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Jaw Coupling Variety Procedure - cardan coupling
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Jaw Type Coupling Assortment System
The assortment process for identifying the appropriate jaw coupling size and elastomer needs applying the charts proven on the following pages. There are actually three parts to become picked, two hubs and 1 elastomer. When the shaft size of your driver and driven from the application are of the similar diameter, the hubs selected will likely be the same. When shaft diameters differ, hubs picked will vary accordingly.
Info required ahead of a coupling may be chosen:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven equipment and corresponding keyways
Application description
Environmental ailments (i.e. extreme temperature, corrosive circumstances, space limitations)
Ways In Picking out A Jaw Coupling
Step 1: Establish the Nominal Torque of your application by utilizing the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage two: Using the Application Service Variables Chart one pick the service component which greatest corresponds for your application.
Step 3: Determine the Style and design Torque of the application by multiplying the Nominal Torque calculated in Stage 1 by the Application Service Aspect determined in Phase 2.
Layout Torque = Nominal Torque x Application Service Component
Step 4: Utilizing the Spider Performance Information Chart 2, select the elastomer materials which greatest corresponds to your application.
Step five: Making use of the Jaw Nominal Rated Torque Chart 3 , locate the acceptable elastomer material column for your elastomer selected in Phase 4.
Scan down this column on the first entry exactly where the Torque Worth within the appropriate column is greater than or equal for the Style Torque calculated in Step 3.
When this value is found, refer towards the corresponding coupling dimension during the to start with column of the Jaw Nominal Rated Torque Chart 3 .
Refer for the greatest RPM worth for this elastomer torque capability to ensure that the application requirements are met. If your requirement just isn’t content at this point, another style of coupling could be essential to the application. Please seek advice from Lovejoy engineering for support.
Stage 6: Evaluate the application driver/driven shaft sizes to your maximum bore size offered about the coupling chosen. If coupling bore size is not really big enough for that shaft diameter, choose the following greatest coupling that can accommodate the driver/driven shaft diameters.
Stage seven: Applying the UPC quantity variety table , locate the appropriate Bore and Keyway sizes expected and locate the number.