Jaw Kind Coupling Variety Procedure
The choice course of action for determining the right jaw coupling size and elastomer involves working with the charts shown about the following pages. There are 3 parts to be chosen, two hubs and a single elastomer. When the shaft dimension of the driver and driven in the application are in the similar diameter, the hubs picked is going to be the exact same. When shaft diameters differ, hubs selected will differ accordingly.
Data important in advance of a coupling is often picked:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven gear and corresponding keyways
Application description
Environmental situations (i.e. severe temperature, corrosive circumstances, area limitations)
Measures In Deciding on A Jaw Coupling
Phase one: Ascertain the Nominal Torque of your application by utilizing the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Step two: Working with the Application Service Components Chart one select the support issue which most effective corresponds to your application.
Stage three: Calculate the Style Torque of the application by multiplying the Nominal Torque calculated in Step one by the Application Services Factor established in Phase two.
Design Torque = Nominal Torque x Application Support Aspect
Phase 4: Utilizing the Spider Performance Data Chart 2, pick the elastomer materials which best corresponds to your application.
Step five: Working with the Jaw Nominal Rated Torque Chart 3 , locate the ideal elastomer material column for your elastomer chosen in Stage four.
Scan down this column to your to start with entry wherever the Torque Worth while in the acceptable column is better than or equal towards the Layout Torque calculated in Phase 3.
The moment this worth is found, refer towards the corresponding coupling dimension inside the very first column of the Jaw Nominal Rated Torque Chart three .
Refer to the greatest RPM worth for this elastomer torque capability to ensure that the application prerequisites are met. Should the necessity will not be satisfied at this point, one more kind of coupling could possibly be required to the application. Please talk to Lovejoy engineering for assistance.
Phase six: Assess the application driver/driven shaft sizes to the maximum bore dimension accessible within the coupling chosen. If coupling bore size will not be large enough for your shaft diameter, choose the following largest coupling that could accommodate the driver/driven shaft diameters.
Step seven: Utilizing the UPC quantity variety table , obtain the acceptable Bore and Keyway sizes needed and locate the number.