Jaw Style Coupling Variety Procedure
The variety procedure for determining the appropriate jaw coupling size and elastomer calls for making use of the charts proven to the following pages. There are 3 components to get picked, two hubs and one elastomer. When the shaft dimension of the driver and driven with the application are of the identical diameter, the hubs chosen are going to be the exact same. When shaft diameters vary, hubs picked will differ accordingly.
Info necessary ahead of a coupling is often picked:
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 situations, area limitations)
Actions In Picking A Jaw Coupling
Stage one: Ascertain the Nominal Torque of the application through the use of the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage 2: Using the Application Support Components Chart 1 pick the support factor which most effective corresponds for your application.
Phase 3: Calculate the Style and design Torque of your application by multiplying the Nominal Torque calculated in Step one by the Application Support Aspect established in Step two.
Style and design Torque = Nominal Torque x Application Support Factor
Phase 4: Applying the Spider Performance Data Chart 2, select the elastomer material which finest corresponds for your application.
Step 5: Utilizing the Jaw Nominal Rated Torque Chart three , find the suitable elastomer material column for that elastomer selected in Stage four.
Scan down this column towards the to start with entry wherever the Torque Worth during the ideal column is higher than or equal on the Style and design Torque calculated in Step three.
After this value is found, refer to your corresponding coupling dimension within the initially column in the Jaw Nominal Rated Torque Chart 3 .
Refer to your greatest RPM value for this elastomer torque capability to guarantee the application requirements are met. When the necessity is not really pleased at this time, an additional sort of coupling could possibly be required to the application. Please consult Lovejoy engineering for help.
Phase 6: Review the application driver/driven shaft sizes to your greatest bore size available about the coupling selected. If coupling bore size is just not huge adequate for that shaft diameter, select the following biggest coupling that may accommodate the driver/driven shaft diameters.
Step seven: Utilizing the UPC amount selection table , locate the acceptable Bore and Keyway sizes demanded and find the quantity.