Approach
S-Flex Coupling Choice Procedure
The selection approach for figuring out the appropriate S-Flex coupling calls for working with the charts proven over the following pages. There are three elements to get picked, two flanges and one sleeve.
Details necessary ahead of a coupling is usually chosen:
HP and RPM of Driver or working torque
Shaft size of Driver and Driven gear and corresponding keyways
Application or equipment description
Environmental problems (i.e. severe temperature, corrosive problems, area limitations)
Methods In Choosing An S-Flex Coupling
Step 1: Identify the Nominal Torque in in-lb of one’s application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Stage two: Employing the Application Services Component Chart 1 select the support issue which greatest corresponds for your application.
Phase three: Determine the Style and design Torque of one’s application by multiplying the Nominal Torque calculated in Stage 1 by the Application Services Factor determined in Stage 2.
Design and style Torque = Nominal Torque x Application Service Aspect
Phase four: Employing the Sleeve Efficiency Information Chart two select the sleeve materials which best corresponds to your application.
Step 5: Making use of the S-Flex Nominal Rated Torque Chart three locate the appropriate sleeve material column to the sleeve chosen in Step 4.
Stage 6: Scan down this column for the initial entry where the Torque Worth during the column is better than or equal to your Style and design Torque calculated in Phase three.
Refer on the optimum RPM worth in the coupling dimension to guarantee the application necessities are met. When the highest RPM value is less compared to the application necessity, S-Flex couplings aren’t encouraged for that application.
Note:
If Nominal Torque is less than 1/4 from the coupling’s nominalrated torque, misalignment capacities are lowered by 1/2. The moment torque worth is located, refer to your corresponding coupling size inside the to start with column on the S-Flex Nominal Rated Torque Information Chart three .
Phase 7: Assess the application driver/driven shaft sizes to your greatest bore size available about the coupling picked. If coupling max bore just isn’t big enough for your shaft diameter, decide on the next biggest coupling which will accommodate the driver/driven shaft diameters.
Stage eight: Working with the Item Choice tables, locate the ideal Keyway and Bore size necessary and find the quantity.