The next information should be provided to when placing an purchase to guarantee the right choice of the disc coupling:
Application and type of duty
Type of driver (engine, motor, turbine, and so on.)
Speed and horsepower
Type of driven
Shaft sizes and separation
Area limitations for key diameter and length
Style of fit (Interference match default, clearance match and shaft locking device planning offered upon request)
Exclusive requirements (vertical mounting, drop out center, flange mount, electrically insulated, API-610 as much as three,800 RPM, shear pins, balancing, and so on.)
Angular misalignment, axial misalignment, and rated torque are all linked to the coupling’s capacity to accommodate application torque more than any period of time. As illustrated from the following charts, when the application torque increases to 50% with the coupling capability, the capacity with the coupling to accommodate angular misalignment to is reduced. Exactly the same holds real for your capability to accommodate axial misalignment.
Selection Procedure
one. Select the coupling variety.
2. Select the driven machine services issue SFA
three. Select the driving machine support aspect SFD
Care needs to be taken when the driving machine is apart from a common electrical motor or turbine. Some engines will impose extra fluctuations around the drive procedure and allowance should be 
made accordingly. A torsional coupling could be necessary for diesel drives.