: Verifies the accuracy of the alignment of the teeth parallel to the axis of rotation. High Accuracy Group (Grades A2 to A5)
Unlike 2000-A88, the 2015-1-A01 standard does not include runout as one of the elements for which a tolerance is explicitly provided.
serves as the primary accuracy classification system for tangential measurements of cylindrical gears. It provides a standardized language for engineers to specify gear accuracy, ensuring that a gear manufactured in one facility meets the exact functional requirements of a system designed elsewhere. agma 20151a01 pdf
The brilliance of this classification lies in its "functional" nature. A Class A gear under this standard is not just "shinier" or "smoother"; it has mathematically proven to maintain a tighter control over its rotational velocity when mated with a master gear.
If you only need general guidance (not the full copyrighted standard): : Verifies the accuracy of the alignment of
: Measures the variance between adjacent tooth profiles.
In , the accuracy grade numbering system is inverted compared to older systems. In this standard, smaller numbers represent smaller tolerances , and thus, higher precision. It provides a standardized language for engineers to
: It defines specific tolerance grades that correlate to the gear's intended performance. For example, a grade formerly known as "Q7" in the old 2000-A88 system might correspond to a Grade A7 in this newer standard.
AGMA standards, like most technical standards from official standards developing organizations, are protected by copyright. They represent the culmination of years of work by industry experts and are a primary source of revenue for the organizations that maintain them. Consequently,