Jaw Style Coupling Choice System
The assortment procedure for figuring out the appropriate jaw coupling size and elastomer involves employing the charts shown about the following pages. You’ll find three parts to be picked, two hubs and one particular elastomer. When the shaft dimension of the driver and driven of your application are from the exact same diameter, the hubs chosen will be the identical. When shaft diameters differ, hubs selected will vary accordingly.
Information and facts necessary just before a coupling may be chosen:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven products and corresponding keyways
Application description
Environmental disorders (i.e. intense temperature, corrosive situations, space limitations)
Measures In Picking A Jaw Coupling
Phase one: Determine the Nominal Torque of your application by using the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage two: Applying the Application Service Components Chart one decide on the service aspect which greatest corresponds to your application.
Phase three: Determine the Design and style Torque of your application by multiplying the Nominal Torque calculated in Step one by the Application Service Element determined in Step 2.
Style and design Torque = Nominal Torque x Application Support Aspect
Stage four: Making use of the Spider Functionality Data Chart 2， decide on the elastomer material which ideal corresponds to your application.
Stage 5: Employing the Jaw Nominal Rated Torque Chart 3 , find the suitable elastomer materials column to the elastomer chosen in Phase 4.
Scan down this column for the 1st entry the place the Torque Worth within the appropriate column is better than or equal on the Design and style Torque calculated in Stage three.
Once this worth is located, refer towards the corresponding coupling size inside the very first column of the Jaw Nominal Rated Torque Chart 3 .
Refer for the highest RPM value for this elastomer torque capability to make sure the application needs are met. In the event the requirement will not be happy at this time, a further sort of coupling might be expected for your application. Please seek the advice of Lovejoy engineering for help.
Phase 6: Examine the application driver/driven shaft sizes to the maximum bore dimension out there on the coupling chosen. If coupling bore size is just not large sufficient to the shaft diameter, choose the following largest coupling that may accommodate the driver/driven shaft diameters.
Stage 7: Working with the UPC variety selection table , obtain the appropriate Bore and Keyway sizes essential and find the variety.