Method
S-Flex Coupling Assortment Process
The selection procedure for figuring out the appropriate S-Flex coupling involves utilizing the charts shown over the following pages. There are three elements to become selected, two flanges and one particular sleeve.
Information and facts vital before a coupling is often picked:
HP and RPM of Driver or working torque
Shaft size of Driver and Driven products and corresponding keyways
Application or products description
Environmental conditions (i.e. excessive temperature, corrosive disorders, room limitations)
Actions In Picking out An S-Flex Coupling
Stage 1: Determine the Nominal Torque in in-lb of the application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Step two: Using the Application Services Factor Chart 1 decide on the support aspect which greatest corresponds for your application.
Step three: Calculate the Layout Torque of your application by multiplying the Nominal Torque calculated in Step 1 through the Application Support Aspect determined in Stage 2.
Design and style Torque = Nominal Torque x Application Services Element
Phase 4: Using the Sleeve Efficiency Information Chart two select the sleeve materials which greatest corresponds for your application.
Step 5: Working with the S-Flex Nominal Rated Torque Chart three find the suitable sleeve material column for your sleeve selected in Step 4.
Phase 6: Scan down this column on the first entry wherever the Torque Value within the column is greater than or equal to the Layout Torque calculated in Step three.
Refer for the optimum RPM value on the coupling size to ensure that the application demands are met. When the optimum RPM value is significantly less than the application necessity, S-Flex couplings are not suggested for that application.
Note:
If Nominal Torque is less than 1/4 of your coupling’s nominalrated torque, misalignment capacities are reduced by 1/2. When torque value is located, refer to the corresponding coupling dimension inside the to start with column from the S-Flex Nominal Rated Torque Information Chart three .
Phase 7: Compare the application driver/driven shaft sizes for the greatest bore dimension available around the coupling selected. If coupling max bore will not be significant sufficient to the shaft diameter, select the subsequent greatest coupling that can accommodate the driver/driven shaft diameters.
Stage eight: Employing the Item Variety tables, locate the suitable Keyway and Bore size demanded and locate the number.