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S-Flex Coupling Selection Procedure
The assortment process for determining the correct S-Flex coupling needs making use of the charts shown to the following pages. There are 3 elements to become chosen, two flanges and one particular sleeve.
Info required ahead of a coupling might be selected:
HP and RPM of Driver or operating torque
Shaft size of Driver and Driven equipment and corresponding keyways
Application or tools description
Environmental ailments (i.e. excessive temperature, corrosive situations, room limitations)
Measures In Picking out An S-Flex Coupling
Step one: Figure out the Nominal Torque in in-lb of one’s application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Applying the Application Services Issue Chart one decide on the support aspect which ideal corresponds for your application.
Phase three: Calculate the Style Torque of the application by multiplying the Nominal Torque calculated in Phase one through the Application Service Factor established in Stage two.
Design and style Torque = Nominal Torque x Application Services Element
Step 4: Employing the Sleeve Effectiveness Data Chart 2 pick the sleeve material which ideal corresponds to your application.
Phase 5: Using the S-Flex Nominal Rated Torque Chart three find the proper sleeve materials column to the sleeve chosen in Phase four.
Stage six: Scan down this column towards the initial entry wherever the Torque Value within the column is better than or equal to the Layout Torque calculated in Step three.
Refer to your highest RPM worth in the coupling dimension to be sure that the application prerequisites are met. If the maximum RPM value is less compared to the application necessity, S-Flex couplings are not recommended for your application.
Note:
If Nominal Torque is significantly less than 1/4 in the coupling’s nominalrated torque, misalignment capacities are diminished by 1/2. As soon as torque worth is found, refer towards the corresponding coupling dimension within the to start with column with the S-Flex Nominal Rated Torque Information Chart three .
Phase seven: Examine the application driver/driven shaft sizes on the maximum bore dimension obtainable to the coupling picked. If coupling max bore is not really substantial enough to the shaft diameter, choose the next greatest coupling that could accommodate the driver/driven shaft diameters.
Step eight: Working with the Item Selection tables, discover the ideal Keyway and Bore dimension essential and locate the variety.