S-Flex Coupling Selection Procedure
The choice method for identifying the appropriate S-Flex coupling needs making use of the charts shown around the following pages. You can find 3 elements to be selected, two flanges and one sleeve.
Information necessary in advance of a coupling is usually selected:
HP and RPM of Driver or operating torque
Shaft dimension of Driver and Driven products and corresponding keyways
Application or equipment description
Environmental conditions (i.e. extreme temperature, corrosive disorders, area limitations)
Ways In Picking An S-Flex Coupling
Stage 1: Identify the Nominal Torque in in-lb of one’s application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Making use of the Application Service Factor Chart one decide on the services element which finest corresponds to your application.
Phase 3: Determine the Design Torque of one’s application by multiplying the Nominal Torque calculated in Step 1 through the Application Service Aspect established in Stage two.
Layout Torque = Nominal Torque x Application Services Component
Step 4: Employing the Sleeve Functionality Information Chart 2 decide on the sleeve material which finest corresponds to your application.
Stage five: Using the S-Flex Nominal Rated Torque Chart three locate the suitable sleeve material column for your sleeve chosen in Step 4.
Step six: Scan down this column towards the to start with entry exactly where the Torque Value inside the column is greater than or equal on the Style Torque calculated in Phase three.
Refer for the optimum RPM worth in the coupling size to make certain the application needs are met. In the event the maximum RPM worth is much less compared to the application requirement, S-Flex couplings usually are not recommended for your application.
If Nominal Torque is less than 1/4 of the coupling’s nominalrated torque, misalignment capacities are lowered by 1/2. When torque value is located, refer on the corresponding coupling dimension in the very first column of your S-Flex Nominal Rated Torque Data Chart three .
Step 7: Examine the application driver/driven shaft sizes to your greatest bore size accessible around the coupling picked. If coupling max bore is not huge ample for the shaft diameter, select the subsequent biggest coupling that could accommodate the driver/driven shaft diameters.
Phase eight: Working with the Item Choice tables, discover the proper Keyway and Bore size needed and locate the amount.