It is a metal disk type coupling with high torsional
rigidity. It is rigid in the torsional direction, and is flexible in
the bending, asymmetrical and axial directions.
The plate spring is made by a latest finite element
analysis method to achieve an idealized shape. When connecting two shafts,
to perform a complete centering is very difficult work.
It is also difficult to maintain the condition
due to a deflection of shaft caused by machine operation, thermal expansion
of shaft, bearing block strain after a long-term use or bearing wear.
However, theses problems can be solved by choosing the appropriate flexible
coupling in accordance with the intended use.
As well as general-purpose motors, a wide range
of products corresponding from servo motors for ultraprecision controls
to engines that generate a large vibration and impact are available.