This model establishes the preliminary design specifications. An inappropriate decision made at this point will be evident when Model TK 60-610 is run at the extreme conditions.
Previous designs can provide a library of excellent starting points.
This can speed the design process and eliminate some design iterations. Starting with the input value for the nominal center distance from TK 60-180, The model used to determine the Minimum, Maximum, and Nominal Effective Center Distance. The Minimum and Maximum values will be used to check the extreme operating conditions. The Nominal Center Distance. The minimum profile contact ratio is the major issue.