What category of coupling provides higher torsional speeds for the system?

What category of coupling won't present premature failure by overloads produced by a lack of colinear alignment between the mating shafts?

Choose the rigid coupling that provides means for dynamic balancing?

What component is missing???

What failure mode is produced in a rigid coupling by having significant misalignment?

What does misalignment produces in a rigid coupling?

Choose the flexible coupling that allows larger angular misalignment?

Choose the flexible coupling where misalignments are accommodated by metallic flexure elements?

In a single universal joint what part is sometimes called spider?