S-Flex Coupling Choice Process
The variety procedure for figuring out the right S-Flex coupling involves employing the charts shown about the following pages. You will find 3 parts for being selected, two flanges and one particular sleeve.
Data vital before a coupling is often picked:
HP and RPM of Driver or operating torque
Shaft size of Driver and Driven products and corresponding keyways
Application or equipment description
Environmental situations (i.e. severe temperature, corrosive situations, room limitations)
Measures In Picking An S-Flex Coupling
Step 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
Phase 2: Working with the Application Service Aspect Chart 1 pick the services component which very best corresponds to your application.
Stage three: Determine the Design Torque of one’s application by multiplying the Nominal Torque calculated in Phase 1 from the Application Services Aspect established in Step 2.
Design Torque = Nominal Torque x Application Service Component
Phase four: Making use of the Sleeve Functionality Information Chart two select the sleeve material which most effective corresponds to your application.
Phase five: Utilizing the S-Flex Nominal Rated Torque Chart three find the suitable sleeve materials column for that sleeve selected in Stage four.
Step six: Scan down this column for the first entry in which the Torque Worth in the column is better than or equal to the Layout Torque calculated in Phase 3.
Refer to your maximum RPM worth from the coupling size to be sure that the application demands are met. In the event the optimum RPM worth is significantly less than the application necessity, S-Flex couplings usually are not advisable for that application.
If Nominal Torque is significantly less than 1/4 in the coupling’s nominalrated torque, misalignment capacities are decreased by 1/2. Once torque worth is found, refer on the corresponding coupling dimension in the very first column in the S-Flex Nominal Rated Torque Data Chart 3 .
Phase seven: Compare the application driver/driven shaft sizes on the greatest bore dimension accessible around the coupling chosen. If coupling max bore isn’t substantial ample for that shaft diameter, pick the next largest coupling that may accommodate the driver/driven shaft diameters.
Step 8: Employing the Item Choice tables, find the proper Keyway and Bore dimension demanded and locate the amount.