Jaw Kind Coupling Selection Process
The selection process for identifying the proper jaw coupling size and elastomer needs applying the charts proven around the following pages. There are three parts to become selected, two hubs and a single elastomer. Once the shaft size of your driver and driven in the application are from the same diameter, the hubs selected will likely be the same. When shaft diameters differ, hubs picked will vary accordingly.
Details needed in advance of a coupling could be picked:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven gear and corresponding keyways
Application description
Environmental ailments (i.e. extreme temperature, corrosive situations, space limitations)
Steps In Picking out A Jaw Coupling
Stage 1: Ascertain the Nominal Torque of one’s application by utilizing the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage two: Utilizing the Application Service Variables Chart one decide on the service component which ideal corresponds for your application.
Stage three: Determine the Design Torque of the application by multiplying the Nominal Torque calculated in Stage 1 from the Application Services Element determined in Step 2.
Layout Torque = Nominal Torque x Application Service Factor
Step 4: Making use of the Spider Overall performance Information Chart 2， choose the elastomer materials which ideal corresponds for your application.
Step five: Employing the Jaw Nominal Rated Torque Chart 3 , find the ideal elastomer material column for your elastomer selected in Phase 4.
Scan down this column to your first entry in which the Torque Value inside the appropriate column is greater than or equal on the Design and style Torque calculated in Stage 3.
After this worth is located, refer for the corresponding coupling dimension in the to start with column from the Jaw Nominal Rated Torque Chart 3 .
Refer for the greatest RPM worth for this elastomer torque capability to ensure that the application specifications are met. If your requirement just isn’t content at this point, another variety of coupling could possibly be expected to the application. Please check with Lovejoy engineering for support.
Stage 6: Examine the application driver/driven shaft sizes to the optimum bore size offered to the coupling picked. If coupling bore dimension is not huge enough for that shaft diameter, pick the following largest coupling that may accommodate the driver/driven shaft diameters.
Stage seven: Using the UPC amount assortment table , uncover the suitable Bore and Keyway sizes expected and locate the number.