Jaw Type Coupling Variety Course of action
The selection approach for identifying the right jaw coupling size and elastomer needs applying the charts shown about the following pages. You’ll find 3 elements to get chosen, two hubs and one particular elastomer. Once the shaft dimension of the driver and driven in the application are with the similar diameter, the hubs picked will be the identical. When shaft diameters differ, hubs selected will differ accordingly.
Facts important before a coupling may be selected:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven tools and corresponding keyways
Application description
Environmental problems (i.e. severe temperature, corrosive problems, room limitations)
Measures In Picking A Jaw Coupling
Phase 1: Establish the Nominal Torque of one’s application through the use of the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Phase two: Applying the Application Services Factors Chart 1 decide on the services component which finest corresponds for your application.
Phase 3: Determine the Layout Torque of one’s application by multiplying the Nominal Torque calculated in Stage one by the Application Services Component determined in Phase 2.
Layout Torque = Nominal Torque x Application Support Issue
Phase four: Applying the Spider Effectiveness Data Chart 2, decide on the elastomer material which very best corresponds to your application.
Stage five: Working with the Jaw Nominal Rated Torque Chart 3 , locate the proper elastomer materials column for your elastomer selected in Stage four.
Scan down this column to the very first entry the place the Torque Value in the ideal column is better than or equal to your Design Torque calculated in Phase three.
After this value is found, refer for the corresponding coupling dimension during the to start with column of your Jaw Nominal Rated Torque Chart 3 .
Refer to your optimum RPM value for this elastomer torque capability to ensure the application specifications are met. If the necessity is not happy at this point, another style of coupling could possibly be required for your application. Please check with Lovejoy engineering for support.
Stage six: Assess the application driver/driven shaft sizes on the optimum bore size out there over the coupling selected. If coupling bore size is just not large sufficient to the shaft diameter, pick the subsequent greatest coupling that will accommodate the driver/driven shaft diameters.
Stage seven: Working with the UPC variety assortment table , locate the acceptable Bore and Keyway sizes required and locate the variety.