Process
S-Flex Coupling Selection Method
The variety procedure for determining the right S-Flex coupling demands making use of the charts shown to the following pages. You will find 3 parts to become selected, two flanges and a single sleeve.
Details essential just before a coupling is often chosen:
HP and RPM of Driver or operating torque
Shaft size of Driver and Driven equipment and corresponding keyways
Application or tools description
Environmental ailments (i.e. extreme temperature, corrosive problems, room limitations)
Methods In Selecting An S-Flex Coupling
Stage one: Decide the Nominal Torque in in-lb of one’s application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Stage two: Applying the Application Services Component Chart one decide on the service element which greatest corresponds for your application.
Phase 3: Determine the Design Torque of the application by multiplying the Nominal Torque calculated in Step one through the Application Service Aspect determined in Phase two.
Layout Torque = Nominal Torque x Application Services Issue
Stage 4: Making use of the Sleeve Performance Information Chart 2 pick the sleeve materials which finest corresponds for your application.
Step five: Using the S-Flex Nominal Rated Torque Chart three find the proper sleeve materials column for that sleeve chosen in Phase 4.
Phase six: Scan down this column for the initial entry the place the Torque Value inside the column is higher than or equal towards the Layout Torque calculated in Stage 3.
Refer to your highest RPM worth on the coupling dimension to guarantee that the application necessities are met. When the optimum RPM value is much less compared to the application necessity, S-Flex couplings aren’t suggested for your application.
Note:
If Nominal Torque is much less than 1/4 in the coupling’s nominalrated torque, misalignment capacities are reduced by 1/2. As soon as torque worth is located, refer for the corresponding coupling size within the initially column of your S-Flex Nominal Rated Torque Information Chart three .
Step seven: Assess the application driver/driven shaft sizes on the optimum bore dimension offered over the coupling picked. If coupling max bore is not really significant sufficient to the shaft diameter, choose the next greatest coupling that should accommodate the driver/driven shaft diameters.
Step eight: Applying the Item Selection tables, locate the acceptable Keyway and Bore size expected and find the number.