Thanks for the extra info Mike about the bearing and lock ring. I was going to ask if it was a screw on or shrink fit lock ring. Only way off for that lock ring if hitting the outter edge with a cold chisel doesl expand it enough is to cut it off. But again heat might be you friend on it too.
Cool. I'd encourage you to google around and look at SKF sites for taper sleeves etc - then you'll see what you have there
It's in the nature of bearing races that they are very hard - and brittle. Once you're sure you know what the bits you have are - you can geit it off the shaft by cutting it into pieces. the outer race will be easy - if you cut it in two place at 180 degrees, it'll just fall off. Ditto the lightweight cage and rollers. If you can undo the locking ring or cut it off - then the taper of the inside of the inner race of the bearing and the outside of the sleeve (the two tapers that lock together) will work in your favour. With a bit of penetrating oil and patience you may simply be able to tap the bearing last part - the inner race - in towards the windings. Even a mm or two will be enough to break the taper between the two bit so they'll come off the shaft.
the way to get your head around it is to think of the thread and the nut as "pulling" the tapered sleeve through the bearing to tighten it onto the shaft
Anyway, if you have to cut off the inner race - you can cut 90% of the way through it (so you don't cut into the shaft - although it won't matter if you do a bit) in three or four places and then give it a few decent smacks with a hammer and cold chisel to exploit its brittle-ness - and it should just fly apart
Wear goggles or face protection - bearing shards are unbelievably sharp
Good luck
