Jaw Style Coupling Variety System
The assortment system for determining the correct jaw coupling dimension and elastomer necessitates applying the charts shown about the following pages. You’ll find three components for being picked, two hubs and one elastomer. When the shaft size with the driver and driven on the application are on the very same diameter, the hubs picked will likely be the identical. When shaft diameters vary, hubs selected will vary accordingly.
Data important ahead of a coupling is often chosen:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven equipment and corresponding keyways
Application description
Environmental problems (i.e. extreme temperature, corrosive conditions, room limitations)
Methods In Picking out A Jaw Coupling
Phase one: Identify the Nominal Torque of your application through the use of the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage 2: Applying the Application Service Aspects Chart one choose the support aspect which finest corresponds for your application.
Phase three: Determine the Style and design Torque of the application by multiplying the Nominal Torque calculated in Step one by the Application Service Aspect determined in Phase two.
Style Torque = Nominal Torque x Application Service Element
Phase four: Using the Spider Overall performance Data Chart 2， select the elastomer material which ideal corresponds to your application.
Step five: Applying the Jaw Nominal Rated Torque Chart three , locate the acceptable elastomer materials column for that elastomer chosen in Phase four.
Scan down this column to your to start with entry where the Torque Worth within the ideal column is higher than or equal to the Design Torque calculated in Phase 3.
Once this worth is located, refer towards the corresponding coupling size in the initially column on the Jaw Nominal Rated Torque Chart 3 .
Refer for the highest RPM worth for this elastomer torque capability to be sure the application necessities are met. If your requirement is not content at this time, an additional kind of coupling could possibly be required to the application. Please check with Lovejoy engineering for help.
Phase six: Compare the application driver/driven shaft sizes for the highest bore dimension out there to the coupling chosen. If coupling bore dimension is not huge ample to the shaft diameter, choose the next largest coupling which will accommodate the driver/driven shaft diameters.
Step 7: Using the UPC variety selection table , uncover the ideal Bore and Keyway sizes demanded and locate the quantity.