February 22, 2021

Course of action
S-Flex Coupling Choice Procedure
The selection method for determining the proper S-Flex coupling needs employing the charts shown around the following pages. There are actually 3 components for being picked, two flanges and one sleeve.
Information and facts essential in advance of a coupling is usually chosen:
HP and RPM of Driver or running torque
Shaft size of Driver and Driven equipment and corresponding keyways
Application or gear description
Environmental situations (i.e. excessive temperature, corrosive circumstances, room limitations)
Techniques In Deciding on An S-Flex Coupling
Phase 1: Figure out the Nominal Torque in in-lb of the application through the use of the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Using the Application Services Component Chart 1 pick the service component which finest corresponds to your application.
Stage 3: Calculate the Design and style Torque of your application by multiplying the Nominal Torque calculated in Step 1 through the Application Service Factor determined in Stage two.
Style Torque = Nominal Torque x Application Support Factor
Phase four: Making use of the Sleeve Overall performance Information Chart 2 choose the sleeve materials which most effective corresponds to your application.
Stage 5: Using the S-Flex Nominal Rated Torque Chart three find the ideal sleeve materials column for the sleeve chosen in Step 4.
Phase 6: Scan down this column for the very first entry the place the Torque Worth in the column is higher than or equal to the Style and design Torque calculated in Phase 3.
Refer towards the highest RPM value with the coupling dimension to make certain that the application prerequisites are met. Should the highest RPM worth is less than the application requirement, S-Flex couplings will not be encouraged for that application.
If Nominal Torque is significantly less than 1/4 of your coupling’s nominalrated torque, misalignment capacities are decreased by 1/2. When torque worth is located, refer for the corresponding coupling size from the initially column of your S-Flex Nominal Rated Torque Information Chart 3 .
Stage 7: Compare the application driver/driven shaft sizes on the highest bore size offered to the coupling selected. If coupling max bore is not really massive ample for your shaft diameter, choose the subsequent largest coupling which will accommodate the driver/driven shaft diameters.
Phase 8: Working with the Item Choice tables, uncover the appropriate Keyway and Bore dimension expected and find the number.