Approach
S-Flex Coupling Selection Method
The choice system for figuring out the right S-Flex coupling requires employing the charts proven over the following pages. There are 3 parts for being selected, two flanges and one particular sleeve.
Info essential ahead of a coupling could be picked:
HP and RPM of Driver or operating torque
Shaft dimension of Driver and Driven equipment and corresponding keyways
Application or tools description
Environmental ailments (i.e. severe temperature, corrosive conditions, room limitations)
Measures In Picking out An S-Flex Coupling
Step 1: Determine the Nominal Torque in in-lb of your application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Using the Application Service Issue Chart one select the service component which very best corresponds to your application.
Stage 3: Determine the Design Torque of your application by multiplying the Nominal Torque calculated in Step 1 from the Application Support Component determined in Phase two.
Style and design Torque = Nominal Torque x Application Service Factor
Phase 4: Working with the Sleeve Efficiency Data Chart two decide on the sleeve material which most effective corresponds to your application.
Step 5: Applying the S-Flex Nominal Rated Torque Chart 3 find the acceptable sleeve material column for your sleeve chosen in Step 4.
Step six: Scan down this column to your very first entry wherever the Torque Value during the column is higher than or equal to the Design and style Torque calculated in Step 3.
Refer for the optimum RPM worth of your coupling size to make sure that the application demands are met. If the greatest RPM worth is much less than the application requirement, S-Flex couplings will not be encouraged to the application.
Note:
If Nominal Torque is less than 1/4 of the coupling’s nominalrated torque, misalignment capacities are reduced by 1/2. Once torque value is found, refer to the corresponding coupling size while in the first column of the S-Flex Nominal Rated Torque Data Chart 3 .
Step 7: Examine the application driver/driven shaft sizes to the highest bore dimension accessible on the coupling chosen. If coupling max bore isn’t large sufficient to the shaft diameter, select the next greatest coupling that should accommodate the driver/driven shaft diameters.
Stage eight: Applying the Item Choice tables, come across the suitable Keyway and Bore dimension needed and locate the number.