AGMA 909-A06 pdf download.Specifications for Molded Plastic Gears.
This information sheet is intended to aid the designer to select an appropriate set of specifications that will clearly convey to the producer what is required. Implications and reasons for the design specifications are discussed. Suggested data forms are given in annexes A, B and C.
These specifications cover the types of plastic gears commonly manufactured by injection molding. Specifications are described for involute external and internal spur and helical gears. Less common bevel and face gears are not covered here because their specifications are significantly different, although they can be injection molded. Gears made by methods other than injection molding may require other specifications or practices.