Jaw Style Coupling Variety Process
The selection process for identifying the correct jaw coupling size and elastomer calls for utilizing the charts shown on the following pages. You’ll find three components to become chosen, two hubs and one elastomer. When the shaft dimension on the driver and driven from the application are on the similar diameter, the hubs selected might be the same. When shaft diameters vary, hubs picked will differ accordingly.
Info necessary before a coupling could be selected:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven tools and corresponding keyways
Application description
Environmental conditions (i.e. severe temperature, corrosive ailments, room limitations)
Ways In Picking out A Jaw Coupling
Step one: Ascertain the Nominal Torque of the application by using the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage two: Utilizing the Application Services Things Chart one pick the service element which greatest corresponds to your application.
Stage 3: Calculate the Style Torque of the application by multiplying the Nominal Torque calculated in Step 1 by the Application Services Element determined in Phase 2.
Style and design Torque = Nominal Torque x Application Services Aspect
Step four: Utilizing the Spider Overall performance Information Chart 2, decide on the elastomer material which greatest corresponds to your application.
Phase 5: Applying the Jaw Nominal Rated Torque Chart three , locate the appropriate elastomer material column for the elastomer selected in Phase 4.
Scan down this column for the initial entry the place the Torque Worth in the proper column is better than or equal to your Layout Torque calculated in Phase 3.
When this worth is found, refer to your corresponding coupling size within the to start with column of your Jaw Nominal Rated Torque Chart three .
Refer to your greatest RPM value for this elastomer torque capability to guarantee the application necessities are met. If your necessity will not be happy at this point, one more type of coupling could be necessary to the application. Please check with Lovejoy engineering for support.
Stage 6: Evaluate the application driver/driven shaft sizes towards the greatest bore dimension offered on the coupling chosen. If coupling bore dimension is not really significant adequate for that shaft diameter, choose the next greatest coupling that should accommodate the driver/driven shaft diameters.
Step seven: Using the UPC amount selection table , uncover the appropriate Bore and Keyway sizes essential and find the amount.