The coupling can be inspected without disassembly. Additionally, the condition of the discs can be checked while the machine is running, using a strobe light
Torsionally rigid without any backlash
No wearing parts, high resistance to harsh environmental conditions
Infinite life if properly aligned
If misalignment is kept within specified limits, these couplings can last as long as the machines on which they are installed
High power density (more torque for a given overall diameter)