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Jaw Variety Coupling Variety Process
The selection system for figuring out the correct jaw coupling dimension and elastomer needs employing the charts shown within the following pages. You can find 3 elements to become picked, two hubs and 1 elastomer. Once the shaft size of your driver and driven in the application are of the similar diameter, the hubs chosen will likely be precisely the same. When shaft diameters vary, hubs chosen will vary accordingly.
Information and facts needed just before a coupling may be selected:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven products and corresponding keyways
Application description
Environmental conditions (i.e. extreme temperature, corrosive ailments, space limitations)
Techniques In Choosing A Jaw Coupling
Stage one: Establish 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
Phase 2: Working with the Application Service Factors Chart 1 choose the services issue which best corresponds to your application.
Step three: Calculate the Style and design Torque of your application by multiplying the Nominal Torque calculated in Phase one from the Application Services Aspect established in Phase two.
Layout Torque = Nominal Torque x Application Support Issue
Stage four: Utilizing the Spider Functionality Data Chart 2, pick the elastomer materials which most effective corresponds for your application.
Step five: Utilizing the Jaw Nominal Rated Torque Chart 3 , find the acceptable elastomer material column for that elastomer picked in Step 4.
Scan down this column to your to start with entry the place the Torque Value during the suitable column is higher than or equal to your Design and style Torque calculated in Phase three.
After this value is found, refer to your corresponding coupling dimension in the first column in the Jaw Nominal Rated Torque Chart three .
Refer towards the optimum RPM value for this elastomer torque capability to be sure the application prerequisites are met. In the event the requirement is just not content at this time, an additional form of coupling may very well be needed to the application. Please seek advice from Lovejoy engineering for help.
Phase 6: Compare the application driver/driven shaft sizes to the maximum bore dimension readily available over the coupling chosen. If coupling bore dimension will not be large enough for the shaft diameter, select the following greatest coupling that may accommodate the driver/driven shaft diameters.
Stage seven: Using the UPC quantity assortment table , find the suitable Bore and Keyway sizes essential and find the number.