The next information and facts ought to be supplied to when placing an buy to make certain the proper choice of the disc coupling:
Application and form of duty
Kind of driver (engine, motor, turbine, and so on.)
Pace and horsepower
Kind of driven
Shaft sizes and separation
Room limitations for major diameter and length
Type of fit (Interference fit default, clearance match and shaft locking gadget planning obtainable on request)
Specific prerequisites (vertical mounting, drop out center, flange mount, electrically insulated, API-610 up to 3,800 RPM, shear pins, balancing, and so forth.)
Angular misalignment, axial misalignment, and rated torque are all associated on the coupling’s capability to accommodate application torque over any time period of time. As illustrated during the following charts, when the application torque increases to 50% of your coupling capability, the capability in the coupling to accommodate angular misalignment to is diminished. The same holds genuine to the ability to accommodate axial misalignment.
Variety Process
1. Select the coupling form.
2. Select the driven machine support component SFA
3. Select the driving machine support factor SFD
Care need to be taken when the driving machine is other than a typical electric motor or turbine. Some engines will impose added fluctuations within the drive program and allowance must be manufactured accordingly. A torsional coupling might be essential for diesel 
drives.
