Jaw Coupling Variety System

Jaw Sort Coupling Selection Approach
The choice procedure for identifying the correct jaw coupling size and elastomer requires utilizing the charts shown on the following pages. There are 3 elements to be chosen, two hubs and one particular elastomer. When the shaft dimension of the driver and driven with the application are of your exact same diameter, the hubs selected will be the exact same. When shaft diameters differ, hubs selected will vary accordingly.
Information needed ahead of a coupling might be picked:
HP (or KW) and RPM or Torque of driver
Shaft sizes of driver and driven products and corresponding keyways
Application description
Environmental circumstances (i.e. severe temperature, corrosive ailments, room limitations)
Steps In Picking out A Jaw Coupling
Stage one: Figure out the Nominal Torque of one’s application through the use of the next formula:
Nominal Torque = in-lb = (HP x 63025)/RPM
Nm = (KW x 9550)/RPM
Stage 2: Making use of the Application Services Aspects Chart 1 select the service factor which finest corresponds to your application.
Step 3: Calculate the Design and style Torque of your application by multiplying the Nominal Torque calculated in Phase 1 through the Application Services Aspect determined in Phase 2.
Style Torque = Nominal Torque x Application Services Issue
Step 4: Utilizing the Spider Effectiveness Data Chart 2, decide on the elastomer materials which greatest corresponds to your application.
Stage 5: Utilizing the Jaw Nominal Rated Torque Chart three , locate the proper elastomer material column to the elastomer chosen in Step 4.
Scan down this column to your initially entry the place the Torque Worth within the proper column is better than or equal on the Style and design Torque calculated in Stage 3.
The moment this worth is located, refer to your corresponding coupling dimension in the to start with column on the Jaw Nominal Rated Torque Chart three .
Refer on the highest RPM worth for this elastomer torque capability to make sure that the application demands are met. If the requirement isn’t pleased at this time, a different form of coupling may be necessary for the application. Please talk to Lovejoy engineering for help.
Stage 6: Examine the application driver/driven shaft sizes on the greatest bore dimension offered to the coupling selected. If coupling bore size will not be significant enough to the shaft diameter, select the subsequent largest coupling that may accommodate the driver/driven shaft diameters.
Step seven: Working with the UPC amount assortment table , uncover the appropriate Bore and Keyway sizes expected and find the number.


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