Procedure
S-Flex Coupling Assortment System
The choice procedure for determining the proper S-Flex coupling needs making use of the charts proven around the following pages. You will discover 3 parts to get selected, two flanges and 1 sleeve.
Facts important in advance of a coupling can be selected:
HP and RPM of Driver or operating torque
Shaft dimension of Driver and Driven gear and corresponding keyways
Application or tools description
Environmental conditions (i.e. excessive temperature, corrosive ailments, space limitations)
Measures In Picking An S-Flex Coupling
Stage one: Figure out the Nominal Torque in in-lb of your application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Using the Application Services Element Chart one choose the support factor which most effective corresponds for your application.
Stage 3: Determine the Style Torque of one’s application by multiplying the Nominal Torque calculated in Phase one by the Application Services Aspect determined in Stage two.
Style and design Torque = Nominal Torque x Application Services Factor
Stage 4: Utilizing the Sleeve Functionality Data Chart two choose the sleeve materials which finest corresponds to your application.
Stage 5: Applying the S-Flex Nominal Rated Torque Chart three locate the suitable sleeve materials column for the sleeve picked in Phase 4.
Stage six: Scan down this column to your 1st entry wherever the Torque Value within the column is greater than or equal on the Style and design Torque calculated in Phase three.
Refer to your optimum RPM value on the coupling size to make certain that the application necessities are met. If your greatest RPM worth is less than the application requirement, S-Flex couplings are not advisable to the application.
Note:
If Nominal Torque is less than 1/4 on the coupling’s nominalrated torque, misalignment capacities are lowered by 1/2. Once torque worth is found, refer to your corresponding coupling size inside the to start with column of the S-Flex Nominal Rated Torque Data Chart three .
Step seven: Evaluate the application driver/driven shaft sizes on the maximum bore dimension out there to the coupling selected. If coupling max bore will not be big ample for the shaft diameter, select the next biggest coupling that could accommodate the driver/driven shaft diameters.
Phase 8: Using the Item Choice tables, come across the acceptable Keyway and Bore size needed and find the number.