scope:

This Standard is applicable to enclosed epicyclic speed reducers and increasers which use spur and helical gears. It applies to non-aircraft industrial, vehicular, or machine tool gear units with carrier speeds less than 1800 rpm.

Limitations. The rating methods and influences identified in this Standard are limited to enclosed drives of single and multiple stage designs. A more detailed engineering study should be undertaken if conditions such as the following exist:

Light Weight

Pitch Line Velocity greater than 25 m/s

High Power

Minimum Space

Lube other than specified by AGMA 250.04

Low Speed

Unusual Ambient Temperature

NOTE: The American Gear Manufacturers Association makes no representation, warranty, or guarantee in connection with the publication of any AGMA Standard and hereby expressly disclaims any liability or responsibility for loss or damage resulting from their use. Similarly, violation of any federal, state, or municipal regulation with which an AGMA Standard may conflict, or for the infringement of any patent resulting from the use of an AGMA Standard is the responsibility of the user.