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S-Flex Coupling Choice Method
The assortment course of action for identifying the correct S-Flex coupling requires employing the charts proven about the following pages. You can find three components to get chosen, two flanges and a single sleeve.
Data required just before a coupling may be selected:
HP and RPM of Driver or running torque
Shaft dimension of Driver and Driven gear and corresponding keyways
Application or equipment description
Environmental situations (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 element which best corresponds to your application.
Stage 3: Determine the Style Torque of your 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 4: Employing the Sleeve Performance Data Chart 2 choose the sleeve material which most effective corresponds to your application.
Stage five: Making use of the S-Flex Nominal Rated Torque Chart 3 locate the acceptable sleeve materials column for that sleeve picked in Phase four.
Stage six: Scan down this column to the very first entry in which the Torque Worth from the column is better than or equal on the Design Torque calculated in Stage 3.
Refer to the highest RPM worth of the coupling dimension to be sure that the application specifications are met. In case the greatest RPM worth is much less compared to the application requirement, S-Flex couplings aren’t 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 .
Step 7: Assess the application driver/driven shaft sizes to your optimum bore size accessible to the coupling picked. If coupling max bore isn’t big ample for your shaft diameter, choose the following biggest coupling that should accommodate the driver/driven shaft diameters.
Step 8: Using the Item Selection tables, uncover the acceptable Keyway and Bore dimension essential and find the amount.