Jaw Form Coupling Variety System
The selection method for figuring out the right jaw coupling dimension and elastomer demands using the charts proven to the following pages. You’ll find 3 parts to be picked, two hubs and 1 elastomer. When the shaft size from the driver and driven in the application are of the exact same diameter, the hubs chosen might be exactly the same. When shaft diameters differ, hubs chosen will differ accordingly.
Details essential ahead of a coupling may be picked:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven products and corresponding keyways
Application description
Environmental situations (i.e. intense temperature, corrosive problems, area limitations)
Actions In Picking A Jaw Coupling
Phase 1: Decide the Nominal Torque of your application by using the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Phase 2: Employing the Application Service Variables Chart 1 choose the services element which greatest corresponds to your application.
Stage three: Calculate the Layout Torque of the application by multiplying the Nominal Torque calculated in Step one by the Application Services Element established in Phase 2.
Design and style Torque = Nominal Torque x Application Service Issue
Step four: Working with the Spider Performance Data Chart 2, select the elastomer materials which finest corresponds for your application.
Stage five: Making use of the Jaw Nominal Rated Torque Chart 3 , locate the appropriate elastomer materials column for your elastomer chosen in Stage four.
Scan down this column for the first entry in which the Torque Value during the acceptable column is higher than or equal to your Layout Torque calculated in Stage three.
Once this worth is found, refer for the corresponding coupling size from the initial column in the Jaw Nominal Rated Torque Chart three .
Refer towards the highest RPM value for this elastomer torque capability to make certain the application necessities are met. If your necessity is not really content at this point, a different kind of coupling might be needed for your application. Please seek advice from Lovejoy engineering for support.
Step 6: Examine the application driver/driven shaft sizes on the highest bore size obtainable to the coupling selected. If coupling bore dimension just isn’t big ample for that shaft diameter, decide on the subsequent largest coupling that could accommodate the driver/driven shaft diameters.
Stage seven: Making use of the UPC amount variety table , obtain the ideal Bore and Keyway sizes required and find the quantity.