S-Flex Coupling Selection Process
The choice process for determining the correct S-Flex coupling calls for applying the charts shown on the following pages. You will discover three parts for being selected, two flanges and one particular sleeve.
Info vital in advance of a coupling could be picked:
HP and RPM of Driver or running torque
Shaft size of Driver and Driven gear and corresponding keyways
Application or gear description
Environmental ailments (i.e. intense temperature, corrosive ailments, area limitations)
Measures In Deciding on An S-Flex Coupling
Step 1: Ascertain the Nominal Torque in in-lb of one’s application through the use of the following formula:
Nominal Torque = (HP x 63025)/RPM
Step 2: Employing the Application Services Aspect Chart one decide on the support issue which very best corresponds to your application.
Stage 3: Determine the Design Torque of your application by multiplying the Nominal Torque calculated in Step one by the Application Service Element determined in Stage 2.
Style and design Torque = Nominal Torque x Application Service Factor
Phase 4: Making use of the Sleeve Functionality Data Chart 2 pick the sleeve materials which very best corresponds for your application.
Step 5: Employing the S-Flex Nominal Rated Torque Chart three find the proper sleeve materials column to the sleeve picked in Step four.
Step six: Scan down this column for the initially entry in which the Torque Worth while in the column is better than or equal to your Style and design Torque calculated in Step 3.
Refer on the greatest RPM worth of the coupling size to make sure the application prerequisites are met. In case the highest RPM value is less than the application necessity, S-Flex couplings will not be advisable to the application.
If Nominal Torque is much less than 1/4 in the coupling’s nominalrated torque, misalignment capacities are decreased by 1/2. After torque worth is located, refer for the corresponding coupling dimension while in the 1st column in the S-Flex Nominal Rated Torque Information Chart 3 .
Step 7: Assess the application driver/driven shaft sizes for the greatest bore dimension obtainable to the coupling picked. If coupling max bore is just not massive sufficient for your shaft diameter, decide on the next largest coupling that should accommodate the driver/driven shaft diameters.
Step eight: Utilizing the Item Variety tables, obtain the acceptable Keyway and Bore dimension necessary and find the variety.