Jaw Style Coupling Variety Course of action
The selection procedure for determining the right jaw coupling dimension and elastomer calls for employing the charts proven within the following pages. You’ll find 3 parts to become chosen, two hubs and one particular elastomer. Once the shaft dimension in the driver and driven of your application are on the same diameter, the hubs selected might be the identical. When shaft diameters vary, hubs picked will vary accordingly.
Facts vital ahead of a coupling might be chosen:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven gear and corresponding keyways
Application description
Environmental disorders (i.e. extreme temperature, corrosive circumstances, room limitations)
Actions In Picking out A Jaw Coupling
Step one: Identify the Nominal Torque of one’s application by utilizing the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Phase two: Utilizing the Application Support Factors Chart 1 select the services issue which finest corresponds to your application.
Step 3: Determine the Design and style Torque of your application by multiplying the Nominal Torque calculated in Step one by the Application Services Element determined in Phase two.
Style and design Torque = Nominal Torque x Application Support Component
Phase four: Working with the Spider Overall performance Information Chart 2, pick the elastomer materials which most effective corresponds for your application.
Phase 5: Working with the Jaw Nominal Rated Torque Chart 3 , locate the appropriate elastomer materials column for the elastomer selected in Phase 4.
Scan down this column towards the to start with entry wherever the Torque Worth inside the ideal column is higher than or equal on the Style and design Torque calculated in Stage three.
After this worth is located, refer to your corresponding coupling dimension from the first column of the Jaw Nominal Rated Torque Chart three .
Refer to your optimum RPM worth for this elastomer torque capability to make certain the application necessities are met. If the requirement just isn’t pleased at this time, a different kind of coupling could possibly be demanded for your application. Please check with Lovejoy engineering for help.
Stage 6: Evaluate the application driver/driven shaft sizes towards the maximum bore size out there over the coupling selected. If coupling bore dimension is not really substantial enough for the shaft diameter, choose the next biggest coupling that should accommodate the driver/driven shaft diameters.
Phase 7: Using the UPC number variety table , find the appropriate Bore and Keyway sizes necessary and find the number.