Jaw Coupling Choice Process

Jaw Sort Coupling Choice Process
The selection approach for figuring out the correct jaw coupling size and elastomer necessitates applying the charts proven on the following pages. You will discover 3 components to become picked, two hubs and one particular elastomer. When the shaft dimension of the driver and driven of your application are in the similar diameter, the hubs chosen will likely be the same. When shaft diameters vary, hubs selected will differ accordingly.
Information and facts essential prior to a coupling can be selected:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven products and corresponding keyways
Application description
Environmental ailments (i.e. intense temperature, corrosive situations, room limitations)
Actions In Deciding on A Jaw Coupling
Step one: Determine the Nominal Torque of your application by using the following formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Phase 2: Utilizing the Application Services Elements Chart one pick the services issue which best corresponds to your application.
Stage three: Determine the Design Torque of the application by multiplying the Nominal Torque calculated in Stage one by the Application Services Component established in Phase 2.
Style Torque = Nominal Torque x Application Service Aspect
Stage 4: Applying the Spider Performance Information Chart 2, select the elastomer materials which very best corresponds to your application.
Step 5: Employing the Jaw Nominal Rated Torque Chart 3 , find the proper elastomer material column for the elastomer chosen in Stage 4.
Scan down this column for the initially entry exactly where the Torque Value in the ideal column is higher than or equal on the Design Torque calculated in Step three.
As soon as this value is located, refer for the corresponding coupling size within the initial column on the Jaw Nominal Rated Torque Chart 3 .
Refer to your optimum RPM worth for this elastomer torque capability to guarantee the application requirements are met. If the requirement is not really content at this point, an additional type of coupling can be required for your application. Please check with Lovejoy engineering for assistance.
Step six: Examine the application driver/driven shaft sizes on the highest bore dimension readily available within the coupling selected. If coupling bore size is not really big enough to the shaft diameter, pick the following biggest coupling that should accommodate the driver/driven shaft diameters.
Step 7: Working with the UPC quantity variety table , obtain the proper Bore and Keyway sizes essential and find the number.


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