Jaw Coupling Selection Course of action

Jaw Type Coupling Selection Process
The variety course of action for identifying the correct jaw coupling dimension and elastomer calls for applying the charts shown on the following pages. There are actually three parts for being selected, two hubs and one particular elastomer. Once the shaft size of your driver and driven of your application are from the same diameter, the hubs picked will be precisely the same. When shaft diameters vary, hubs selected will differ accordingly.
Data necessary just before a coupling can 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. excessive temperature, corrosive conditions, room limitations)
Actions In Picking out A Jaw Coupling
Stage 1: Figure out 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
Phase 2: Making use of the Application Services Variables Chart 1 decide on the services element which best corresponds to your application.
Stage three: Determine the Design Torque of your application by multiplying the Nominal Torque calculated in Step 1 by the Application Support Factor determined in Stage two.
Style and design Torque = Nominal Torque x Application Service Factor
Step four: Making use of the Spider Performance Information Chart 2， pick the elastomer material which best corresponds to your application.
Step 5: Utilizing the Jaw Nominal Rated Torque Chart three , locate the appropriate elastomer materials column for that elastomer chosen in Stage four.
Scan down this column towards the initially entry exactly where the Torque Worth within the proper column is greater than or equal to the Design Torque calculated in Stage 3.
After this value is found, refer on the corresponding coupling dimension during the initial column from the Jaw Nominal Rated Torque Chart three .
Refer on the greatest RPM value for this elastomer torque capability to guarantee the application necessities are met. In the event the necessity is not really satisfied at this time, one more sort of coupling could be necessary for your application. Please seek the advice of Lovejoy engineering for assistance.
Step six: Evaluate the application driver/driven shaft sizes to the optimum bore size obtainable around the coupling picked. If coupling bore size is not really massive adequate for your shaft diameter, pick the following biggest coupling that may accommodate the driver/driven shaft diameters.
Phase 7: Making use of the UPC number assortment table , locate the ideal Bore and Keyway sizes needed and locate the number.