ASAE/ASABE S205.2 (R2023)

This Standard deals only with the definitions and terminology pertaining to the power shafts of farm tractors in which the power take-off rotational speed is proportional to the engine speed. This is the type that prevails in the United States, Canada, England, and generally throughout the world. The following terminology will facilitate a clear understanding for engineering discussions, comparisons and the preparation of technical papers.