J609_200307 Mounting Flanges and Power Take-Off Shafts for Small Engines

Initial changes presented by this revision of SAE J609 are editorial in nature and aimed at correcting errors found in the published edition thus bring the document in line with SAE requirements. A primary objective is to modify English dimensions for flanges and PTO shafts into their metric dimensional equivalents.

However to satisfy one of the disapproving votes, the dimensions and design features for a 25 mm PTO shaft was included for Flange E on page 5. Although, not common at the time this document was initially revised and submitted for committee ballot, this PTO is increasingly more popular for the particular configuration shown by Flange E and is now included.