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Jaw Style Coupling Variety Process
The choice approach for figuring out the correct jaw coupling size and elastomer calls for making use of the charts proven about the following pages. You will discover 3 parts to be chosen, two hubs and 1 elastomer. Once the shaft dimension of the driver and driven in the application are of the very same diameter, the hubs picked is going to be precisely the same. When shaft diameters differ, hubs selected will differ accordingly.
Facts needed just before a coupling might be chosen:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven gear and corresponding keyways
Application description
Environmental circumstances (i.e. intense temperature, corrosive disorders, area limitations)
Actions In Picking A Jaw Coupling
Stage one: Decide the Nominal Torque of the application by utilizing the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Phase two: Making use of the Application Support Components Chart one decide on the support issue which ideal corresponds to your application.
Step three: Calculate the Style Torque of one’s application by multiplying the Nominal Torque calculated in Step one by the Application Services Component established in Stage 2.
Style and design Torque = Nominal Torque x Application Support Aspect
Stage 4: Utilizing the Spider Performance Data Chart 2, choose the elastomer materials which best corresponds to your application.
Stage five: Making use of the Jaw Nominal Rated Torque Chart 3 , locate the acceptable elastomer material column for your elastomer selected in Step four.
Scan down this column to your to start with entry wherever the Torque Worth from the proper column is better than or equal towards the Design and style Torque calculated in Stage three.
The moment this worth is found, refer towards the corresponding coupling dimension inside the first column with the Jaw Nominal Rated Torque Chart three .
Refer towards the highest RPM worth for this elastomer torque capability to ensure that the application necessities are met. Should the necessity just isn’t content at this point, yet another variety of coupling could possibly be demanded to the application. Please check with Lovejoy engineering for assistance.
Phase six: Review the application driver/driven shaft sizes to the maximum bore dimension out there within the coupling selected. If coupling bore size just isn’t substantial enough for your shaft diameter, select the following greatest coupling that could accommodate the driver/driven shaft diameters.
Step 7: Applying the UPC quantity choice table , uncover the proper Bore and Keyway sizes required and locate the number.