System
S-Flex Coupling Choice Course of action
The choice method for determining the right S-Flex coupling calls for applying the charts shown around the following pages. You’ll find 3 elements to be chosen, two flanges and one particular sleeve.
Info needed just before a coupling may be picked:
HP and RPM of Driver or running torque
Shaft size of Driver and Driven equipment and corresponding keyways
Application or equipment description
Environmental ailments (i.e. severe temperature, corrosive ailments, area limitations)
Methods In Deciding on An S-Flex Coupling
Phase 1: Determine the Nominal Torque in in-lb of the application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase two: Utilizing the Application Support Component Chart 1 decide on the support aspect which greatest corresponds for your application.
Step three: Determine the Design Torque of one’s application by multiplying the Nominal Torque calculated in Stage 1 through the Application Service Issue established in Stage two.
Design Torque = Nominal Torque x Application Support Aspect
Step four: Using the Sleeve Efficiency Data Chart 2 pick the sleeve materials which very best corresponds for your application.
Stage five: Applying the S-Flex Nominal Rated Torque Chart three locate the proper sleeve material column to the sleeve chosen in Phase four.
Step 6: Scan down this column towards the initial entry in which the Torque Worth during the column is greater than or equal on the Style and design Torque calculated in Phase 3.
Refer towards the optimum RPM value with the coupling size to guarantee the application specifications are met. When the highest RPM value is less compared to the application requirement, S-Flex couplings are not advised for that application.
Note:
If Nominal Torque is significantly less than 1/4 in the coupling’s nominalrated torque, misalignment capacities are lowered by 1/2. The moment torque value is found, refer towards the corresponding coupling dimension in the 1st column of the S-Flex Nominal Rated Torque Data Chart 3 .
Stage 7: Assess the application driver/driven shaft sizes for the highest bore dimension offered over the coupling selected. If coupling max bore just isn’t massive adequate for that shaft diameter, choose the next greatest coupling that could accommodate the driver/driven shaft diameters.
Stage eight: Applying the Item Selection tables, obtain the proper Keyway and Bore size necessary and locate the quantity.