System
S-Flex Coupling Selection Method
The variety course of action for identifying the proper S-Flex coupling needs making use of the charts proven on the following pages. You can find 3 components to become selected, two flanges and a single sleeve.
Data needed just before a coupling might be chosen:
HP and RPM of Driver or operating torque
Shaft dimension of Driver and Driven products and corresponding keyways
Application or gear description
Environmental situations (i.e. excessive temperature, corrosive problems, area limitations)
Measures In Picking out An S-Flex Coupling
Stage 1: Determine the Nominal Torque in in-lb of the application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase two: Employing the Application Support Component Chart one pick the services element which most effective corresponds to your application.
Stage three: Calculate the Style and design Torque of your application by multiplying the Nominal Torque calculated in Stage one through the Application Services Element established in Phase 2.
Style and design Torque = Nominal Torque x Application Service Aspect
Step 4: Working with the Sleeve Functionality Data Chart 
2 choose the sleeve materials which greatest corresponds to your application.
Step five: Using the S-Flex Nominal Rated Torque Chart 3 find the suitable sleeve materials column for that sleeve picked in Phase four.
Phase six: Scan down this column on the initial entry the place the Torque Worth from the column is better than or equal to your Layout Torque calculated in Step three.
Refer for the maximum RPM value with the coupling size to ensure the application requirements are met. When the greatest RPM worth is significantly less than the application necessity, S-Flex couplings usually are not advisable for that application.
Note:
If Nominal Torque is much less than 1/4 of your coupling’s nominalrated torque, misalignment capacities are lowered by 1/2. After torque value is found, refer to your corresponding coupling dimension within the first column on the S-Flex Nominal Rated Torque Information Chart 3 .
Stage 7: Assess the application driver/driven shaft sizes on the maximum bore size obtainable to the coupling picked. If coupling max bore will not be big adequate for that shaft diameter, choose the subsequent biggest coupling that can accommodate the driver/driven shaft diameters.
Step 8: Utilizing the Item Selection tables, discover the appropriate Keyway and Bore dimension required and find the variety.
