February 22, 2021

S-Flex Coupling Choice Course of action
The selection procedure for identifying the correct S-Flex coupling calls for using the charts shown about the following pages. You can find three elements for being picked, two flanges and a single sleeve.
Info required just before a coupling could be chosen:
HP and RPM of Driver or working torque
Shaft size of Driver and Driven gear and corresponding keyways
Application or products description
Environmental conditions (i.e. extreme temperature, corrosive situations, area limitations)
Methods In Choosing An S-Flex Coupling
Phase 1: Identify the Nominal Torque in in-lb of the application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Stage two: Utilizing the Application Services Issue Chart one choose the services factor which best corresponds for your application.
Phase three: Calculate the Style and design Torque of one’s application by multiplying the Nominal Torque calculated in Phase 1 through the Application Service Element determined in Phase 2.
Style and design Torque = Nominal Torque x Application Services Issue
Phase four: Using the Sleeve Overall performance Information Chart two decide on the sleeve materials which greatest corresponds to your application.
Phase five: Employing the S-Flex Nominal Rated Torque Chart three locate the suitable sleeve material column to the sleeve chosen in Stage 4.
Stage 6: Scan down this column for the 1st entry wherever the Torque Value inside the column is better than or equal for the Design and style Torque calculated in Stage three.
Refer for the maximum RPM worth on the coupling size to guarantee the application needs are met. If your greatest RPM worth is much less than the application requirement, S-Flex couplings are usually not recommended for your application.
If Nominal Torque is significantly less than 1/4 from the coupling’s nominalrated torque, misalignment capacities are diminished by 1/2. As soon as torque worth is found, refer on the corresponding coupling dimension inside the initially column with the S-Flex Nominal Rated Torque Data Chart three .
Step 7: Compare the application driver/driven shaft sizes towards the highest bore dimension available on the coupling selected. If coupling max bore will not be huge ample for the shaft diameter, decide on the subsequent biggest coupling that may accommodate the driver/driven shaft diameters.
Step eight: Applying the Item Assortment tables, come across the ideal Keyway and Bore dimension necessary and find the number.

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