Approach
S-Flex Coupling Variety Procedure
The variety approach for figuring out the right S-Flex coupling involves making use of the charts shown around the following pages. There are actually three parts to be chosen, two flanges and one sleeve.
Details necessary prior to a coupling is often chosen:
HP and RPM of Driver or operating torque
Shaft size of Driver and Driven tools and corresponding keyways
Application or tools description
Environmental conditions (i.e. intense temperature, corrosive disorders, space limitations)
Ways In Choosing An S-Flex Coupling
Step one: Identify the Nominal Torque in in-lb of your application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Stage 2: Applying the Application Service Element Chart one choose the service component which ideal corresponds for your application.
Phase three: Determine the Design and style Torque of one’s application by multiplying the Nominal Torque calculated in Stage 1 from the Application Services Issue established in Phase two.
Design Torque = Nominal Torque x Application Services Aspect
Phase four: Employing the Sleeve Performance Information Chart two decide on the sleeve material which ideal corresponds for your application.
Stage 5: Working with the S-Flex Nominal Rated Torque Chart 3 locate the acceptable sleeve material column to the sleeve chosen in Stage 4.
Stage six: Scan down this column on the to start with entry wherever the Torque Value from the column is greater than or equal to the Design Torque calculated in Step three.
Refer to your optimum RPM value from the coupling dimension to make certain that the application specifications are met. If your maximum RPM value is much less than the application necessity, S-Flex couplings are not recommended for the application.
Note:
If Nominal Torque is less than 1/4 on the coupling’s nominalrated torque, misalignment capacities are lowered by 1/2. The moment torque value is found, refer on the corresponding coupling dimension in the first column of your S-Flex Nominal Rated Torque Data Chart three .
Stage 7: Review the application driver/driven shaft sizes to your optimum bore dimension out there around the coupling selected. If coupling max bore is not really large adequate to the shaft diameter, select the next biggest coupling that will accommodate the driver/driven 
shaft diameters.
Stage 8: Employing the Item Assortment tables, locate the ideal Keyway and Bore size demanded and locate the variety.
