING is used when two shafts need to be connected.
Depending on the requirement, RIGID couplings, ELASTIC or FLEXIBLE couplings may be used.
RIGID couplings are used to join shafts so that they operate as a single unit, aligning the two shafts precisely.
ELASTIC couplings allow irregularities in rotation, shocks and binary peaks to be absorbed or mitigated, absorbing vibrations, compensating for small shaft misalignments and, in some models, they can work as a fuse to avoid damage in case one of the shafts gets blocked.
FLEXIBLE couplings allow the axial interplay of the shafts.