Jaw Sort Coupling Choice Course of action
The choice system for identifying the right jaw coupling size and elastomer involves employing the charts shown about the following pages. 
You will discover three elements to be selected, two hubs and one particular elastomer. Once the shaft size with the driver and driven of the application are with the same diameter, the hubs chosen might be the identical. When shaft diameters differ, hubs selected will vary accordingly.
Data necessary ahead of a coupling is usually selected:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven products and corresponding keyways
Application description
Environmental circumstances (i.e. severe temperature, corrosive problems, room limitations)
Ways In Selecting A Jaw Coupling
Stage 1: Identify the Nominal Torque of your application through the use of the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Step 2: Utilizing the Application Support Components Chart one pick the support element which greatest corresponds for your application.
Step three: Calculate the Layout Torque of the application by multiplying the Nominal Torque calculated in Phase one by the Application Services Aspect established in Phase two.
Design Torque = Nominal Torque x Application Support Issue
Phase 4: Working with the Spider Functionality Information Chart 2， choose the elastomer materials which very best corresponds to your application.
Phase 5: Working with the Jaw Nominal Rated Torque Chart 3 , find the appropriate elastomer materials column for that elastomer chosen in Phase four.
Scan down this column towards the initially entry exactly where the Torque Value within the proper column is higher than or equal to your Style Torque calculated in Step 3.
After this worth is located, refer for the corresponding coupling dimension within the 1st column in the Jaw Nominal Rated Torque Chart 3 .
Refer to your maximum RPM value for this elastomer torque capability to ensure that the application necessities are met. If your necessity just isn’t pleased at this time, a further type of coupling may be demanded for your application. Please check with Lovejoy engineering for help.
Step six: Review the application driver/driven shaft sizes towards the greatest bore dimension accessible within the coupling picked. If coupling bore size is not really massive enough to the shaft diameter, pick the next greatest coupling that will accommodate the driver/driven shaft diameters.
Phase seven: Making use of the UPC variety selection table , obtain the suitable Bore and Keyway sizes needed and find the number.
