S-Flex Coupling Selection Method
The assortment process for determining the proper S-Flex coupling needs applying the charts proven within the following pages. You’ll find three components to become chosen, two flanges and 1 sleeve.
Information vital in advance of a coupling is usually selected:
HP and RPM of Driver or working torque
Shaft dimension of Driver and Driven equipment and corresponding keyways
Application or gear description
Environmental disorders (i.e. excessive temperature, corrosive conditions, room limitations)
Steps In Picking out An S-Flex Coupling
Step one: Decide the Nominal Torque in in-lb of one’s application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Using the Application Support Factor Chart 1 select the service issue which finest corresponds to your application.
Stage three: Calculate the Layout Torque of your application by multiplying the Nominal Torque calculated in Phase 1 by the Application Service Component established in Step 2.
Layout Torque = Nominal Torque x Application Service Element
Stage four: Working with the Sleeve Performance Data Chart two pick the sleeve materials which very best corresponds for your application.
Stage five: Utilizing the S-Flex Nominal Rated Torque Chart 3 find the ideal sleeve materials column for your sleeve selected in Step 4.
Stage 6: Scan down this column to your first entry the place the Torque Value during the column is greater than or equal towards the Style Torque calculated in Step three.
Refer to the greatest RPM value in the coupling size to make certain that the application specifications are met. In the event the highest RPM value is much less than the application necessity, S-Flex couplings usually are not encouraged for the application.
If Nominal Torque is less than 1/4 of your coupling’s nominalrated torque, misalignment capacities are decreased by 1/2. Once torque value is found, refer towards the corresponding coupling size within the 1st column in the S-Flex Nominal Rated Torque Information Chart 3 .
Phase seven: Review the application driver/driven shaft sizes to the maximum bore size out there over the coupling selected. If coupling max bore isn’t large adequate for the shaft diameter, choose the subsequent largest coupling that will accommodate the driver/driven shaft diameters.
Phase 8: Employing the Item Variety tables, uncover the acceptable Keyway and Bore size needed and locate the variety.