S-Flex Coupling Selection System
The assortment course of action for determining the proper S-Flex coupling needs using the charts shown within the following pages. You’ll find 3 parts to get chosen, two flanges and 1 sleeve.
Data necessary ahead of a coupling may be chosen:
HP and RPM of Driver or running torque
Shaft size of Driver and Driven tools and corresponding keyways
Application or products description
Environmental problems (i.e. extreme temperature, corrosive conditions, space limitations)
Steps In Selecting An S-Flex Coupling
Phase one: Identify the Nominal Torque in in-lb of one’s application by using the following formula:
Nominal Torque = (HP x 63025)/RPM
Phase 2: Using the Application Service Factor Chart 1 select the services aspect which very best corresponds to your application.
Stage 3: Calculate the Style Torque of one’s application by multiplying the Nominal Torque calculated in Step 1 through the Application Support Factor established in Phase 2.
Layout Torque = Nominal Torque x Application Service Component
Phase 4: Utilizing the Sleeve Performance Data Chart 2 choose the sleeve materials which very best corresponds for your application.
Phase five: Applying the S-Flex Nominal Rated Torque Chart three locate the acceptable sleeve materials column for that sleeve selected in Phase four.
Phase 6: Scan down this column for the to start with entry wherever the Torque Worth within the column is higher than or equal for the Design and style Torque calculated in Stage 3.
Refer to the maximum RPM worth of the coupling size to make sure that the application needs are met. When the greatest RPM value is significantly less compared to the application requirement, S-Flex couplings usually are not encouraged for your application.
If Nominal Torque is much less than 1/4 on the coupling’s nominalrated torque, misalignment capacities are diminished by 1/2. As soon as torque worth is located, refer to your corresponding coupling dimension during the to start with column in the S-Flex Nominal Rated Torque Data Chart 3 .
Step 7: Assess the application driver/driven shaft sizes towards the optimum bore size readily available about the coupling selected. If coupling max bore is just not significant ample for that shaft diameter, decide on the next biggest coupling that should accommodate the driver/driven shaft diameters.
Phase eight: Making use of the Item Choice tables, obtain the ideal Keyway and Bore dimension demanded and locate the number.