PURPOSE AND SCOPE: This SAE Standard was prepared to assist manufacturers of tractors and implements in providing suitable means of transmitting power from the tractor power take-off to the implement and satisfactory hitching of the implement to the tractor. The SAE Standard J1170@ Rear Power Take-Off for Agricultural Tractors@ provides dimension relating to the tractor power take-off shaft@ master shield and drawbar; also@ provides specifications for the splined power take-off shaft and the mating connector; and@ establishes and defines three sizes and/or types of power take-off shaft dimensions. The SAE Standard J715f@ SEP83@Three-Point Free-Link Hitch Attachment of Implements to Agricultural Wheeled Tractors@ sets forth requirements for the attachment of three-point hitch implements or equipment to the rear of agricultural wheel tractors. The successful performance of all tractor and implement combinations likely to be met in field service requires consideration of factors other than the dimensional relationship provided in the aforementioned SAE standards.
SAE J721-1987 history
1996SAE J721-1996 Operating Requirements for Tractors and Power Take-Off Driven Implements
1993SAE J721-1993 OPERATING REQUIREMENTS FOR POWER TAKE-OFF DRIVES
1987SAE J721-1987 Operating Requirements for Tractors and Power Take-Off Driven Implements
1980SAE J721-1980 Operating Requirements for Tractors and Power Take-Off Driven Implements
1975SAE J721F-1975 OPERATING REQUIREMENTS FOR POWER TAKE-OFF DRIVES