Jaw Sort Coupling Selection Method
The selection procedure for identifying the proper jaw coupling size and elastomer demands employing the charts proven on the following pages. You’ll find 3 parts for being picked, two hubs and 1 elastomer. Once the shaft dimension with the driver and driven of your application are in the exact same diameter, the hubs picked are going to be the identical. When shaft diameters vary, hubs picked will differ accordingly.
Information and facts needed ahead of a coupling is often picked:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven products and corresponding keyways
Application description
Environmental circumstances (i.e. intense temperature, corrosive situations, space limitations)
Actions In Choosing A Jaw Coupling
Stage one: Ascertain the Nominal Torque of one’s application by using the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Step two: Employing the Application Services Factors Chart one pick the support component which ideal corresponds for your application.
Step 3: Determine the Style and design Torque of your application by multiplying the Nominal Torque calculated in Phase 1 through the Application Service Element determined in Stage two.
Layout Torque = Nominal Torque x Application Support Issue
Step four: Applying the Spider Performance Data Chart 2， select the elastomer materials which most effective corresponds to your application.
Step 5: 
Working with the Jaw Nominal Rated Torque Chart three , locate the appropriate elastomer materials column for that elastomer selected in Stage 4.
Scan down this column to your initially entry the place the Torque Worth during the proper column is better than or equal to your Design Torque calculated in Stage three.
The moment this worth is found, refer on the corresponding coupling size from the initial column from the Jaw Nominal Rated Torque Chart three .
Refer on the maximum RPM worth for this elastomer torque capability to be sure the application requirements are met. If your necessity is just not pleased at this point, an additional form of coupling may be necessary for the application. Please seek advice from Lovejoy engineering for support.
Step six: Assess the application driver/driven shaft sizes on the maximum bore dimension obtainable on the coupling selected. If coupling bore size just isn’t massive ample for that shaft diameter, choose the following biggest coupling that should accommodate the driver/driven shaft diameters.
Stage 7: Making use of the UPC number selection table , uncover the acceptable Bore and Keyway sizes essential and locate the number.
