Jaw Type Coupling Variety Process
The variety approach for determining the proper jaw coupling size and elastomer demands using the charts shown about the following pages. You will find three parts to get chosen, two hubs and a single elastomer. Once the shaft size with the driver and driven in the application are of your exact same diameter, the hubs chosen will probably be the same. When shaft diameters differ, hubs chosen will differ accordingly.
Facts required 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 ailments, room limitations)
Ways In Choosing A Jaw Coupling
Step one: Identify the Nominal Torque of one’s application by utilizing the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Step two: Employing the Application Services Aspects Chart 1 pick the service factor which very best corresponds for your application.
Stage 3: Calculate the Design and style Torque of one’s application by multiplying the Nominal Torque calculated in Stage one from the Application Support Issue established in Stage two.
Design and style Torque = Nominal Torque x Application Services Issue
Phase four: Employing the Spider Overall performance Data Chart 2, pick the elastomer materials which very best corresponds for your application.
Step 5: Utilizing the Jaw Nominal Rated Torque Chart 3 , find the proper elastomer materials column for your elastomer picked in Phase 4.
Scan down this column for the first entry where the Torque Value within the suitable column is higher than or equal to the Design Torque calculated in Step 3.
As soon as this worth is located, refer for the corresponding coupling dimension within the initial column of the Jaw Nominal Rated Torque Chart three .
Refer on the greatest RPM worth for this elastomer torque capability to guarantee the application needs are met. In case the requirement just isn’t happy at this time, a different variety of coupling can be required for your application. Please seek the advice of Lovejoy engineering for assistance.
Stage six: Compare the application driver/driven shaft sizes on the highest bore dimension accessible about the coupling picked. If coupling bore dimension just isn’t significant sufficient for your shaft diameter, decide on the following greatest coupling that may accommodate the driver/driven shaft diameters.
Stage 7: Employing the UPC variety variety table , find the appropriate Bore and Keyway sizes necessary and find the quantity.