S-Flex Coupling Choice Process
The choice method for figuring out the right S-Flex coupling necessitates applying the charts shown within the following pages. You can find 3 elements to be chosen, two flanges and one sleeve.
Info needed ahead of a coupling might be selected:
HP and RPM of Driver or running torque
Shaft size of Driver and Driven equipment and corresponding keyways
Application or equipment description
Environmental disorders (i.e. severe temperature, corrosive disorders, area limitations)
Ways In Deciding on An S-Flex Coupling
Step 1: Determine the Nominal Torque in in-lb of the application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Step two: Utilizing the Application Service Component Chart 1 select the service aspect which greatest corresponds to your application.
Step three: Determine the Design Torque of one’s application by multiplying the Nominal Torque calculated in Phase 1 through the Application Service Component established in Stage 2.
Design Torque = Nominal Torque x Application Support Aspect
Step four: Using the Sleeve Functionality Information Chart two decide on the sleeve materials which very best corresponds for your application.
Phase five: Using the S-Flex Nominal Rated Torque Chart three find the ideal sleeve material column to the sleeve picked in Phase four.
Step 6: Scan down this column for the very first entry in which the Torque Value in the column is greater than or equal on the Design Torque calculated in Step 3.
Refer towards the optimum RPM value with the coupling size to guarantee the application specifications are met. When the highest RPM value is much less compared to the application necessity, S-Flex couplings aren’t advised for the application.
If Nominal Torque is significantly less than 1/4 in the coupling’s nominalrated torque, misalignment capacities are diminished by 1/2. The moment torque value is located, refer for the corresponding coupling size within the initially column from the S-Flex Nominal Rated Torque Data Chart 3 .
Phase seven: Compare the application driver/driven shaft sizes for the greatest bore dimension readily available over the coupling selected. If coupling max bore is just not significant adequate for that shaft diameter, choose the next greatest coupling that should accommodate the driver/driven shaft diameters.
Stage eight: Applying the Item Selection tables, obtain the proper Keyway and Bore dimension expected and find the variety.