February 22, 2021

S-Flex Coupling Assortment Process
The variety procedure for identifying the proper S-Flex coupling involves working with the charts shown around the following pages. There are 3 elements for being chosen, two flanges and a single sleeve.
Details essential just before a coupling can be chosen:
HP and RPM of Driver or running torque
Shaft dimension of Driver and Driven tools and corresponding keyways
Application or tools description
Environmental problems (i.e. extreme temperature, corrosive problems, space limitations)
Ways In Deciding on An S-Flex Coupling
Stage one: Ascertain the Nominal Torque in in-lb of one’s application through the use of the following formula:
Nominal Torque = (HP x 63025)/RPM
Step two: Working with the Application Services Factor Chart one select the services issue which very best corresponds for your application.
Stage 3: Determine the Layout Torque of the application by multiplying the Nominal Torque calculated in Stage one through the Application Service Issue determined in Step 2.
Design and style Torque = Nominal Torque x Application Services Issue
Step 4: Making use of the Sleeve Functionality Information Chart 2 choose the sleeve materials which best corresponds to your application.
Stage 5: Working with the S-Flex Nominal Rated Torque Chart three find the ideal sleeve material column to the sleeve chosen in Phase 4.
Stage six: Scan down this column to your to start with entry where the Torque Worth within the column is higher than or equal for the Design Torque calculated in Phase three.
Refer towards the greatest RPM worth of the coupling size to be sure that the application necessities are met. In case the maximum RPM value is much less compared to the application necessity, S-Flex couplings are usually not encouraged for that application.
If Nominal Torque is less than 1/4 with the coupling’s nominalrated torque, misalignment capacities are diminished by 1/2. The moment torque value is located, refer on the corresponding coupling size while in the very first column from the S-Flex Nominal Rated Torque Data Chart three .
Step seven: Evaluate the application driver/driven shaft sizes for the greatest bore dimension obtainable within the coupling selected. If coupling max bore just isn’t massive adequate for your shaft diameter, select the next largest coupling which will accommodate the driver/driven shaft diameters.
Stage eight: Applying the Item Selection tables, uncover the ideal Keyway and Bore dimension needed and locate the quantity.