Method
S-Flex Coupling Assortment Method
The selection course of action for figuring out the correct S-Flex coupling involves employing the charts shown to the following pages. There are actually 3 elements to become selected, two flanges and a single sleeve.
Information essential just before a coupling may be chosen:
HP and RPM of Driver or running torque
Shaft size of Driver and Driven products and corresponding keyways
Application or tools description
Environmental problems (i.e. intense temperature, corrosive ailments, room limitations)
Steps In Picking An S-Flex Coupling
Step 1: Determine the Nominal Torque in in-lb of your application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Stage 2: Using the Application Service Element Chart 1 decide on the service issue which most effective corresponds to your application.
Step 3: Determine the Style and design Torque of the application by multiplying the Nominal Torque calculated in Phase one from the Application Services Issue determined in Stage 2.
Layout Torque = Nominal Torque x Application Support Component
Phase 4: Making use of the Sleeve Overall performance Data Chart two pick the sleeve material which finest corresponds for your application.
Step 5: Employing the S-Flex Nominal Rated Torque Chart three find the suitable sleeve materials column for your sleeve selected in Phase 4.
Phase six: Scan down this column on the first entry the place the Torque Worth from the column is greater than or equal to the Design and style Torque calculated in Phase 3.
Refer towards the maximum RPM value with the coupling dimension to make sure that the application needs are met. If your highest RPM value is less compared to the application requirement, S-Flex couplings usually are not advisable for your application.
Note:
If Nominal Torque is significantly less than 1/4 of the coupling’s nominalrated torque, misalignment capacities are reduced by 1/2. Once torque value is found, refer on the corresponding coupling dimension while in the initially column with the S-Flex Nominal Rated Torque Data Chart 3 .
Step 7: Examine the application driver/driven shaft sizes to your highest bore size available on the coupling chosen. If coupling max bore is not really large sufficient for your shaft diameter, decide on the next greatest coupling that could accommodate the driver/driven shaft diameters.
Step 8: Employing the Item Selection tables, uncover the appropriate Keyway and Bore dimension demanded and locate the variety.
