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The European Rack Shift Coefficient 'X' for Americans - July/August 1993

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Archive > 1993 > July/August 1993 > The European Rack Shift Coefficient 'X' for Americans

The article "The European Rack Shift Coefficient 'X' for Americans" appeared in the July/August 1993 issue of Gear Technology.

Summary
The use of dimensionless factors to describe gear tooth geometry seems to have a strong appeal to gear engineers. The stress factors I and J, for instance, are well established in AGMA literature. The use of the rack shift coefficient "x" to describe nonstandard gear proportions is common in Europe, but is not as commonly used in the United States. When it is encountered in the European literature or in the operating manuals for imported machine tools, it can be a source of confusion to the American engineer.

Keywords
rack shift coefficient, rack shift, X factor, design, basics, gear fundamentals

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