Reactions of other flexible couplings: disc couplings and croset coupling alias rubber block

Reactions and local coupling misalignment vs. torque for disk and croset couplings for an initial radial misalignment

Torques are in  NXm	Disk couplings	Croset or rubber block coupling
Reactions  vs. torque  for radial misalignment	Reactions are small and do not depend on torque. Disk couplings are really flexible.	Reactions are limited and somewhat vary with torque. Croset couplings are semi flexible.
Local coupling misalignment vs. torque	Strong initial radial misalignment: 80/100 mm!

This page is in construction. It basically will tell that disc couplings and croset (rubber block as above) couplings exhibit far lesser reactions than gear couplings. Nevertheless, gear couplings are more compact than other types for a given rating.. When well lubricated, they operate with lesser losses  than other flexible couplings according to Calistrat [Calistrat,M.M.: Flexible couplings Their Design, Selection and Use Caroline Publishing, Houston1994]. Besides, they may exhibit a good flexibility in axial direction. Their major drawback is their important radial reactions when misaligned and transmitting high torques.
Will contact a specialist on this topic?