Jaw Style Coupling Assortment Course of action
The choice approach for figuring out the proper jaw coupling dimension and elastomer involves utilizing the charts proven over the following pages. There are three parts to get picked, two hubs and 1 elastomer. Once the shaft size in the driver and driven of your application are on the similar diameter, the hubs chosen might be exactly the same. When shaft diameters vary, hubs picked will vary accordingly.
Info necessary just before a coupling is usually chosen:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven gear and corresponding keyways
Application description
Environmental circumstances (i.e. intense temperature, corrosive ailments, space limitations)
Measures In Choosing A Jaw Coupling
Stage one: Ascertain the Nominal Torque of one’s application by utilizing the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage 2: Employing the Application Services Factors Chart 1 select the service aspect which finest corresponds for your application.
Step three: Determine the Style and design Torque of your application by multiplying the Nominal Torque calculated in Step 1 by the Application Services Component established in Stage 2.
Design Torque = Nominal Torque x Application Services Factor
Step 4: Making use of the Spider Performance Data Chart 2， decide on the elastomer materials which very best corresponds to your application.
Phase 5: Employing the Jaw Nominal Rated Torque Chart 3 , find the appropriate elastomer materials column for the elastomer selected in Step 4.
Scan down this column to the 1st entry exactly where the Torque Worth while in the proper column is better than or equal to the Style Torque calculated in Stage three.
After this value is located, refer on the corresponding coupling dimension within the very first column with the Jaw Nominal Rated Torque Chart three .
Refer on the optimum RPM value for this elastomer torque capability to make sure that the application needs are met. If the requirement just isn’t pleased at this point, another sort of coupling might be needed for the application. Please check with Lovejoy engineering for assistance.
Phase six: Examine the application driver/driven shaft sizes to the highest bore size accessible within the coupling picked. If coupling bore size just isn’t large enough to the shaft diameter, decide on the next biggest coupling that should accommodate the driver/driven shaft diameters.
Stage 7: Making use of the UPC amount choice table , discover the appropriate Bore and Keyway sizes essential and locate the variety.