Jaw Sort Coupling Variety Method
The assortment course of action for determining the right jaw coupling size and elastomer necessitates applying the charts shown within the following pages. You will discover three parts to be chosen, two hubs and 1 elastomer. Once the shaft size on the driver and driven of the application are of the exact same diameter, the hubs selected might be the exact same. When shaft diameters vary, hubs picked will vary 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 gear and corresponding keyways
Application description
Environmental ailments (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 Things Chart 1 choose the support factor which greatest corresponds for your application.
Step three: Calculate the Layout Torque of your application by multiplying the Nominal Torque calculated in Phase one through the Application Service Component determined in Phase 2.
Style Torque = Nominal Torque x Application Service Element
Phase 4: Utilizing the Spider Performance Data Chart 2, decide on the elastomer materials which very best corresponds to your application.
Phase 5: Making use of the Jaw Nominal Rated Torque Chart three , locate the appropriate elastomer materials column for that elastomer picked in Phase four.
Scan down this column to your to start with entry exactly where the Torque Worth from the appropriate column is better than or equal to your Style and design Torque calculated in Step three.
When this value is located, refer to your corresponding coupling size in the to start with column of the Jaw Nominal Rated Torque Chart 3 .
Refer to your greatest RPM worth for this elastomer torque capability to be sure that the application needs are met. If your requirement is just not satisfied at this time, another kind of coupling may be demanded for that application. Please consult Lovejoy engineering for assistance.
Stage 6: Examine the application driver/driven shaft sizes for the highest bore dimension available on the coupling chosen. If coupling bore dimension will not be large ample for your shaft diameter, pick the next biggest coupling that could accommodate the driver/driven shaft diameters.
Phase seven: Utilizing the UPC number choice table , discover the suitable Bore and Keyway sizes required and find the number.