Jaw Type Coupling Choice Course of action
The variety course of action for determining the proper jaw coupling dimension and elastomer involves utilizing the charts proven to the following pages. There are actually 3 elements for being chosen, two hubs and a single elastomer. Once the 
shaft size from the driver and driven in the application are of your same diameter, the hubs selected will likely be the identical. When shaft diameters vary, hubs chosen will vary accordingly.
Info necessary ahead of a coupling could be chosen:
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 ailments, room limitations)
Measures In Deciding on A Jaw Coupling
Step 1: Establish the Nominal Torque of the application by using the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Phase two: Using the Application Services Things Chart 1 pick the services component which greatest corresponds for your application.
Stage three: Determine the Style and design Torque of your application by multiplying the Nominal Torque calculated in Stage one through the Application Support Factor established in Stage two.
Design Torque = Nominal Torque x Application Services Issue
Step 4: Using the Spider Functionality Information Chart 2， pick the elastomer materials which finest corresponds to your application.
Stage five: Applying the Jaw Nominal Rated Torque Chart 3 , locate the acceptable elastomer materials column to the elastomer chosen in Phase four.
Scan down this column to the first entry the place the Torque Worth during the acceptable column is higher than or equal to your Style and design Torque calculated in Phase three.
When this value is found, refer to the corresponding coupling size during the initial column of your Jaw Nominal Rated Torque Chart 3 .
Refer on the greatest RPM worth for this elastomer torque capability to be sure the application prerequisites are met. If your requirement is not really satisfied at this point, an additional sort of coupling can be expected for the application. Please consult Lovejoy engineering for help.
Phase 6: Compare the application driver/driven shaft sizes towards the greatest bore size obtainable about the coupling chosen. If coupling bore size is not really significant ample for that shaft diameter, pick the following greatest coupling which will accommodate the driver/driven shaft diameters.
Phase seven: Working with the UPC variety assortment table , come across the suitable Bore and Keyway sizes demanded and locate the number.
