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S-Flex Coupling Choice Method
The assortment procedure for figuring out the right S-Flex coupling necessitates utilizing the charts proven around the following pages. There are 3 parts to get chosen, two flanges and one sleeve.
Details essential prior to a coupling is often selected:
HP and RPM of Driver or operating torque
Shaft size of Driver and Driven tools and corresponding keyways
Application or tools description
Environmental conditions (i.e. severe temperature, corrosive conditions, room limitations)
Techniques In Selecting An S-Flex Coupling
Step one: Determine the Nominal Torque in in-lb of the application through the use of the following formula:
Nominal Torque = (HP x 63025)/RPM
Stage 2: Applying the Application Support Element Chart one select the service factor which ideal corresponds for your application.
Phase three: Determine the Style Torque of one’s application by multiplying the Nominal Torque calculated in Stage 1 from the Application Services Issue established in Phase two.
Design Torque = Nominal Torque x Application Services Aspect
Phase four: Working with the Sleeve Performance Information Chart two decide on the sleeve materials which ideal corresponds for your application.
Stage 5: Applying the S-Flex Nominal Rated Torque Chart 3 locate the ideal sleeve material column for that sleeve selected in Stage 4.
Stage six: Scan down this column on the first entry the place the Torque Value during the column is greater than or equal to the Design Torque calculated in Step three.
Refer to your maximum RPM value from the coupling dimension to be sure that the application specifications are met. Should the greatest RPM value is much less than the application necessity, S-Flex couplings are usually not proposed for that application.
If Nominal Torque is significantly less than 1/4 on the coupling’s nominalrated torque, misalignment capacities are diminished by 1/2. The moment torque value is found, refer on the corresponding coupling size from the to start with column with the S-Flex Nominal Rated Torque Data Chart three .
Stage 7: Review the application driver/driven shaft sizes on the maximum bore dimension readily available on the coupling selected. If coupling max bore is not really significant adequate to the shaft diameter, select the following biggest coupling that will accommodate the driver/driven shaft diameters.
Stage 8: Employing the Item Assortment tables, find the ideal Keyway and Bore dimension expected and locate the number.
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