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S-Flex Coupling Variety Procedure
The choice system for figuring out the right S-Flex coupling calls for applying the charts proven around the following pages. You can find three parts to get selected, two flanges and 1 sleeve.
Facts necessary in advance of a coupling can be chosen:
HP and RPM of Driver or operating torque
Shaft size of Driver and Driven equipment and corresponding keyways
Application or tools description
Environmental conditions (i.e. extreme temperature, corrosive situations, space limitations)
Techniques In Picking out An S-Flex Coupling
Phase one: Identify the Nominal Torque in in-lb of one’s application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Employing the Application Services Component Chart one decide on the support aspect which ideal corresponds to your application.
Step three: Determine the Style Torque of the application by multiplying the Nominal Torque calculated in Phase 1 by the Application Support Component determined in Stage two.
Design Torque = Nominal Torque x Application Services Component
Step four: Making use of the Sleeve Functionality Data Chart two decide on the sleeve materials which very best corresponds for your application.
Step five: Utilizing the S-Flex Nominal Rated Torque Chart 3 locate the proper sleeve materials column for the sleeve selected in Step 4.
Phase six: Scan down this column towards the very first entry where the Torque Value inside the column is higher than or equal for the Design Torque calculated in Phase three.
Refer to your maximum RPM worth of your coupling size to make sure the application prerequisites are met. If the greatest RPM value is significantly less than the application necessity, S-Flex couplings usually are not advised for the application.
If Nominal Torque is significantly less than 1/4 from the coupling’s nominalrated torque, misalignment capacities are reduced by 1/2. The moment torque value is located, refer to the corresponding coupling size from the initially column from the S-Flex Nominal Rated Torque Data Chart three .
Step seven: Evaluate the application driver/driven shaft sizes on the maximum bore size available over the coupling picked. If coupling max bore isn’t big adequate for your shaft diameter, pick the following biggest coupling that could accommodate the driver/driven shaft diameters.
Step 8: Employing the Item Variety tables, come across the appropriate Keyway and Bore dimension necessary and find the quantity.

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