Process
S-Flex Coupling Selection Method
The variety method for identifying the correct S-Flex coupling calls for using the charts shown around the following pages. There are 3 parts to get picked, two flanges and one particular sleeve.
Facts needed ahead of a coupling may be chosen:
HP and RPM of Driver or operating torque
Shaft dimension of Driver and Driven products and corresponding keyways
Application or products description
Environmental ailments (i.e. extreme temperature, corrosive problems, area limitations)
Steps In Deciding on An S-Flex Coupling
Phase 1: Ascertain the Nominal Torque in in-lb of the application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Step two: Applying the Application Support Element Chart one choose the services component which ideal corresponds for your application.
Stage three: Calculate the Layout Torque of the application by multiplying the Nominal Torque calculated in Phase 1 by the Application Services Component determined in Step 2.
Design and style Torque = Nominal Torque x Application Support Factor
Stage 4: Making use of the Sleeve Effectiveness Information Chart 2 choose the sleeve materials which greatest corresponds to your application.
Stage 5: Using the S-Flex Nominal Rated Torque Chart 3 locate the appropriate sleeve material column to the sleeve picked in Phase four.
Phase six: Scan down this column to the initial entry exactly where the Torque Value while in the column is better than or equal on the Design and style Torque calculated in Step 3.
Refer for the maximum RPM value in the coupling size to ensure that the application necessities are met. If your optimum RPM value is significantly less than the application necessity, S-Flex couplings aren’t encouraged for the application.
Note:
If Nominal Torque is much less than 1/4 of the coupling’s nominalrated torque, misalignment capacities are reduced by 1/2. Once torque value is located, refer for the corresponding coupling size inside the 1st column on the S-Flex Nominal Rated Torque Information Chart 3 .
Stage 7: Examine the application driver/driven shaft sizes on the maximum bore size offered about the coupling selected. If coupling max bore just isn’t substantial ample to the shaft diameter, choose the next largest coupling which will accommodate the driver/driven shaft diameters.
Step 8: Utilizing the Item Choice tables, uncover the appropriate Keyway and Bore size necessary and locate the quantity.