Illustrations used here are not intended to include all existing industrial or agricultural machines, or to be exactly descriptive of any particular machine. They have been picked to describe the principles to be used in applying this standard. This Standard provides names of many of the major components and parts peculiar to agricultural and industrial rotary, flail and sickle bar type mowers.
SAE J990-2004 history
2020SAE J990-2020 Nomenclature-Industrial and Agricultural Mowers
2014SAE J990-2014 Nomenclature-Industrial and Agricultural Mowers
2009SAE J990-2009 Nomenclature Industrial and Agricultural Mowers
2004SAE J990-2004 Nomenclature Industrial and Agricultural Mowers
1987SAE J990-1987 Nomenclature - Industrial and Agricultural Mowers