Jaw Variety Coupling Variety Procedure
The choice course of action for identifying the right jaw coupling size and elastomer demands utilizing the charts shown around the following pages. There are three components for being selected, two hubs and one elastomer. When the shaft size from the driver and driven of the application are on the same diameter, the hubs picked might be exactly the same. When shaft diameters differ, hubs chosen will differ accordingly.
Information required ahead of a coupling may be selected:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven equipment and corresponding keyways
Application description
Environmental conditions (i.e. severe temperature, corrosive ailments, room limitations)
Methods In Picking out A Jaw Coupling
Stage one: Figure out the Nominal Torque of one’s application by using the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Step 2: Making use of the Application Support Variables Chart one decide on the support factor which greatest corresponds to your application.
Phase three: Determine the Design and style Torque of your application by multiplying the Nominal Torque calculated in Stage one from the Application Support Factor determined in Step two.
Design and style Torque = Nominal Torque x Application Services Element
Stage 4: Utilizing the Spider Overall performance Information Chart 2, choose the elastomer material which greatest corresponds for your application.
Stage 5: Applying the Jaw Nominal Rated Torque Chart 3 , locate the acceptable elastomer materials column for your elastomer picked in Stage 4.
Scan down this column on the to start with entry the place the Torque Worth inside the appropriate column is higher than or equal to the Style Torque calculated in Stage 3.
When this value is located, refer to your corresponding coupling dimension while in the very first column with the Jaw Nominal Rated Torque Chart three .
Refer to the highest RPM value for this elastomer torque capability to ensure that the application needs are met. In the event the necessity is not satisfied at this point, one more sort of coupling may very well be needed to the application. Please consult Lovejoy engineering for help.
Step 6: Assess the application driver/driven shaft sizes to your greatest bore dimension out there about the coupling chosen. If coupling bore dimension isn’t huge sufficient for that shaft diameter, decide on the subsequent greatest coupling which will accommodate the driver/driven shaft diameters.
Stage 7: Using the UPC amount assortment table , find the acceptable Bore and Keyway sizes expected and locate the quantity.