I just replaced 2 bearings in a JD round baler roller. Gerry in NC gave me the idea on how to fix it.
Here's how I'd go after yours:
1. Drain the oil down somewhat so it doesn't run down the tube and out the axle.
2. Jack up the far side and block it so that you have gravity in your favor...sloping down hill if you think you will loose something in the following process, like a ball bearing rolling the wrong way. Be careful....obviously.
3. With everything out of the way, and a water hose handy if needed, just in case....
4. Take your cutting torch and a pick of some kind, make one out of a long handle screw driver if you don't have one.....I got a set of them from HF....pick on one end and point on the other, set of 3 or 4 steel rods....Also a hammer and punch.
5. Heat your balls (careful here) and pick them out to get them out of the way. With your torch carefully cut into the inner race and while hot bang on it with the hammer and punch till you deform it so that you can use your pick and pull it out.
6. Make a slide hammer (HF has them too) if you don't have one and hook it behind the outer race of your bearing and going in a criss cross fashion, work it out.
Note: A high quality penetrating oil, not what everybody uses for everything, liberally applied to the outer race works wonders.
With a little emory cloth, clean up the housing and shaft areas where the new bearing races will ride and lube them up with some more PO.
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