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What is the "Ross Point"
2

thread693-107800

What is the "Ross Point"

What is the "Ross Point"

(OP)
Does anyone have a good definition of the "Ross Point," it pertains to the stress on the eye of a leaf spring.

Thanks, Jack

 

RE: What is the "Ross Point"

You may find it in SAE HS J788, Manual on Design and Application of Leaf Springs

RE: What is the "Ross Point"

The "Ross Point" is the theoretical location for the end of the drag link near to the steering box.  The "Windup Center" of the leaf spring is the ideal location for the axle end of the drag link.  These two points provide a steering geometry with minimum steering effects from the deflection of the leaf springs.  Volvo Truck requires Ross Point checking for their front leaf spring suspensions.  It is not easy to measure or calculate.  I am currently developing an engineering spreadsheet to predict the Ross Point and Windup Center for a leaf spring.  My company has a machine to do this work, but it is very crude and requres an actual spring sample.  I am in the truck suspension business.

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