System
S-Flex Coupling Choice Approach
The assortment course of action for identifying the correct S-Flex coupling demands applying the charts proven about the following pages. You will discover three components to get chosen, two flanges and a single sleeve.
Data required just before a coupling may be chosen:
HP and RPM of Driver or operating torque
Shaft dimension of Driver and Driven gear and corresponding keyways
Application or gear description
Environmental ailments (i.e. intense temperature, corrosive problems, area limitations)
Ways In Picking An S-Flex Coupling
Step one: Establish the Nominal Torque in in-lb of one’s application through the use of the following formula:
Nominal Torque 
= (HP x 63025)/RPM
Stage 2: Working with the Application Support Element Chart one choose the service component which best corresponds to your application.
Phase 3: Determine the Style Torque of one’s application by multiplying the Nominal Torque calculated in Phase one from the Application Services Issue established in Step two.
Design Torque = Nominal Torque x Application Service Factor
Step four: Employing the Sleeve Performance Data Chart 2 pick the sleeve material which most effective corresponds to your application.
Phase five: Making use of the S-Flex Nominal Rated Torque Chart three locate the ideal sleeve materials column for that sleeve picked in Phase four.
Stage six: Scan down this column to the initially entry in which the Torque Worth from the column is better than or equal on the Design Torque calculated in Phase 3.
Refer to the greatest RPM worth of the coupling dimension to be sure that the application specifications are met. Should the greatest RPM worth is much less compared to the application requirement, S-Flex couplings will not be proposed for your application.
Note:
If Nominal Torque is significantly less than 1/4 on the coupling’s nominalrated torque, misalignment capacities are lowered by 1/2. Once torque worth is found, refer on the corresponding coupling size in the very first column of your S-Flex Nominal Rated Torque Data Chart 3 .
Stage seven: Assess the application driver/driven shaft sizes to your optimum bore size offered to the coupling picked. If coupling max bore isn’t massive ample for your shaft diameter, pick the following biggest coupling that should accommodate the driver/driven shaft diameters.
Step 8: Using the Item Selection tables, obtain the acceptable Keyway and Bore dimension essential and find the variety.
