S-Flex Choice

S-Flex Coupling Assortment Method
The assortment method for figuring out the correct S-Flex coupling involves making use of the charts proven about the following pages. You will discover 3 parts to be chosen, two flanges and a single sleeve.
Facts vital before a coupling could be chosen:
HP and RPM of Driver or working torque
Shaft dimension of Driver and Driven tools and corresponding keyways
Application or tools description
Environmental conditions (i.e. intense temperature, corrosive conditions, room limitations)
Methods In Picking An S-Flex Coupling
Stage one: Decide the Nominal Torque in in-lb of one’s application by utilizing the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Making use of the Application Support Element Chart one choose the support element which best corresponds to your application.
Phase 3: Determine the Layout Torque of one’s application by multiplying the Nominal Torque calculated in Phase one from the Application Services Element determined in Phase 2.
Style Torque = Nominal Torque x Application Support Aspect
Phase 4: Employing the Sleeve Effectiveness Information Chart two choose the sleeve materials which finest corresponds to your application.
Phase 5: Utilizing the S-Flex Nominal Rated Torque Chart 3 locate the acceptable sleeve materials column for the sleeve selected in Stage four.
Stage 6: Scan down this column towards the to start with entry where the Torque Value while in the column is higher than or equal to your Style and design Torque calculated in Phase three.
Refer to your highest RPM worth with the coupling size to be sure the application necessities are met. Should the greatest RPM worth is less compared to the application requirement, S-Flex couplings are not recommended for that application.
If Nominal Torque is less than 1/4 of the coupling’s nominalrated torque, misalignment capacities are diminished by 1/2. Once torque value is found, refer to your corresponding coupling dimension inside the to start with column in the S-Flex Nominal Rated Torque Information Chart three .
Stage seven: Assess the application driver/driven shaft sizes on the maximum bore dimension out there to the coupling selected. If coupling max bore is not massive ample for your shaft diameter, pick the following greatest coupling that could accommodate the driver/driven shaft diameters.
Step 8: Making use of the Item Variety tables, obtain the acceptable Keyway and Bore size essential and find the quantity.


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