Jaw Coupling Variety Approach

Jaw Sort Coupling Choice System
The variety system for figuring out the right jaw coupling size and elastomer involves applying the charts proven on the following pages. There are 3 parts to become selected, two hubs and one elastomer. When the shaft dimension of the driver and driven in the application are from the identical diameter, the hubs picked might be exactly the same. When shaft diameters differ, hubs picked will differ accordingly.
Details needed just before a coupling can be selected:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven equipment and corresponding keyways
Application description
Environmental circumstances (i.e. intense temperature, corrosive ailments, room limitations)
Steps In Picking A Jaw Coupling
Phase one: Determine the Nominal Torque of your application by using the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage two: Working with the Application Services Factors Chart 1 pick the service factor which greatest corresponds to your application.
Step 3: Determine the Layout Torque of your application by multiplying the Nominal Torque calculated in Stage one by the Application Services Aspect established in Step two.
Design Torque = Nominal Torque x Application Service Factor
Stage 4: Employing the Spider Overall performance Data Chart 2, pick the elastomer materials which finest corresponds to your application.
Stage five: Employing the Jaw Nominal Rated Torque Chart three , locate the appropriate elastomer materials column to the elastomer selected in Stage four.
Scan down this column to your initially entry exactly where the Torque Value within the suitable column is higher than or equal to the Design Torque calculated in Step three.
Once this value is located, refer towards the corresponding coupling size in the 1st column from the Jaw Nominal Rated Torque Chart three .
Refer on the optimum RPM value for this elastomer torque capability to make certain that the application specifications are met. In the event the necessity just isn’t happy at this point, another form of coupling can be required to the application. Please talk to Lovejoy engineering for help.
Phase 6: Examine the application driver/driven shaft sizes towards the optimum bore size offered within the coupling picked. If coupling bore dimension will not be significant ample for the shaft diameter, choose the following greatest coupling that should accommodate the driver/driven shaft diameters.
Step 7: Using the UPC amount assortment table , uncover the acceptable Bore and Keyway sizes required and locate the number.


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