Jaw Variety Coupling Selection Approach
The choice approach for identifying the appropriate jaw coupling dimension and elastomer requires employing the charts shown over the following pages. There are actually 3 components to get chosen, two hubs and one particular elastomer. When the shaft dimension with the driver and driven on the application are from the similar diameter, the hubs selected will likely be precisely the same. When shaft diameters differ, hubs picked will differ accordingly.
Data necessary in advance of a coupling is often chosen:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven products and corresponding keyways
Application description
Environmental disorders (i.e. intense temperature, corrosive ailments, space limitations)
Measures In Choosing A Jaw Coupling
Stage one: Identify the Nominal Torque of your application by using the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Phase two: Using the Application Services Components Chart 1 pick the services aspect which most effective corresponds to your application.
Step 3: Calculate the Style and design Torque of the application by multiplying the Nominal Torque calculated in Phase 1 from the Application Services Component determined in Step two.
Design and style Torque = Nominal Torque x Application Support Element
Step four: Applying the Spider Overall performance Information Chart 2， decide on the elastomer material which greatest corresponds for your application.
Step five: Employing the Jaw Nominal Rated Torque Chart 3 , find the proper elastomer material column to the elastomer selected in Phase four.
Scan down this column towards the to start with entry where the Torque Worth within the suitable column is better than or equal to the Design and style Torque calculated in Stage 3.
When this worth is located, refer on the corresponding coupling size while in the first column of your Jaw Nominal Rated Torque Chart 3 .
Refer for the maximum RPM worth for this elastomer torque capability to be sure the application demands are met. When the requirement just isn’t happy at this point, a further type of coupling may be expected for that application. Please talk to Lovejoy engineering for assistance.
Stage 6: Evaluate the application driver/driven shaft sizes on the maximum bore dimension offered around the coupling selected. If coupling bore dimension isn’t big adequate for your shaft diameter, select the following greatest coupling that should accommodate the driver/driven shaft diameters.
Stage seven: Applying the UPC quantity assortment table , locate the ideal Bore and Keyway sizes needed and find the number.