The top PTO shaft runs at 1000 revolutions per minute (RPM). It is normally found on larger equipment.
The shield has been removed for clarity.
The bottom PTO shaft runs at 540 RPM and can be found on many size tractors from small to large.
The PTO is located on tractors and other implements.
It takes power from the tractor and uses it to run pieces of machinery.
This is a PTO driven grain auger. It has the shaft shield with connector shields on it.
You can see the white plastic bushing that used to hold the shield in place.
This means the shields can no longer do their job, and in fact create more of a hazard.
This is not good. It should be fixed.