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February 22, 2021

Method
S-Flex Coupling Variety Course of action
The variety procedure for figuring out the appropriate S-Flex coupling demands employing the charts shown around the following pages. There are actually three components to be selected, two flanges and one particular sleeve.
Facts vital just before a coupling is often picked:
HP and RPM of Driver or working torque
Shaft size of Driver and Driven equipment and corresponding keyways
Application or products description
Environmental situations (i.e. severe temperature, corrosive problems, space limitations)
Ways In Picking out An S-Flex Coupling
Stage one: Determine the Nominal Torque in in-lb of your application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Applying the Application Services Factor Chart one pick the service issue which best corresponds for your application.
Phase 3: Determine the Design Torque of the application by multiplying the Nominal Torque calculated in Stage 1 through the Application Service Issue determined in Stage two.
Style and design Torque = Nominal Torque x Application Service Issue
Stage four: Using the Sleeve Effectiveness Data Chart two select the sleeve materials which ideal corresponds for your application.
Stage 5: Making use of the S-Flex Nominal Rated Torque Chart 3 locate the proper sleeve materials column for the sleeve selected in Phase 4.
Phase 6: Scan down this column towards the very first entry exactly where the Torque Worth in the column is better than or equal for the Style Torque calculated in Step three.
Refer towards the optimum RPM worth on the coupling size to make certain the application prerequisites are met. In the event the highest RPM worth is much less compared to the application requirement, S-Flex couplings are usually not suggested to the application.
Note:
If Nominal Torque is less than 1/4 in the coupling’s nominalrated torque, misalignment capacities are decreased by 1/2. After torque value is found, refer for the corresponding coupling dimension from the initially column of your S-Flex Nominal Rated Torque Data Chart three .
Phase seven: Review the application driver/driven shaft sizes towards the maximum bore dimension out there within the coupling chosen. If coupling max bore is not really large ample to the shaft diameter, choose the following biggest coupling that may accommodate the driver/driven shaft diameters.
Step 8: Making use of the Item Assortment tables, discover the suitable Keyway and Bore dimension necessary and locate the quantity.