Method
S-Flex Coupling Selection Approach
The choice process for figuring out the right S-Flex coupling demands utilizing the charts shown to the following pages. You will find 3 
parts to become picked, two flanges and one sleeve.
Information and facts necessary just before a coupling may be selected:
HP and RPM of Driver or running torque
Shaft size of Driver and Driven gear and corresponding keyways
Application or products description
Environmental circumstances (i.e. excessive temperature, corrosive disorders, room limitations)
Steps In Selecting An S-Flex Coupling
Stage one: Ascertain the Nominal Torque in in-lb of your application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Step two: Applying the Application Service Issue Chart 1 decide on the support aspect which ideal corresponds for your application.
Stage three: Calculate the Design Torque of one’s application by multiplying the Nominal Torque calculated in Phase 1 by the Application Services Element established in Stage two.
Style Torque = Nominal Torque x Application Service Issue
Stage 4: Applying the Sleeve Overall performance Data Chart two decide on the sleeve material which ideal corresponds to your application.
Step five: Using the S-Flex Nominal Rated Torque Chart 3 find the suitable sleeve materials column for your sleeve chosen in Phase 4.
Stage 6: Scan down this column to your initially entry where the Torque Worth in the column is better than or equal to your Design Torque calculated in Stage three.
Refer to the greatest RPM value on the coupling size to guarantee that the application demands are met. If the maximum RPM value is less compared to the application necessity, S-Flex couplings are usually not proposed for that application.
Note:
If Nominal Torque is much less than 1/4 on the coupling’s nominalrated torque, misalignment capacities are lowered by 1/2. As soon as torque value is located, refer on the corresponding coupling dimension during the initially column from the S-Flex Nominal Rated Torque Information Chart 3 .
Step seven: Assess the application driver/driven shaft sizes to the highest bore dimension available over the coupling chosen. If coupling max bore is not really huge sufficient for that shaft diameter, select the following greatest coupling which will accommodate the driver/driven shaft diameters.
Phase 8: Working with the Item Selection tables, come across the ideal Keyway and Bore dimension required and find the number.
