Process
S-Flex Coupling Assortment Approach
The assortment method for identifying the right S-Flex coupling necessitates applying the charts shown over the following 
pages. You’ll find 3 elements to be selected, two flanges and one particular sleeve.
Info necessary in advance of a coupling may be chosen:
HP and RPM of Driver or running torque
Shaft size of Driver and Driven products and corresponding keyways
Application or tools description
Environmental conditions (i.e. intense temperature, corrosive ailments, room limitations)
Methods In Picking out An S-Flex Coupling
Phase one: Figure out the Nominal Torque in in-lb of your application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Utilizing the Application Services Factor Chart one pick the services issue which most effective corresponds to your application.
Stage three: Determine the Style and design Torque of the application by multiplying the Nominal Torque calculated in Stage one by the Application Services Component established in Stage 2.
Style Torque = Nominal Torque x Application Service Aspect
Stage 4: Applying the Sleeve Performance Information Chart two decide on the sleeve material which very best corresponds to your application.
Step five: Applying the S-Flex Nominal Rated Torque Chart three locate the appropriate sleeve material column to the sleeve selected in Step 4.
Phase 6: Scan down this column towards the first entry wherever the Torque Value from the column is better than or equal towards the Style and design Torque calculated in Step 3.
Refer to the highest RPM value from the coupling size to make certain that the application prerequisites are met. In the event the greatest RPM worth is much less compared to the application requirement, S-Flex couplings usually are not proposed to the application.
Note:
If Nominal Torque is significantly less than 1/4 from the coupling’s nominalrated torque, misalignment capacities are reduced by 1/2. After torque worth is located, refer on the corresponding coupling dimension in the initially column in the S-Flex Nominal Rated Torque Information Chart three .
Stage seven: Compare the application driver/driven shaft sizes towards the optimum bore dimension accessible around the coupling chosen. If coupling max bore is just not massive sufficient for that shaft diameter, choose the next greatest coupling that can accommodate the driver/driven shaft diameters.
Stage eight: Making use of the Item Variety tables, come across the acceptable Keyway and Bore size expected and locate the number.
