This is a hydraulic motor shaft. I believe the only difference between 220879-001 and 7360-001 is that this part has what they called a "sensor shaft". The item "Eaton Char-Lynn Hydraulic Motor Shaft 1, woodruff key slot, sensor 220879-001" is in sale since Thursday, August 8, 2019.
This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Hydraulic & Pneumatic Motors". The seller is "fitnessrepairpartscom" and is located in Saint Charles, Missouri. This item can be shipped to United States.