Jaw Sort Coupling Variety Approach
The assortment system for determining the right jaw coupling size and elastomer requires applying the charts shown within the following pages. You will discover three parts to be chosen, two hubs and 1 elastomer. When the shaft size with the driver and driven of the application are from the exact same diameter, the hubs selected might be the exact same. When shaft diameters vary, hubs picked will differ accordingly.
Details needed ahead of a coupling may be chosen:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven tools and corresponding keyways
Application description
Environmental disorders (i.e. excessive temperature, corrosive disorders, room limitations)
Actions In Picking A Jaw Coupling
Stage 1: Ascertain the Nominal Torque of the application by using the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Phase 2: Using the Application Support Factors Chart 1 choose the service factor which greatest corresponds for your application.
Stage three: Calculate the Layout Torque of your application by multiplying the Nominal Torque calculated in Phase one through the Application Service Component determined in Step 2.
Style Torque = Nominal Torque x Application Service Element
Phase 4: Utilizing the Spider Overall performance Data Chart 2, decide on the elastomer materials which greatest corresponds to your application.
Step 5: Employing the Jaw Nominal Rated Torque Chart three , locate the appropriate elastomer materials column for the elastomer picked in Step four.
Scan down this column to your first entry exactly where the Torque Worth during the appropriate column is better than or equal to the Style and design Torque calculated in Stage three.
When this value is located, refer to your corresponding coupling size in the to start with column from the Jaw Nominal Rated Torque Chart 3 .
Refer to the maximum RPM worth for this elastomer torque capability to guarantee that the application demands are met. If your requirement is just not happy at this time, another kind of coupling may be required for that application. Please seek the advice of Lovejoy engineering for assistance.
Stage 6: Examine the application driver/driven shaft sizes on the highest bore dimension available on the coupling chosen. If coupling bore dimension will not be big ample for your shaft diameter, pick the following biggest coupling that should accommodate the driver/driven shaft diameters.
Phase seven: Making use of the UPC quantity choice table , discover the suitable Bore and Keyway sizes required and find the number.